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Date: Thu, 10 Nov 2016 22:24:44 +0200
From: Elena Reshetova <elena.reshetova@...el.com>
To: kernel-hardening@...ts.openwall.com
Cc: keescook@...omium.org,
arnd@...db.de,
tglx@...utronix.de,
mingo@...hat.com,
h.peter.anvin@...el.com,
peterz@...radead.org,
will.deacon@....com,
David Windsor <dwindsor@...il.com>,
Hans Liljestrand <ishkamiel@...il.com>,
Elena Reshetova <elena.reshetova@...el.com>
Subject: [RFC v4 PATCH 09/13] drivers: identify wrapping atomic usage (part 1/2)
From: David Windsor <dwindsor@...il.com>
In some cases atomic is not used for reference
counting and therefore should be allowed to overflow.
Identify such cases and make a switch to non-hardened
atomic version.
This might need more fine-grained split between
different drivers.
The copyright for the original PAX_REFCOUNT code:
- all REFCOUNT code in general: PaX Team <pageexec@...email.hu>
- various false positive fixes: Mathias Krause <minipli@...glemail.com>
Signed-off-by: Hans Liljestrand <ishkamiel@...il.com>
Signed-off-by: Elena Reshetova <elena.reshetova@...el.com>
Signed-off-by: David Windsor <dwindsor@...il.com>
---
drivers/acpi/apei/ghes.c | 4 +-
drivers/ata/libata-core.c | 5 +-
drivers/ata/libata-scsi.c | 2 +-
drivers/ata/libata.h | 2 +-
drivers/base/power/wakeup.c | 8 +-
drivers/block/drbd/drbd_bitmap.c | 2 +-
drivers/block/drbd/drbd_int.h | 9 +-
drivers/block/drbd/drbd_main.c | 15 +--
drivers/block/drbd/drbd_nl.c | 16 +--
drivers/block/drbd/drbd_receiver.c | 34 +++----
drivers/block/drbd/drbd_worker.c | 8 +-
drivers/char/ipmi/ipmi_msghandler.c | 8 +-
drivers/char/ipmi/ipmi_si_intf.c | 8 +-
drivers/crypto/hifn_795x.c | 4 +-
drivers/edac/edac_device.c | 4 +-
drivers/edac/edac_pci.c | 4 +-
drivers/edac/edac_pci_sysfs.c | 20 ++--
drivers/firewire/core-card.c | 4 +-
drivers/firmware/efi/cper.c | 8 +-
drivers/gpio/gpio-vr41xx.c | 2 +-
drivers/gpu/drm/i810/i810_drv.h | 4 +-
drivers/gpu/drm/mga/mga_drv.h | 4 +-
drivers/gpu/drm/mga/mga_irq.c | 9 +-
drivers/gpu/drm/qxl/qxl_cmd.c | 12 +--
drivers/gpu/drm/qxl/qxl_debugfs.c | 8 +-
drivers/gpu/drm/qxl/qxl_drv.h | 8 +-
drivers/gpu/drm/qxl/qxl_irq.c | 16 +--
drivers/gpu/drm/r128/r128_cce.c | 2 +-
drivers/gpu/drm/r128/r128_drv.h | 4 +-
drivers/gpu/drm/r128/r128_irq.c | 4 +-
drivers/gpu/drm/r128/r128_state.c | 4 +-
drivers/gpu/drm/via/via_drv.h | 4 +-
drivers/gpu/drm/via/via_irq.c | 18 ++--
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 2 +-
drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c | 6 +-
drivers/gpu/drm/vmwgfx/vmwgfx_irq.c | 4 +-
drivers/gpu/drm/vmwgfx/vmwgfx_marker.c | 2 +-
drivers/hid/hid-core.c | 4 +-
drivers/hv/channel.c | 4 +-
drivers/hv/hv_balloon.c | 19 ++--
drivers/hv/hyperv_vmbus.h | 2 +-
drivers/hwmon/sht15.c | 12 +--
drivers/infiniband/core/cm.c | 52 +++++-----
drivers/infiniband/core/fmr_pool.c | 23 +++--
drivers/infiniband/hw/cxgb4/mem.c | 4 +-
drivers/infiniband/hw/mlx4/mad.c | 2 +-
drivers/infiniband/hw/mlx4/mcg.c | 2 +-
drivers/infiniband/hw/mlx4/mlx4_ib.h | 2 +-
drivers/infiniband/hw/nes/nes.c | 4 +-
drivers/infiniband/hw/nes/nes.h | 40 ++++----
drivers/infiniband/hw/nes/nes_cm.c | 62 ++++++------
drivers/infiniband/hw/nes/nes_mgt.c | 8 +-
drivers/infiniband/hw/nes/nes_nic.c | 40 ++++----
drivers/infiniband/hw/nes/nes_verbs.c | 10 +-
drivers/input/gameport/gameport.c | 4 +-
drivers/input/input.c | 4 +-
drivers/input/misc/ims-pcu.c | 4 +-
drivers/input/serio/serio.c | 4 +-
drivers/input/serio/serio_raw.c | 4 +-
drivers/isdn/capi/capi.c | 11 ++-
drivers/md/dm-core.h | 4 +-
drivers/md/dm-raid.c | 3 +-
drivers/md/dm-raid1.c | 18 ++--
drivers/md/dm-stripe.c | 11 ++-
drivers/md/dm.c | 12 +--
drivers/md/md.c | 32 +++---
drivers/md/md.h | 15 +--
drivers/md/raid1.c | 8 +-
drivers/md/raid10.c | 20 ++--
drivers/md/raid5.c | 17 ++--
drivers/media/pci/ivtv/ivtv-driver.c | 2 +-
drivers/media/pci/solo6x10/solo6x10-p2m.c | 3 +-
drivers/media/pci/solo6x10/solo6x10.h | 2 +-
drivers/media/pci/tw68/tw68-core.c | 2 +-
drivers/media/radio/radio-maxiradio.c | 2 +-
drivers/media/radio/radio-shark.c | 2 +-
drivers/media/radio/radio-shark2.c | 2 +-
drivers/media/radio/radio-si476x.c | 2 +-
drivers/media/v4l2-core/v4l2-device.c | 4 +-
drivers/misc/lis3lv02d/lis3lv02d.c | 8 +-
drivers/misc/lis3lv02d/lis3lv02d.h | 2 +-
drivers/misc/sgi-gru/gruhandles.c | 4 +-
drivers/misc/sgi-gru/gruprocfs.c | 8 +-
drivers/misc/sgi-gru/grutables.h | 158 +++++++++++++++---------------
drivers/net/hyperv/hyperv_net.h | 2 +-
drivers/net/hyperv/rndis_filter.c | 4 +-
include/linux/genhd.h | 2 +-
include/media/v4l2-device.h | 2 +-
88 files changed, 491 insertions(+), 459 deletions(-)
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index f0a029e..c25a4be 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -483,7 +483,7 @@ static void __ghes_print_estatus(const char *pfx,
const struct acpi_hest_generic *generic,
const struct acpi_hest_generic_status *estatus)
{
- static atomic_t seqno;
+ static atomic_wrap_t seqno;
unsigned int curr_seqno;
char pfx_seq[64];
@@ -494,7 +494,7 @@ static void __ghes_print_estatus(const char *pfx,
else
pfx = KERN_ERR;
}
- curr_seqno = atomic_inc_return(&seqno);
+ curr_seqno = atomic_inc_return_wrap(&seqno);
snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}" HW_ERR, pfx, curr_seqno);
printk("%s""Hardware error from APEI Generic Hardware Error Source: %d\n",
pfx_seq, generic->header.source_id);
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 223a770..2f2565c 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -105,7 +105,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
static void ata_dev_xfermask(struct ata_device *dev);
static unsigned long ata_dev_blacklisted(const struct ata_device *dev);
-atomic_t ata_print_id = ATOMIC_INIT(0);
+atomic_wrap_t ata_print_id = ATOMIC_INIT(0);
struct ata_force_param {
const char *name;
@@ -6327,7 +6327,8 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
/* give ports names and add SCSI hosts */
for (i = 0; i < host->n_ports; i++) {
- host->ports[i]->print_id = atomic_inc_return(&ata_print_id);
+ host->ports[i]->print_id =
+ atomic_inc_return_wrap(&ata_print_id);
host->ports[i]->local_port_no = i + 1;
}
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 9cceb4a..fb247ec 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -4907,7 +4907,7 @@ int ata_sas_port_init(struct ata_port *ap)
if (rc)
return rc;
- ap->print_id = atomic_inc_return(&ata_print_id);
+ ap->print_id = atomic_inc_return_wrap(&ata_print_id);
return 0;
}
EXPORT_SYMBOL_GPL(ata_sas_port_init);
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 3b301a4..7f7a622 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -53,7 +53,7 @@ enum {
ATA_DNXFER_QUIET = (1 << 31),
};
-extern atomic_t ata_print_id;
+extern atomic_wrap_t ata_print_id;
extern int atapi_passthru16;
extern int libata_fua;
extern int libata_noacpi;
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 62e4de2..efed054 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -36,14 +36,14 @@ static bool pm_abort_suspend __read_mostly;
* They need to be modified together atomically, so it's better to use one
* atomic variable to hold them both.
*/
-static atomic_t combined_event_count = ATOMIC_INIT(0);
+static atomic_wrap_t combined_event_count = ATOMIC_INIT(0);
#define IN_PROGRESS_BITS (sizeof(int) * 4)
#define MAX_IN_PROGRESS ((1 << IN_PROGRESS_BITS) - 1)
static void split_counters(unsigned int *cnt, unsigned int *inpr)
{
- unsigned int comb = atomic_read(&combined_event_count);
+ unsigned int comb = atomic_read_wrap(&combined_event_count);
*cnt = (comb >> IN_PROGRESS_BITS);
*inpr = comb & MAX_IN_PROGRESS;
@@ -538,7 +538,7 @@ static void wakeup_source_activate(struct wakeup_source *ws)
ws->start_prevent_time = ws->last_time;
/* Increment the counter of events in progress. */
- cec = atomic_inc_return(&combined_event_count);
+ cec = atomic_inc_return_wrap(&combined_event_count);
trace_wakeup_source_activate(ws->name, cec);
}
@@ -664,7 +664,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws)
* Increment the counter of registered wakeup events and decrement the
* couter of wakeup events in progress simultaneously.
*/
- cec = atomic_add_return(MAX_IN_PROGRESS, &combined_event_count);
+ cec = atomic_add_return_wrap(MAX_IN_PROGRESS, &combined_event_count);
trace_wakeup_source_deactivate(ws->name, cec);
split_counters(&cnt, &inpr);
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index ab62b81..637619c 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -1034,7 +1034,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho
submit_bio(bio);
/* this should not count as user activity and cause the
* resync to throttle -- see drbd_rs_should_slow_down(). */
- atomic_add(len >> 9, &device->rs_sect_ev);
+ atomic_add_wrap(len >> 9, &device->rs_sect_ev);
}
}
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 4cb8f21..7bbe3b8 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -383,7 +383,7 @@ struct drbd_epoch {
struct drbd_connection *connection;
struct list_head list;
unsigned int barrier_nr;
- atomic_t epoch_size; /* increased on every request added. */
+ atomic_wrap_t epoch_size; /* increased on every request added. */
atomic_t active; /* increased on every req. added, and dec on every finished. */
unsigned long flags;
};
@@ -960,7 +960,7 @@ struct drbd_device {
unsigned int al_tr_number;
int al_tr_cycle;
wait_queue_head_t seq_wait;
- atomic_t packet_seq;
+ atomic_wrap_t packet_seq;
unsigned int peer_seq;
spinlock_t peer_seq_lock;
unsigned long comm_bm_set; /* communicated number of set bits. */
@@ -969,8 +969,9 @@ struct drbd_device {
struct mutex own_state_mutex;
struct mutex *state_mutex; /* either own_state_mutex or first_peer_device(device)->connection->cstate_mutex */
char congestion_reason; /* Why we where congested... */
- atomic_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
- atomic_t rs_sect_ev; /* for submitted resync data rate, both */
+ atomic_wrap_t rs_sect_in;
+ /* for incoming resync data rate, SyncTarget */
+ atomic_wrap_t rs_sect_ev; /* for submitted resync data rate, both */
int rs_last_sect_ev; /* counter to compare with */
int rs_last_events; /* counter of read or write "events" (unit sectors)
* on the lower level device when we last looked. */
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 100be55..7ee89e9 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1363,7 +1363,8 @@ static int _drbd_send_ack(struct drbd_peer_device *peer_device, enum drbd_packet
p->sector = sector;
p->block_id = block_id;
p->blksize = blksize;
- p->seq_num = cpu_to_be32(atomic_inc_return(&peer_device->device->packet_seq));
+ p->seq_num = cpu_to_be32(atomic_inc_return_wrap(&peer_device->
+ device->packet_seq));
return drbd_send_command(peer_device, sock, cmd, sizeof(*p), NULL, 0);
}
@@ -1695,7 +1696,7 @@ int drbd_send_dblock(struct drbd_peer_device *peer_device, struct drbd_request *
return -EIO;
p->sector = cpu_to_be64(req->i.sector);
p->block_id = (unsigned long)req;
- p->seq_num = cpu_to_be32(atomic_inc_return(&device->packet_seq));
+ p->seq_num = cpu_to_be32(atomic_inc_return_wrap(&device->packet_seq));
dp_flags = bio_flags_to_wire(peer_device->connection, req->master_bio);
if (device->state.conn >= C_SYNC_SOURCE &&
device->state.conn <= C_PAUSED_SYNC_T)
@@ -1984,8 +1985,8 @@ void drbd_init_set_defaults(struct drbd_device *device)
atomic_set(&device->unacked_cnt, 0);
atomic_set(&device->local_cnt, 0);
atomic_set(&device->pp_in_use_by_net, 0);
- atomic_set(&device->rs_sect_in, 0);
- atomic_set(&device->rs_sect_ev, 0);
+ atomic_set_wrap(&device->rs_sect_in, 0);
+ atomic_set_wrap(&device->rs_sect_ev, 0);
atomic_set(&device->ap_in_flight, 0);
atomic_set(&device->md_io.in_use, 0);
@@ -2752,8 +2753,10 @@ void drbd_destroy_connection(struct kref *kref)
struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref);
struct drbd_resource *resource = connection->resource;
- if (atomic_read(&connection->current_epoch->epoch_size) != 0)
- drbd_err(connection, "epoch_size:%d\n", atomic_read(&connection->current_epoch->epoch_size));
+ if (atomic_read_wrap(&connection->current_epoch->epoch_size) != 0)
+ drbd_err(connection, "epoch_size:%d\n",
+ atomic_read_wrap(&connection->
+ current_epoch->epoch_size));
kfree(connection->current_epoch);
idr_destroy(&connection->peer_devices);
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index f35db29..224cdf3 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -89,8 +89,8 @@ int drbd_adm_get_initial_state(struct sk_buff *skb, struct netlink_callback *cb)
#include "drbd_nla.h"
#include <linux/genl_magic_func.h>
-static atomic_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
-static atomic_t notify_genl_seq = ATOMIC_INIT(2); /* two. */
+static atomic_wrap_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
+static atomic_wrap_t notify_genl_seq = ATOMIC_INIT(2); /* two. */
DEFINE_MUTEX(notification_mutex);
@@ -4549,7 +4549,7 @@ void drbd_bcast_event(struct drbd_device *device, const struct sib_info *sib)
unsigned seq;
int err = -ENOMEM;
- seq = atomic_inc_return(&drbd_genl_seq);
+ seq = atomic_inc_return_wrap(&drbd_genl_seq);
msg = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
if (!msg)
goto failed;
@@ -4601,7 +4601,7 @@ void notify_resource_state(struct sk_buff *skb,
int err;
if (!skb) {
- seq = atomic_inc_return(¬ify_genl_seq);
+ seq = atomic_inc_return_wrap(¬ify_genl_seq);
skb = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
err = -ENOMEM;
if (!skb)
@@ -4652,7 +4652,7 @@ void notify_device_state(struct sk_buff *skb,
int err;
if (!skb) {
- seq = atomic_inc_return(¬ify_genl_seq);
+ seq = atomic_inc_return_wrap(¬ify_genl_seq);
skb = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
err = -ENOMEM;
if (!skb)
@@ -4701,7 +4701,7 @@ void notify_connection_state(struct sk_buff *skb,
int err;
if (!skb) {
- seq = atomic_inc_return(¬ify_genl_seq);
+ seq = atomic_inc_return_wrap(¬ify_genl_seq);
skb = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
err = -ENOMEM;
if (!skb)
@@ -4751,7 +4751,7 @@ void notify_peer_device_state(struct sk_buff *skb,
int err;
if (!skb) {
- seq = atomic_inc_return(¬ify_genl_seq);
+ seq = atomic_inc_return_wrap(¬ify_genl_seq);
skb = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
err = -ENOMEM;
if (!skb)
@@ -4794,7 +4794,7 @@ void notify_helper(enum drbd_notification_type type,
{
struct drbd_resource *resource = device ? device->resource : connection->resource;
struct drbd_helper_info helper_info;
- unsigned int seq = atomic_inc_return(¬ify_genl_seq);
+ unsigned int seq = atomic_inc_return_wrap(¬ify_genl_seq);
struct sk_buff *skb = NULL;
struct drbd_genlmsghdr *dh;
int err;
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 942384f..b0deeeb 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -898,7 +898,7 @@ int drbd_connected(struct drbd_peer_device *peer_device)
struct drbd_device *device = peer_device->device;
int err;
- atomic_set(&device->packet_seq, 0);
+ atomic_set_wrap(&device->packet_seq, 0);
device->peer_seq = 0;
device->state_mutex = peer_device->connection->agreed_pro_version < 100 ?
@@ -1333,7 +1333,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
do {
next_epoch = NULL;
- epoch_size = atomic_read(&epoch->epoch_size);
+ epoch_size = atomic_read_wrap(&epoch->epoch_size);
switch (ev & ~EV_CLEANUP) {
case EV_PUT:
@@ -1373,7 +1373,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
rv = FE_DESTROYED;
} else {
epoch->flags = 0;
- atomic_set(&epoch->epoch_size, 0);
+ atomic_set_wrap(&epoch->epoch_size, 0);
/* atomic_set(&epoch->active, 0); is already zero */
if (rv == FE_STILL_LIVE)
rv = FE_RECYCLED;
@@ -1759,7 +1759,7 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
conn_wait_active_ee_empty(connection);
drbd_flush(connection);
- if (atomic_read(&connection->current_epoch->epoch_size)) {
+ if (atomic_read_wrap(&connection->current_epoch->epoch_size)) {
epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
if (epoch)
break;
@@ -1773,11 +1773,11 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
}
epoch->flags = 0;
- atomic_set(&epoch->epoch_size, 0);
+ atomic_set_wrap(&epoch->epoch_size, 0);
atomic_set(&epoch->active, 0);
spin_lock(&connection->epoch_lock);
- if (atomic_read(&connection->current_epoch->epoch_size)) {
+ if (atomic_read_wrap(&connection->current_epoch->epoch_size)) {
list_add(&epoch->list, &connection->current_epoch->list);
connection->current_epoch = epoch;
connection->epochs++;
@@ -2052,7 +2052,7 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto
list_add_tail(&peer_req->w.list, &device->sync_ee);
spin_unlock_irq(&device->resource->req_lock);
- atomic_add(pi->size >> 9, &device->rs_sect_ev);
+ atomic_add_wrap(pi->size >> 9, &device->rs_sect_ev);
if (drbd_submit_peer_request(device, peer_req, REQ_OP_WRITE, 0,
DRBD_FAULT_RS_WR) == 0)
return 0;
@@ -2151,7 +2151,7 @@ static int receive_RSDataReply(struct drbd_connection *connection, struct packet
drbd_send_ack_dp(peer_device, P_NEG_ACK, p, pi->size);
}
- atomic_add(pi->size >> 9, &device->rs_sect_in);
+ atomic_add_wrap(pi->size >> 9, &device->rs_sect_in);
return err;
}
@@ -2548,7 +2548,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
err = wait_for_and_update_peer_seq(peer_device, peer_seq);
drbd_send_ack_dp(peer_device, P_NEG_ACK, p, pi->size);
- atomic_inc(&connection->current_epoch->epoch_size);
+ atomic_inc_wrap(&connection->current_epoch->epoch_size);
err2 = drbd_drain_block(peer_device, pi->size);
if (!err)
err = err2;
@@ -2589,7 +2589,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
spin_lock(&connection->epoch_lock);
peer_req->epoch = connection->current_epoch;
- atomic_inc(&peer_req->epoch->epoch_size);
+ atomic_inc_wrap(&peer_req->epoch->epoch_size);
atomic_inc(&peer_req->epoch->active);
spin_unlock(&connection->epoch_lock);
@@ -2735,7 +2735,7 @@ bool drbd_rs_c_min_rate_throttle(struct drbd_device *device)
curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
(int)part_stat_read(&disk->part0, sectors[1]) -
- atomic_read(&device->rs_sect_ev);
+ atomic_read_wrap(&device->rs_sect_ev);
if (atomic_read(&device->ap_actlog_cnt)
|| curr_events - device->rs_last_events > 64) {
@@ -2881,7 +2881,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
device->use_csums = true;
} else if (pi->cmd == P_OV_REPLY) {
/* track progress, we may need to throttle */
- atomic_add(size >> 9, &device->rs_sect_in);
+ atomic_add_wrap(size >> 9, &device->rs_sect_in);
peer_req->w.cb = w_e_end_ov_reply;
dec_rs_pending(device);
/* drbd_rs_begin_io done when we sent this request,
@@ -2954,7 +2954,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
goto out_free_e;
submit_for_resync:
- atomic_add(size >> 9, &device->rs_sect_ev);
+ atomic_add_wrap(size >> 9, &device->rs_sect_ev);
submit:
update_receiver_timing_details(connection, drbd_submit_peer_request);
@@ -4907,7 +4907,7 @@ static int receive_rs_deallocated(struct drbd_connection *connection, struct pac
list_add_tail(&peer_req->w.list, &device->sync_ee);
spin_unlock_irq(&device->resource->req_lock);
- atomic_add(pi->size >> 9, &device->rs_sect_ev);
+ atomic_add_wrap(pi->size >> 9, &device->rs_sect_ev);
err = drbd_submit_peer_request(device, peer_req, op, 0, DRBD_FAULT_RS_WR);
if (err) {
@@ -4931,7 +4931,7 @@ static int receive_rs_deallocated(struct drbd_connection *connection, struct pac
drbd_send_ack_ex(peer_device, P_NEG_ACK, sector, size, ID_SYNCER);
}
- atomic_add(size >> 9, &device->rs_sect_in);
+ atomic_add_wrap(size >> 9, &device->rs_sect_in);
return err;
}
@@ -5068,7 +5068,7 @@ static void conn_disconnect(struct drbd_connection *connection)
if (!list_empty(&connection->current_epoch->list))
drbd_err(connection, "ASSERTION FAILED: connection->current_epoch->list not empty\n");
/* ok, no more ee's on the fly, it is safe to reset the epoch_size */
- atomic_set(&connection->current_epoch->epoch_size, 0);
+ atomic_set_wrap(&connection->current_epoch->epoch_size, 0);
connection->send.seen_any_write_yet = false;
drbd_info(connection, "Connection closed\n");
@@ -5574,7 +5574,7 @@ static int got_IsInSync(struct drbd_connection *connection, struct packet_info *
put_ldev(device);
}
dec_rs_pending(device);
- atomic_add(blksize >> 9, &device->rs_sect_in);
+ atomic_add_wrap(blksize >> 9, &device->rs_sect_in);
return 0;
}
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index c6755c9..1456ce0 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -408,7 +408,7 @@ static int read_for_csum(struct drbd_peer_device *peer_device, sector_t sector,
list_add_tail(&peer_req->w.list, &device->read_ee);
spin_unlock_irq(&device->resource->req_lock);
- atomic_add(size >> 9, &device->rs_sect_ev);
+ atomic_add_wrap(size >> 9, &device->rs_sect_ev);
if (drbd_submit_peer_request(device, peer_req, REQ_OP_READ, 0,
DRBD_FAULT_RS_RD) == 0)
return 0;
@@ -554,7 +554,7 @@ static int drbd_rs_number_requests(struct drbd_device *device)
unsigned int sect_in; /* Number of sectors that came in since the last turn */
int number, mxb;
- sect_in = atomic_xchg(&device->rs_sect_in, 0);
+ sect_in = atomic_xchg_wrap(&device->rs_sect_in, 0);
device->rs_in_flight -= sect_in;
rcu_read_lock();
@@ -1662,8 +1662,8 @@ void drbd_rs_controller_reset(struct drbd_device *device)
struct gendisk *disk = device->ldev->backing_bdev->bd_contains->bd_disk;
struct fifo_buffer *plan;
- atomic_set(&device->rs_sect_in, 0);
- atomic_set(&device->rs_sect_ev, 0);
+ atomic_set_wrap(&device->rs_sect_in, 0);
+ atomic_set_wrap(&device->rs_sect_ev, 0);
device->rs_in_flight = 0;
device->rs_last_events =
(int)part_stat_read(&disk->part0, sectors[0]) +
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index fcdd886..73ad3df 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -436,7 +436,7 @@ struct ipmi_smi {
struct proc_dir_entry *proc_dir;
char proc_dir_name[10];
- atomic_t stats[IPMI_NUM_STATS];
+ atomic_wrap_t stats[IPMI_NUM_STATS];
/*
* run_to_completion duplicate of smb_info, smi_info
@@ -468,9 +468,9 @@ static LIST_HEAD(smi_watchers);
static DEFINE_MUTEX(smi_watchers_mutex);
#define ipmi_inc_stat(intf, stat) \
- atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat])
+ atomic_inc_wrap(&(intf)->stats[IPMI_STAT_ ## stat])
#define ipmi_get_stat(intf, stat) \
- ((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
+ ((unsigned int) atomic_read_wrap(&(intf)->stats[IPMI_STAT_ ## stat]))
static const char * const addr_src_to_str[] = {
"invalid", "hotmod", "hardcoded", "SPMI", "ACPI", "SMBIOS", "PCI",
@@ -2835,7 +2835,7 @@ int ipmi_register_smi(const struct ipmi_smi_handlers *handlers,
INIT_LIST_HEAD(&intf->cmd_rcvrs);
init_waitqueue_head(&intf->waitq);
for (i = 0; i < IPMI_NUM_STATS; i++)
- atomic_set(&intf->stats[i], 0);
+ atomic_set_wrap(&intf->stats[i], 0);
intf->proc_dir = NULL;
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index a112c01..e18be9e 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -302,7 +302,7 @@ struct smi_info {
unsigned char slave_addr;
/* Counters and things for the proc filesystem. */
- atomic_t stats[SI_NUM_STATS];
+ atomic_wrap_t stats[SI_NUM_STATS];
struct task_struct *thread;
@@ -311,9 +311,9 @@ struct smi_info {
};
#define smi_inc_stat(smi, stat) \
- atomic_inc(&(smi)->stats[SI_STAT_ ## stat])
+ atomic_inc_wrap(&(smi)->stats[SI_STAT_ ## stat])
#define smi_get_stat(smi, stat) \
- ((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat]))
+ ((unsigned int) atomic_read_wrap(&(smi)->stats[SI_STAT_ ## stat]))
#define SI_MAX_PARMS 4
@@ -3578,7 +3578,7 @@ static int try_smi_init(struct smi_info *new_smi)
atomic_set(&new_smi->req_events, 0);
new_smi->run_to_completion = false;
for (i = 0; i < SI_NUM_STATS; i++)
- atomic_set(&new_smi->stats[i], 0);
+ atomic_set_wrap(&new_smi->stats[i], 0);
new_smi->interrupt_disabled = true;
atomic_set(&new_smi->need_watch, 0);
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index e09d405..eda55dd 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -37,7 +37,7 @@ module_param_string(hifn_pll_ref, hifn_pll_ref, sizeof(hifn_pll_ref), 0444);
MODULE_PARM_DESC(hifn_pll_ref,
"PLL reference clock (pci[freq] or ext[freq], default ext)");
-static atomic_t hifn_dev_number;
+static atomic_wrap_t hifn_dev_number;
#define ACRYPTO_OP_DECRYPT 0
#define ACRYPTO_OP_ENCRYPT 1
@@ -2475,7 +2475,7 @@ static int hifn_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto err_out_disable_pci_device;
snprintf(name, sizeof(name), "hifn%d",
- atomic_inc_return(&hifn_dev_number) - 1);
+ atomic_inc_return_wrap(&hifn_dev_number) - 1);
err = pci_request_regions(pdev, name);
if (err)
diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index a979003..83f3cfc 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -468,9 +468,9 @@ void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev,
*/
int edac_device_alloc_index(void)
{
- static atomic_t device_indexes = ATOMIC_INIT(0);
+ static atomic_wrap_t device_indexes = ATOMIC_INIT(0);
- return atomic_inc_return(&device_indexes) - 1;
+ return atomic_inc_return_wrap(&device_indexes) - 1;
}
EXPORT_SYMBOL_GPL(edac_device_alloc_index);
diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
index 8f2f289..8f228a8 100644
--- a/drivers/edac/edac_pci.c
+++ b/drivers/edac/edac_pci.c
@@ -29,7 +29,7 @@
static DEFINE_MUTEX(edac_pci_ctls_mutex);
static LIST_HEAD(edac_pci_list);
-static atomic_t pci_indexes = ATOMIC_INIT(0);
+static atomic_wrap_t pci_indexes = ATOMIC_INIT(0);
/*
* edac_pci_alloc_ctl_info
@@ -224,7 +224,7 @@ static void edac_pci_workq_function(struct work_struct *work_req)
*/
int edac_pci_alloc_index(void)
{
- return atomic_inc_return(&pci_indexes) - 1;
+ return atomic_inc_return_wrap(&pci_indexes) - 1;
}
EXPORT_SYMBOL_GPL(edac_pci_alloc_index);
diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
index 6e3428b..d53fb15 100644
--- a/drivers/edac/edac_pci_sysfs.c
+++ b/drivers/edac/edac_pci_sysfs.c
@@ -23,8 +23,8 @@ static int edac_pci_log_pe = 1; /* log PCI parity errors */
static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */
static int edac_pci_poll_msec = 1000; /* one second workq period */
-static atomic_t pci_parity_count = ATOMIC_INIT(0);
-static atomic_t pci_nonparity_count = ATOMIC_INIT(0);
+static atomic_wrap_t pci_parity_count = ATOMIC_INIT(0);
+static atomic_wrap_t pci_nonparity_count = ATOMIC_INIT(0);
static struct kobject *edac_pci_top_main_kobj;
static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0);
@@ -564,7 +564,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
edac_printk(KERN_CRIT, EDAC_PCI,
"Signaled System Error on %s\n",
pci_name(dev));
- atomic_inc(&pci_nonparity_count);
+ atomic_inc_wrap(&pci_nonparity_count);
}
if (status & (PCI_STATUS_PARITY)) {
@@ -572,7 +572,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
"Master Data Parity Error on %s\n",
pci_name(dev));
- atomic_inc(&pci_parity_count);
+ atomic_inc_wrap(&pci_parity_count);
}
if (status & (PCI_STATUS_DETECTED_PARITY)) {
@@ -580,7 +580,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
"Detected Parity Error on %s\n",
pci_name(dev));
- atomic_inc(&pci_parity_count);
+ atomic_inc_wrap(&pci_parity_count);
}
}
@@ -603,7 +603,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
"Signaled System Error on %s\n",
pci_name(dev));
- atomic_inc(&pci_nonparity_count);
+ atomic_inc_wrap(&pci_nonparity_count);
}
if (status & (PCI_STATUS_PARITY)) {
@@ -611,7 +611,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
"Master Data Parity Error on "
"%s\n", pci_name(dev));
- atomic_inc(&pci_parity_count);
+ atomic_inc_wrap(&pci_parity_count);
}
if (status & (PCI_STATUS_DETECTED_PARITY)) {
@@ -619,7 +619,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
"Detected Parity Error on %s\n",
pci_name(dev));
- atomic_inc(&pci_parity_count);
+ atomic_inc_wrap(&pci_parity_count);
}
}
}
@@ -657,7 +657,7 @@ void edac_pci_do_parity_check(void)
if (!check_pci_errors)
return;
- before_count = atomic_read(&pci_parity_count);
+ before_count = atomic_read_wrap(&pci_parity_count);
/* scan all PCI devices looking for a Parity Error on devices and
* bridges.
@@ -669,7 +669,7 @@ void edac_pci_do_parity_check(void)
/* Only if operator has selected panic on PCI Error */
if (edac_pci_get_panic_on_pe()) {
/* If the count is different 'after' from 'before' */
- if (before_count != atomic_read(&pci_parity_count))
+ if (before_count != atomic_read_wrap(&pci_parity_count))
panic("EDAC: PCI Parity Error");
}
}
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
index 57ea7f4..3e3a716 100644
--- a/drivers/firewire/core-card.c
+++ b/drivers/firewire/core-card.c
@@ -528,9 +528,9 @@ void fw_card_initialize(struct fw_card *card,
const struct fw_card_driver *driver,
struct device *device)
{
- static atomic_t index = ATOMIC_INIT(-1);
+ static atomic_wrap_t index = ATOMIC_INIT(-1);
- card->index = atomic_inc_return(&index);
+ card->index = atomic_inc_return_wrap(&index);
card->driver = driver;
card->device = device;
card->current_tlabel = 0;
diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
index d425374..e70a487 100644
--- a/drivers/firmware/efi/cper.c
+++ b/drivers/firmware/efi/cper.c
@@ -44,12 +44,12 @@ static char rcd_decode_str[CPER_REC_LEN];
*/
u64 cper_next_record_id(void)
{
- static atomic64_t seq;
+ static atomic64_wrap_t seq;
- if (!atomic64_read(&seq))
- atomic64_set(&seq, ((u64)get_seconds()) << 32);
+ if (!atomic64_read_wrap(&seq))
+ atomic64_set_wrap(&seq, ((u64)get_seconds()) << 32);
- return atomic64_inc_return(&seq);
+ return atomic64_inc_return_wrap(&seq);
}
EXPORT_SYMBOL_GPL(cper_next_record_id);
diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
index ac8deb0..56843b0c2 100644
--- a/drivers/gpio/gpio-vr41xx.c
+++ b/drivers/gpio/gpio-vr41xx.c
@@ -224,7 +224,7 @@ static int giu_get_irq(unsigned int irq)
printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n",
maskl, pendl, maskh, pendh);
- atomic_inc(&irq_err_count);
+ atomic_inc_wrap(&irq_err_count);
return -EINVAL;
}
diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
index 93ec5dc..793a9f1 100644
--- a/drivers/gpu/drm/i810/i810_drv.h
+++ b/drivers/gpu/drm/i810/i810_drv.h
@@ -110,8 +110,8 @@ typedef struct drm_i810_private {
int page_flipping;
wait_queue_head_t irq_queue;
- atomic_t irq_received;
- atomic_t irq_emitted;
+ atomic_wrap_t irq_received;
+ atomic_wrap_t irq_emitted;
int front_offset;
} drm_i810_private_t;
diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
index bb31233..b6e7c9d 100644
--- a/drivers/gpu/drm/mga/mga_drv.h
+++ b/drivers/gpu/drm/mga/mga_drv.h
@@ -122,9 +122,9 @@ typedef struct drm_mga_private {
u32 clear_cmd;
u32 maccess;
- atomic_t vbl_received; /**< Number of vblanks received. */
+ atomic_wrap_t vbl_received; /**< Number of vblanks received. */
wait_queue_head_t fence_queue;
- atomic_t last_fence_retired;
+ atomic_wrap_t last_fence_retired;
u32 next_fence_to_post;
unsigned int fb_cpp;
diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c
index 693ba70..d7fb10a 100644
--- a/drivers/gpu/drm/mga/mga_irq.c
+++ b/drivers/gpu/drm/mga/mga_irq.c
@@ -43,7 +43,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
if (pipe != 0)
return 0;
- return atomic_read(&dev_priv->vbl_received);
+ return atomic_read_wrap(&dev_priv->vbl_received);
}
@@ -59,7 +59,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
/* VBLANK interrupt */
if (status & MGA_VLINEPEN) {
MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR);
- atomic_inc(&dev_priv->vbl_received);
+ atomic_inc_wrap(&dev_priv->vbl_received);
drm_handle_vblank(dev, 0);
handled = 1;
}
@@ -78,7 +78,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
if ((prim_start & ~0x03) != (prim_end & ~0x03))
MGA_WRITE(MGA_PRIMEND, prim_end);
- atomic_inc(&dev_priv->last_fence_retired);
+ atomic_inc_wrap(&dev_priv->last_fence_retired);
wake_up(&dev_priv->fence_queue);
handled = 1;
}
@@ -129,7 +129,8 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
* using fences.
*/
DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * HZ,
- (((cur_fence = atomic_read(&dev_priv->last_fence_retired))
+ (((cur_fence = atomic_read_wrap(&dev_priv->
+ last_fence_retired))
- *sequence) <= (1 << 23)));
*sequence = cur_fence;
diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
index 04270f5..f74daa3 100644
--- a/drivers/gpu/drm/qxl/qxl_cmd.c
+++ b/drivers/gpu/drm/qxl/qxl_cmd.c
@@ -285,27 +285,27 @@ static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port,
int ret;
mutex_lock(&qdev->async_io_mutex);
- irq_num = atomic_read(&qdev->irq_received_io_cmd);
+ irq_num = atomic_read_wrap(&qdev->irq_received_io_cmd);
if (qdev->last_sent_io_cmd > irq_num) {
if (intr)
ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+ atomic_read_wrap(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
else
ret = wait_event_timeout(qdev->io_cmd_event,
- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+ atomic_read_wrap(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
/* 0 is timeout, just bail the "hw" has gone away */
if (ret <= 0)
goto out;
- irq_num = atomic_read(&qdev->irq_received_io_cmd);
+ irq_num = atomic_read_wrap(&qdev->irq_received_io_cmd);
}
outb(val, addr);
qdev->last_sent_io_cmd = irq_num + 1;
if (intr)
ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+ atomic_read_wrap(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
else
ret = wait_event_timeout(qdev->io_cmd_event,
- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+ atomic_read_wrap(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
out:
if (ret > 0)
ret = 0;
diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
index 6911b8c..73c1448 100644
--- a/drivers/gpu/drm/qxl/qxl_debugfs.c
+++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
@@ -42,10 +42,10 @@ qxl_debugfs_irq_received(struct seq_file *m, void *data)
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct qxl_device *qdev = node->minor->dev->dev_private;
- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
+ seq_printf(m, "%d\n", atomic_read_wrap(&qdev->irq_received));
+ seq_printf(m, "%d\n", atomic_read_wrap(&qdev->irq_received_display));
+ seq_printf(m, "%d\n", atomic_read_wrap(&qdev->irq_received_cursor));
+ seq_printf(m, "%d\n", atomic_read_wrap(&qdev->irq_received_io_cmd));
seq_printf(m, "%d\n", qdev->irq_received_error);
return 0;
}
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 5f3e5ad..f49d8f4 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -293,10 +293,10 @@ struct qxl_device {
unsigned int last_sent_io_cmd;
/* interrupt handling */
- atomic_t irq_received;
- atomic_t irq_received_display;
- atomic_t irq_received_cursor;
- atomic_t irq_received_io_cmd;
+ atomic_wrap_t irq_received;
+ atomic_wrap_t irq_received_display;
+ atomic_wrap_t irq_received_cursor;
+ atomic_wrap_t irq_received_io_cmd;
unsigned irq_received_error;
wait_queue_head_t display_event;
wait_queue_head_t cursor_event;
diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
index 0bf1e20..7a1c710 100644
--- a/drivers/gpu/drm/qxl/qxl_irq.c
+++ b/drivers/gpu/drm/qxl/qxl_irq.c
@@ -36,19 +36,19 @@ irqreturn_t qxl_irq_handler(int irq, void *arg)
if (!pending)
return IRQ_NONE;
- atomic_inc(&qdev->irq_received);
+ atomic_inc_wrap(&qdev->irq_received);
if (pending & QXL_INTERRUPT_DISPLAY) {
- atomic_inc(&qdev->irq_received_display);
+ atomic_inc_wrap(&qdev->irq_received_display);
wake_up_all(&qdev->display_event);
qxl_queue_garbage_collect(qdev, false);
}
if (pending & QXL_INTERRUPT_CURSOR) {
- atomic_inc(&qdev->irq_received_cursor);
+ atomic_inc_wrap(&qdev->irq_received_cursor);
wake_up_all(&qdev->cursor_event);
}
if (pending & QXL_INTERRUPT_IO_CMD) {
- atomic_inc(&qdev->irq_received_io_cmd);
+ atomic_inc_wrap(&qdev->irq_received_io_cmd);
wake_up_all(&qdev->io_cmd_event);
}
if (pending & QXL_INTERRUPT_ERROR) {
@@ -85,10 +85,10 @@ int qxl_irq_init(struct qxl_device *qdev)
init_waitqueue_head(&qdev->io_cmd_event);
INIT_WORK(&qdev->client_monitors_config_work,
qxl_client_monitors_config_work_func);
- atomic_set(&qdev->irq_received, 0);
- atomic_set(&qdev->irq_received_display, 0);
- atomic_set(&qdev->irq_received_cursor, 0);
- atomic_set(&qdev->irq_received_io_cmd, 0);
+ atomic_set_wrap(&qdev->irq_received, 0);
+ atomic_set_wrap(&qdev->irq_received_display, 0);
+ atomic_set_wrap(&qdev->irq_received_cursor, 0);
+ atomic_set_wrap(&qdev->irq_received_io_cmd, 0);
qdev->irq_received_error = 0;
ret = drm_irq_install(qdev->ddev, qdev->ddev->pdev->irq);
qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
index 14fd83b5f..7d68759 100644
--- a/drivers/gpu/drm/r128/r128_cce.c
+++ b/drivers/gpu/drm/r128/r128_cce.c
@@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
/* GH: Simple idle check.
*/
- atomic_set(&dev_priv->idle_count, 0);
+ atomic_set_wrap(&dev_priv->idle_count, 0);
/* We don't support anything other than bus-mastering ring mode,
* but the ring can be in either AGP or PCI space for the ring
diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h
index 09143b8..c3b5234 100644
--- a/drivers/gpu/drm/r128/r128_drv.h
+++ b/drivers/gpu/drm/r128/r128_drv.h
@@ -93,14 +93,14 @@ typedef struct drm_r128_private {
int is_pci;
unsigned long cce_buffers_offset;
- atomic_t idle_count;
+ atomic_wrap_t idle_count;
int page_flipping;
int current_page;
u32 crtc_offset;
u32 crtc_offset_cntl;
- atomic_t vbl_received;
+ atomic_wrap_t vbl_received;
u32 color_fmt;
unsigned int front_offset;
diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c
index 9730f49..1dbe534 100644
--- a/drivers/gpu/drm/r128/r128_irq.c
+++ b/drivers/gpu/drm/r128/r128_irq.c
@@ -41,7 +41,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
if (pipe != 0)
return 0;
- return atomic_read(&dev_priv->vbl_received);
+ return atomic_read_wrap(&dev_priv->vbl_received);
}
irqreturn_t r128_driver_irq_handler(int irq, void *arg)
@@ -55,7 +55,7 @@ irqreturn_t r128_driver_irq_handler(int irq, void *arg)
/* VBLANK interrupt */
if (status & R128_CRTC_VBLANK_INT) {
R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
- atomic_inc(&dev_priv->vbl_received);
+ atomic_inc_wrap(&dev_priv->vbl_received);
drm_handle_vblank(dev, 0);
return IRQ_HANDLED;
}
diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c
index 8fd2d9f..bd88dca 100644
--- a/drivers/gpu/drm/r128/r128_state.c
+++ b/drivers/gpu/drm/r128/r128_state.c
@@ -320,10 +320,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv,
static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv)
{
- if (atomic_read(&dev_priv->idle_count) == 0)
+ if (atomic_read_wrap(&dev_priv->idle_count) == 0)
r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
else
- atomic_set(&dev_priv->idle_count, 0);
+ atomic_set_wrap(&dev_priv->idle_count, 0);
}
#endif
diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
index 286a785..8100a59 100644
--- a/drivers/gpu/drm/via/via_drv.h
+++ b/drivers/gpu/drm/via/via_drv.h
@@ -53,7 +53,7 @@ typedef struct drm_via_ring_buffer {
typedef uint32_t maskarray_t[5];
typedef struct drm_via_irq {
- atomic_t irq_received;
+ atomic_wrap_t irq_received;
uint32_t pending_mask;
uint32_t enable_mask;
wait_queue_head_t irq_queue;
@@ -77,7 +77,7 @@ typedef struct drm_via_private {
struct timeval last_vblank;
int last_vblank_valid;
unsigned usec_per_vblank;
- atomic_t vbl_received;
+ atomic_wrap_t vbl_received;
drm_via_state_t hc_state;
char pci_buf[VIA_PCI_BUF_SIZE];
const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
index ea8172c..c8f893f 100644
--- a/drivers/gpu/drm/via/via_irq.c
+++ b/drivers/gpu/drm/via/via_irq.c
@@ -102,7 +102,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
if (pipe != 0)
return 0;
- return atomic_read(&dev_priv->vbl_received);
+ return atomic_read_wrap(&dev_priv->vbl_received);
}
irqreturn_t via_driver_irq_handler(int irq, void *arg)
@@ -117,8 +117,8 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
status = VIA_READ(VIA_REG_INTERRUPT);
if (status & VIA_IRQ_VBLANK_PENDING) {
- atomic_inc(&dev_priv->vbl_received);
- if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
+ atomic_inc_wrap(&dev_priv->vbl_received);
+ if (!(atomic_read_wrap(&dev_priv->vbl_received) & 0x0F)) {
do_gettimeofday(&cur_vblank);
if (dev_priv->last_vblank_valid) {
dev_priv->usec_per_vblank =
@@ -128,7 +128,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
dev_priv->last_vblank = cur_vblank;
dev_priv->last_vblank_valid = 1;
}
- if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
+ if (!(atomic_read_wrap(&dev_priv->vbl_received) & 0xFF)) {
DRM_DEBUG("US per vblank is: %u\n",
dev_priv->usec_per_vblank);
}
@@ -138,7 +138,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
for (i = 0; i < dev_priv->num_irqs; ++i) {
if (status & cur_irq->pending_mask) {
- atomic_inc(&cur_irq->irq_received);
+ atomic_inc_wrap(&cur_irq->irq_received);
wake_up(&cur_irq->irq_queue);
handled = 1;
if (dev_priv->irq_map[drm_via_irq_dma0_td] == i)
@@ -243,11 +243,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence
DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
((VIA_READ(masks[irq][2]) & masks[irq][3]) ==
masks[irq][4]));
- cur_irq_sequence = atomic_read(&cur_irq->irq_received);
+ cur_irq_sequence = atomic_read_wrap(&cur_irq->irq_received);
} else {
DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
(((cur_irq_sequence =
- atomic_read(&cur_irq->irq_received)) -
+ atomic_read_wrap(&cur_irq->irq_received)) -
*sequence) <= (1 << 23)));
}
*sequence = cur_irq_sequence;
@@ -285,7 +285,7 @@ void via_driver_irq_preinstall(struct drm_device *dev)
}
for (i = 0; i < dev_priv->num_irqs; ++i) {
- atomic_set(&cur_irq->irq_received, 0);
+ atomic_set_wrap(&cur_irq->irq_received, 0);
cur_irq->enable_mask = dev_priv->irq_masks[i][0];
cur_irq->pending_mask = dev_priv->irq_masks[i][1];
init_waitqueue_head(&cur_irq->irq_queue);
@@ -367,7 +367,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv)
switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) {
case VIA_IRQ_RELATIVE:
irqwait->request.sequence +=
- atomic_read(&cur_irq->irq_received);
+ atomic_read_wrap(&cur_irq->irq_received);
irqwait->request.type &= ~_DRM_VBLANK_RELATIVE;
case VIA_IRQ_ABSOLUTE:
break;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 1e59a48..37ff30d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -439,7 +439,7 @@ struct vmw_private {
* Fencing and IRQs.
*/
- atomic_t marker_seq;
+ atomic_wrap_t marker_seq;
wait_queue_head_t fence_queue;
wait_queue_head_t fifo_queue;
spinlock_t waiter_lock;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index b6a0806..7c01c13 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -156,7 +156,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
(unsigned int) min,
(unsigned int) fifo->capabilities);
- atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
+ atomic_set_wrap(&dev_priv->marker_seq, dev_priv->last_read_seqno);
vmw_mmio_write(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
vmw_marker_queue_init(&fifo->marker_queue);
@@ -544,7 +544,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
fm = vmw_fifo_reserve(dev_priv, bytes);
if (unlikely(fm == NULL)) {
- *seqno = atomic_read(&dev_priv->marker_seq);
+ *seqno = atomic_read_wrap(&dev_priv->marker_seq);
ret = -ENOMEM;
(void)vmw_fallback_wait(dev_priv, false, true, *seqno,
false, 3*HZ);
@@ -552,7 +552,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
}
do {
- *seqno = atomic_add_return(1, &dev_priv->marker_seq);
+ *seqno = atomic_add_return_wrap(1, &dev_priv->marker_seq);
} while (*seqno == 0);
if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
index 0c7e172..1f764d3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
@@ -103,7 +103,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv,
* emitted. Then the fence is stale and signaled.
*/
- ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
+ ret = ((atomic_read_wrap(&dev_priv->marker_seq) - seqno)
> VMW_FENCE_WRAP);
return ret;
@@ -142,7 +142,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
}
}
- signal_seq = atomic_read(&dev_priv->marker_seq);
+ signal_seq = atomic_read_wrap(&dev_priv->marker_seq);
ret = 0;
for (;;) {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
index efd1ffd..3cb80ad 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
@@ -135,7 +135,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv,
while (!vmw_lag_lt(queue, us)) {
spin_lock(&queue->lock);
if (list_empty(&queue->head))
- seqno = atomic_read(&dev_priv->marker_seq);
+ seqno = atomic_read_wrap(&dev_priv->marker_seq);
else {
marker = list_first_entry(&queue->head,
struct vmw_marker, head);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 2b89c70..f0ccf7e 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2645,7 +2645,7 @@ EXPORT_SYMBOL_GPL(hid_ignore);
int hid_add_device(struct hid_device *hdev)
{
- static atomic_t id = ATOMIC_INIT(0);
+ static atomic_wrap_t id = ATOMIC_INIT(0);
int ret;
if (WARN_ON(hdev->status & HID_STAT_ADDED))
@@ -2689,7 +2689,7 @@ int hid_add_device(struct hid_device *hdev)
/* XXX hack, any other cleaner solution after the driver core
* is converted to allow more than 20 bytes as the device name? */
dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
- hdev->vendor, hdev->product, atomic_inc_return(&id));
+ hdev->vendor, hdev->product, atomic_inc_return_wrap(&id));
hid_debug_register(hdev, dev_name(&hdev->dev));
ret = device_add(&hdev->dev);
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 16f91c8..6adbe2b 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -396,8 +396,8 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
unsigned long flags;
int ret = 0;
- next_gpadl_handle =
- (atomic_inc_return(&vmbus_connection.next_gpadl_handle) - 1);
+ next_gpadl_handle = (atomic_inc_return_wrap(
+ &vmbus_connection.next_gpadl_handle) - 1);
ret = create_gpadl_header(kbuffer, size, &msginfo);
if (ret)
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index fdf8da9..7e3b886 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -482,7 +482,7 @@ MODULE_PARM_DESC(hot_add, "If set attempt memory hot_add");
module_param(pressure_report_delay, uint, (S_IRUGO | S_IWUSR));
MODULE_PARM_DESC(pressure_report_delay, "Delay in secs in reporting pressure");
-static atomic_t trans_id = ATOMIC_INIT(0);
+static atomic_wrap_t trans_id = ATOMIC_INIT(0);
static int dm_ring_size = (5 * PAGE_SIZE);
@@ -1010,7 +1010,7 @@ static void hot_add_req(struct work_struct *dummy)
pr_info("Memory hot add failed\n");
dm->state = DM_INITIALIZED;
- resp.hdr.trans_id = atomic_inc_return(&trans_id);
+ resp.hdr.trans_id = atomic_inc_return_wrap(&trans_id);
vmbus_sendpacket(dm->dev->channel, &resp,
sizeof(struct dm_hot_add_response),
(unsigned long)NULL,
@@ -1089,7 +1089,7 @@ static void post_status(struct hv_dynmem_device *dm)
memset(&status, 0, sizeof(struct dm_status));
status.hdr.type = DM_STATUS_REPORT;
status.hdr.size = sizeof(struct dm_status);
- status.hdr.trans_id = atomic_inc_return(&trans_id);
+ status.hdr.trans_id = atomic_inc_return_wrap(&trans_id);
/*
* The host expects the guest to report free and committed memory.
@@ -1113,7 +1113,7 @@ static void post_status(struct hv_dynmem_device *dm)
* send the status. This can happen if we were interrupted
* after we picked our transaction ID.
*/
- if (status.hdr.trans_id != atomic_read(&trans_id))
+ if (status.hdr.trans_id != atomic_read_wrap(&trans_id))
return;
/*
@@ -1257,7 +1257,8 @@ static void balloon_up(struct work_struct *dummy)
*/
do {
- bl_resp->hdr.trans_id = atomic_inc_return(&trans_id);
+ bl_resp->hdr.trans_id =
+ atomic_inc_return_wrap(&trans_id);
ret = vmbus_sendpacket(dm_device.dev->channel,
bl_resp,
bl_resp->hdr.size,
@@ -1303,7 +1304,7 @@ static void balloon_down(struct hv_dynmem_device *dm,
memset(&resp, 0, sizeof(struct dm_unballoon_response));
resp.hdr.type = DM_UNBALLOON_RESPONSE;
- resp.hdr.trans_id = atomic_inc_return(&trans_id);
+ resp.hdr.trans_id = atomic_inc_return_wrap(&trans_id);
resp.hdr.size = sizeof(struct dm_unballoon_response);
vmbus_sendpacket(dm_device.dev->channel, &resp,
@@ -1363,7 +1364,7 @@ static void version_resp(struct hv_dynmem_device *dm,
memset(&version_req, 0, sizeof(struct dm_version_request));
version_req.hdr.type = DM_VERSION_REQUEST;
version_req.hdr.size = sizeof(struct dm_version_request);
- version_req.hdr.trans_id = atomic_inc_return(&trans_id);
+ version_req.hdr.trans_id = atomic_inc_return_wrap(&trans_id);
version_req.version.version = dm->next_version;
/*
@@ -1550,7 +1551,7 @@ static int balloon_probe(struct hv_device *dev,
memset(&version_req, 0, sizeof(struct dm_version_request));
version_req.hdr.type = DM_VERSION_REQUEST;
version_req.hdr.size = sizeof(struct dm_version_request);
- version_req.hdr.trans_id = atomic_inc_return(&trans_id);
+ version_req.hdr.trans_id = atomic_inc_return_wrap(&trans_id);
version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN10;
version_req.is_last_attempt = 0;
@@ -1581,7 +1582,7 @@ static int balloon_probe(struct hv_device *dev,
memset(&cap_msg, 0, sizeof(struct dm_capabilities));
cap_msg.hdr.type = DM_CAPABILITIES_REPORT;
cap_msg.hdr.size = sizeof(struct dm_capabilities);
- cap_msg.hdr.trans_id = atomic_inc_return(&trans_id);
+ cap_msg.hdr.trans_id = atomic_inc_return_wrap(&trans_id);
cap_msg.caps.cap_bits.balloon = 1;
cap_msg.caps.cap_bits.hot_add = 1;
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index a5b4442..a1f4de6 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -567,7 +567,7 @@ enum vmbus_connect_state {
struct vmbus_connection {
enum vmbus_connect_state conn_state;
- atomic_t next_gpadl_handle;
+ atomic_wrap_t next_gpadl_handle;
struct completion unload_event;
/*
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index a2fdbb7..4a911ce 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -170,7 +170,7 @@ struct sht15_data {
int supply_uv;
bool supply_uv_valid;
struct work_struct update_supply_work;
- atomic_t interrupt_handled;
+ atomic_wrap_t interrupt_handled;
};
/**
@@ -530,13 +530,13 @@ static int sht15_measurement(struct sht15_data *data,
ret = gpio_direction_input(data->pdata->gpio_data);
if (ret)
return ret;
- atomic_set(&data->interrupt_handled, 0);
+ atomic_set_wrap(&data->interrupt_handled, 0);
enable_irq(gpio_to_irq(data->pdata->gpio_data));
if (gpio_get_value(data->pdata->gpio_data) == 0) {
disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
/* Only relevant if the interrupt hasn't occurred. */
- if (!atomic_read(&data->interrupt_handled))
+ if (!atomic_read_wrap(&data->interrupt_handled))
schedule_work(&data->read_work);
}
ret = wait_event_timeout(data->wait_queue,
@@ -808,7 +808,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d)
/* First disable the interrupt */
disable_irq_nosync(irq);
- atomic_inc(&data->interrupt_handled);
+ atomic_inc_wrap(&data->interrupt_handled);
/* Then schedule a reading work struct */
if (data->state != SHT15_READING_NOTHING)
schedule_work(&data->read_work);
@@ -830,11 +830,11 @@ static void sht15_bh_read_data(struct work_struct *work_s)
* If not, then start the interrupt again - care here as could
* have gone low in meantime so verify it hasn't!
*/
- atomic_set(&data->interrupt_handled, 0);
+ atomic_set_wrap(&data->interrupt_handled, 0);
enable_irq(gpio_to_irq(data->pdata->gpio_data));
/* If still not occurred or another handler was scheduled */
if (gpio_get_value(data->pdata->gpio_data)
- || atomic_read(&data->interrupt_handled))
+ || atomic_read_wrap(&data->interrupt_handled))
return;
}
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index c995255..6532e91 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -115,7 +115,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS]
struct cm_counter_group {
struct kobject obj;
- atomic_long_t counter[CM_ATTR_COUNT];
+ atomic_long_wrap_t counter[CM_ATTR_COUNT];
};
struct cm_counter_attribute {
@@ -1476,7 +1476,7 @@ static void cm_dup_req_handler(struct cm_work *work,
struct ib_mad_send_buf *msg = NULL;
int ret;
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+ atomic_long_inc_wrap(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_REQ_COUNTER]);
/* Quick state check to discard duplicate REQs. */
@@ -1884,7 +1884,7 @@ static void cm_dup_rep_handler(struct cm_work *work)
if (!cm_id_priv)
return;
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+ atomic_long_inc_wrap(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_REP_COUNTER]);
ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
if (ret)
@@ -2051,8 +2051,9 @@ static int cm_rtu_handler(struct cm_work *work)
if (cm_id_priv->id.state != IB_CM_REP_SENT &&
cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) {
spin_unlock_irq(&cm_id_priv->lock);
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
- counter[CM_RTU_COUNTER]);
+ atomic_long_inc_wrap(&work->port->
+ counter_group[CM_RECV_DUPLICATES].
+ counter[CM_RTU_COUNTER]);
goto out;
}
cm_id_priv->id.state = IB_CM_ESTABLISHED;
@@ -2234,8 +2235,9 @@ static int cm_dreq_handler(struct cm_work *work)
cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id,
dreq_msg->local_comm_id);
if (!cm_id_priv) {
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
- counter[CM_DREQ_COUNTER]);
+ atomic_long_inc_wrap(&work->port->
+ counter_group[CM_RECV_DUPLICATES].
+ counter[CM_DREQ_COUNTER]);
cm_issue_drep(work->port, work->mad_recv_wc);
return -EINVAL;
}
@@ -2259,8 +2261,9 @@ static int cm_dreq_handler(struct cm_work *work)
case IB_CM_MRA_REP_RCVD:
break;
case IB_CM_TIMEWAIT:
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
- counter[CM_DREQ_COUNTER]);
+ atomic_long_inc_wrap(&work->port->
+ counter_group[CM_RECV_DUPLICATES].
+ counter[CM_DREQ_COUNTER]);
if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
goto unlock;
@@ -2273,8 +2276,9 @@ static int cm_dreq_handler(struct cm_work *work)
cm_free_msg(msg);
goto deref;
case IB_CM_DREQ_RCVD:
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
- counter[CM_DREQ_COUNTER]);
+ atomic_long_inc_wrap(&work->port->
+ counter_group[CM_RECV_DUPLICATES].
+ counter[CM_DREQ_COUNTER]);
goto unlock;
default:
goto unlock;
@@ -2640,7 +2644,7 @@ static int cm_mra_handler(struct cm_work *work)
ib_modify_mad(cm_id_priv->av.port->mad_agent,
cm_id_priv->msg, timeout)) {
if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
- atomic_long_inc(&work->port->
+ atomic_long_inc_wrap(&work->port->
counter_group[CM_RECV_DUPLICATES].
counter[CM_MRA_COUNTER]);
goto out;
@@ -2649,8 +2653,9 @@ static int cm_mra_handler(struct cm_work *work)
break;
case IB_CM_MRA_REQ_RCVD:
case IB_CM_MRA_REP_RCVD:
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
- counter[CM_MRA_COUNTER]);
+ atomic_long_inc_wrap(&work->port->
+ counter_group[CM_RECV_DUPLICATES].
+ counter[CM_MRA_COUNTER]);
/* fall through */
default:
goto out;
@@ -2811,8 +2816,9 @@ static int cm_lap_handler(struct cm_work *work)
case IB_CM_LAP_IDLE:
break;
case IB_CM_MRA_LAP_SENT:
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
- counter[CM_LAP_COUNTER]);
+ atomic_long_inc_wrap(&work->port->
+ counter_group[CM_RECV_DUPLICATES].
+ counter[CM_LAP_COUNTER]);
if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
goto unlock;
@@ -2827,7 +2833,8 @@ static int cm_lap_handler(struct cm_work *work)
cm_free_msg(msg);
goto deref;
case IB_CM_LAP_RCVD:
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+ atomic_long_inc_wrap(&work->port->
+ counter_group[CM_RECV_DUPLICATES].
counter[CM_LAP_COUNTER]);
goto unlock;
default:
@@ -3113,7 +3120,8 @@ static int cm_sidr_req_handler(struct cm_work *work)
cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv);
if (cur_cm_id_priv) {
spin_unlock_irq(&cm.lock);
- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+ atomic_long_inc_wrap(&work->port->
+ counter_group[CM_RECV_DUPLICATES].
counter[CM_SIDR_REQ_COUNTER]);
goto out; /* Duplicate message. */
}
@@ -3327,10 +3335,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent,
if (!msg->context[0] && (attr_index != CM_REJ_COUNTER))
msg->retries = 1;
- atomic_long_add(1 + msg->retries,
+ atomic_long_add_wrap(1 + msg->retries,
&port->counter_group[CM_XMIT].counter[attr_index]);
if (msg->retries)
- atomic_long_add(msg->retries,
+ atomic_long_add_wrap(msg->retries,
&port->counter_group[CM_XMIT_RETRIES].
counter[attr_index]);
@@ -3557,7 +3565,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent,
}
attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id);
- atomic_long_inc(&port->counter_group[CM_RECV].
+ atomic_long_inc_wrap(&port->counter_group[CM_RECV].
counter[attr_id - CM_ATTR_ID_OFFSET]);
work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths,
@@ -3764,7 +3772,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
cm_attr = container_of(attr, struct cm_counter_attribute, attr);
return sprintf(buf, "%ld\n",
- atomic_long_read(&group->counter[cm_attr->index]));
+ atomic_long_read_wrap(&group->counter[cm_attr->index]));
}
static const struct sysfs_ops cm_counter_ops = {
diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
index cdbb1f1..f714a6f 100644
--- a/drivers/infiniband/core/fmr_pool.c
+++ b/drivers/infiniband/core/fmr_pool.c
@@ -98,8 +98,8 @@ struct ib_fmr_pool {
struct task_struct *thread;
- atomic_t req_ser;
- atomic_t flush_ser;
+ atomic_wrap_t req_ser;
+ atomic_wrap_t flush_ser;
wait_queue_head_t force_wait;
};
@@ -179,10 +179,11 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
struct ib_fmr_pool *pool = pool_ptr;
do {
- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) {
+ if (atomic_read_wrap(&pool->flush_ser) -
+ atomic_read_wrap(&pool->req_ser) < 0) {
ib_fmr_batch_release(pool);
- atomic_inc(&pool->flush_ser);
+ atomic_inc_wrap(&pool->flush_ser);
wake_up_interruptible(&pool->force_wait);
if (pool->flush_function)
@@ -190,7 +191,8 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
}
set_current_state(TASK_INTERRUPTIBLE);
- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 &&
+ if (atomic_read_wrap(&pool->flush_ser) -
+ atomic_read_wrap(&pool->req_ser) >= 0 &&
!kthread_should_stop())
schedule();
__set_current_state(TASK_RUNNING);
@@ -262,8 +264,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
pool->dirty_watermark = params->dirty_watermark;
pool->dirty_len = 0;
spin_lock_init(&pool->pool_lock);
- atomic_set(&pool->req_ser, 0);
- atomic_set(&pool->flush_ser, 0);
+ atomic_set_wrap(&pool->req_ser, 0);
+ atomic_set_wrap(&pool->flush_ser, 0);
init_waitqueue_head(&pool->force_wait);
pool->thread = kthread_run(ib_fmr_cleanup_thread,
@@ -388,11 +390,12 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
}
spin_unlock_irq(&pool->pool_lock);
- serial = atomic_inc_return(&pool->req_ser);
+ serial = atomic_inc_return_wrap(&pool->req_ser);
wake_up_process(pool->thread);
if (wait_event_interruptible(pool->force_wait,
- atomic_read(&pool->flush_ser) - serial >= 0))
+ atomic_read_wrap(&pool->flush_ser) -
+ serial >= 0))
return -EINTR;
return 0;
@@ -502,7 +505,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr)
} else {
list_add_tail(&fmr->list, &pool->dirty_list);
if (++pool->dirty_len >= pool->dirty_watermark) {
- atomic_inc(&pool->req_ser);
+ atomic_inc_wrap(&pool->req_ser);
wake_up_process(pool->thread);
}
}
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index 80e2774..107629d 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -266,7 +266,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
int err;
struct fw_ri_tpte tpt;
u32 stag_idx;
- static atomic_t key;
+ static atomic_wrap_t key;
if (c4iw_fatal_error(rdev))
return -EIO;
@@ -287,7 +287,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
if (rdev->stats.stag.cur > rdev->stats.stag.max)
rdev->stats.stag.max = rdev->stats.stag.cur;
mutex_unlock(&rdev->stats.lock);
- *stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff);
+ *stag = (stag_idx << 8) | (atomic_inc_return_wrap(&key) & 0xff);
}
PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n",
__func__, stag_state, type, pdid, stag_idx);
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index 1672907..baa0570 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -99,7 +99,7 @@ __be64 mlx4_ib_gen_node_guid(void)
__be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
{
- return cpu_to_be64(atomic_inc_return(&ctx->tid)) |
+ return cpu_to_be64(atomic_inc_return_wrap(&ctx->tid)) |
cpu_to_be64(0xff00000000000000LL);
}
diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c
index a21d37f..8e68763 100644
--- a/drivers/infiniband/hw/mlx4/mcg.c
+++ b/drivers/infiniband/hw/mlx4/mcg.c
@@ -1043,7 +1043,7 @@ int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx)
{
char name[20];
- atomic_set(&ctx->tid, 0);
+ atomic_set_wrap(&ctx->tid, 0);
sprintf(name, "mlx4_ib_mcg%d", ctx->port);
ctx->mcg_wq = alloc_ordered_workqueue(name, WQ_MEM_RECLAIM);
if (!ctx->mcg_wq)
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index 35141f4..867a6e9 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -457,7 +457,7 @@ struct mlx4_ib_demux_ctx {
struct list_head mcg_mgid0_list;
struct workqueue_struct *mcg_wq;
struct mlx4_ib_demux_pv_ctx **tun;
- atomic_t tid;
+ atomic_wrap_t tid;
int flushing; /* flushing the work queue */
};
diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
index 35cbb17..8b516e3 100644
--- a/drivers/infiniband/hw/nes/nes.c
+++ b/drivers/infiniband/hw/nes/nes.c
@@ -97,7 +97,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
LIST_HEAD(nes_adapter_list);
static LIST_HEAD(nes_dev_list);
-atomic_t qps_destroyed;
+atomic_wrap_t qps_destroyed;
static unsigned int ee_flsh_adapter;
static unsigned int sysfs_nonidx_addr;
@@ -268,7 +268,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r
struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
struct nes_adapter *nesadapter = nesdev->nesadapter;
- atomic_inc(&qps_destroyed);
+ atomic_inc_wrap(&qps_destroyed);
/* Free the control structures */
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index e7430c9..d6e45c5d 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -180,17 +180,17 @@ extern unsigned int nes_debug_level;
extern unsigned int wqm_quanta;
extern struct list_head nes_adapter_list;
-extern atomic_t cm_connects;
-extern atomic_t cm_accepts;
-extern atomic_t cm_disconnects;
-extern atomic_t cm_closes;
-extern atomic_t cm_connecteds;
-extern atomic_t cm_connect_reqs;
-extern atomic_t cm_rejects;
-extern atomic_t mod_qp_timouts;
-extern atomic_t qps_created;
-extern atomic_t qps_destroyed;
-extern atomic_t sw_qps_destroyed;
+extern atomic_wrap_t cm_connects;
+extern atomic_wrap_t cm_accepts;
+extern atomic_wrap_t cm_disconnects;
+extern atomic_wrap_t cm_closes;
+extern atomic_wrap_t cm_connecteds;
+extern atomic_wrap_t cm_connect_reqs;
+extern atomic_wrap_t cm_rejects;
+extern atomic_wrap_t mod_qp_timouts;
+extern atomic_wrap_t qps_created;
+extern atomic_wrap_t qps_destroyed;
+extern atomic_wrap_t sw_qps_destroyed;
extern u32 mh_detected;
extern u32 mh_pauses_sent;
extern u32 cm_packets_sent;
@@ -199,16 +199,16 @@ extern u32 cm_packets_created;
extern u32 cm_packets_received;
extern u32 cm_packets_dropped;
extern u32 cm_packets_retrans;
-extern atomic_t cm_listens_created;
-extern atomic_t cm_listens_destroyed;
+extern atomic_wrap_t cm_listens_created;
+extern atomic_wrap_t cm_listens_destroyed;
extern u32 cm_backlog_drops;
-extern atomic_t cm_loopbacks;
-extern atomic_t cm_nodes_created;
-extern atomic_t cm_nodes_destroyed;
-extern atomic_t cm_accel_dropped_pkts;
-extern atomic_t cm_resets_recvd;
-extern atomic_t pau_qps_created;
-extern atomic_t pau_qps_destroyed;
+extern atomic_wrap_t cm_loopbacks;
+extern atomic_wrap_t cm_nodes_created;
+extern atomic_wrap_t cm_nodes_destroyed;
+extern atomic_wrap_t cm_accel_dropped_pkts;
+extern atomic_wrap_t cm_resets_recvd;
+extern atomic_wrap_t pau_qps_created;
+extern atomic_wrap_t pau_qps_destroyed;
extern u32 int_mod_timer_init;
extern u32 int_mod_cq_depth_256;
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 57db9b3..925cb6b 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -69,14 +69,14 @@ u32 cm_packets_dropped;
u32 cm_packets_retrans;
u32 cm_packets_created;
u32 cm_packets_received;
-atomic_t cm_listens_created;
-atomic_t cm_listens_destroyed;
+atomic_wrap_t cm_listens_created;
+atomic_wrap_t cm_listens_destroyed;
u32 cm_backlog_drops;
-atomic_t cm_loopbacks;
-atomic_t cm_nodes_created;
-atomic_t cm_nodes_destroyed;
-atomic_t cm_accel_dropped_pkts;
-atomic_t cm_resets_recvd;
+atomic_wrap_t cm_loopbacks;
+atomic_wrap_t cm_nodes_created;
+atomic_wrap_t cm_nodes_destroyed;
+atomic_wrap_t cm_accel_dropped_pkts;
+atomic_wrap_t cm_resets_recvd;
static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
@@ -150,13 +150,13 @@ static const struct nes_cm_ops nes_cm_api = {
static struct nes_cm_core *g_cm_core;
-atomic_t cm_connects;
-atomic_t cm_accepts;
-atomic_t cm_disconnects;
-atomic_t cm_closes;
-atomic_t cm_connecteds;
-atomic_t cm_connect_reqs;
-atomic_t cm_rejects;
+atomic_wrap_t cm_connects;
+atomic_wrap_t cm_accepts;
+atomic_wrap_t cm_disconnects;
+atomic_wrap_t cm_closes;
+atomic_wrap_t cm_connecteds;
+atomic_wrap_t cm_connect_reqs;
+atomic_wrap_t cm_rejects;
int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
{
@@ -1333,7 +1333,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
kfree(listener);
listener = NULL;
ret = 0;
- atomic_inc(&cm_listens_destroyed);
+ atomic_inc_wrap(&cm_listens_destroyed);
} else {
spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
}
@@ -1537,7 +1537,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
cm_node->rem_mac);
add_hte_node(cm_core, cm_node);
- atomic_inc(&cm_nodes_created);
+ atomic_inc_wrap(&cm_nodes_created);
return cm_node;
}
@@ -1596,7 +1596,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core,
}
atomic_dec(&cm_core->node_cnt);
- atomic_inc(&cm_nodes_destroyed);
+ atomic_inc_wrap(&cm_nodes_destroyed);
nesqp = cm_node->nesqp;
if (nesqp) {
nesqp->cm_node = NULL;
@@ -1660,7 +1660,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
static void drop_packet(struct sk_buff *skb)
{
- atomic_inc(&cm_accel_dropped_pkts);
+ atomic_inc_wrap(&cm_accel_dropped_pkts);
dev_kfree_skb_any(skb);
}
@@ -1723,7 +1723,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
{
int reset = 0; /* whether to send reset in case of err.. */
- atomic_inc(&cm_resets_recvd);
+ atomic_inc_wrap(&cm_resets_recvd);
nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u."
" refcnt=%d\n", cm_node, cm_node->state,
atomic_read(&cm_node->ref_count));
@@ -2369,7 +2369,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
rem_ref_cm_node(cm_node->cm_core, cm_node);
return NULL;
}
- atomic_inc(&cm_loopbacks);
+ atomic_inc_wrap(&cm_loopbacks);
loopbackremotenode->loopbackpartner = cm_node;
loopbackremotenode->tcp_cntxt.rcv_wscale =
NES_CM_DEFAULT_RCV_WND_SCALE;
@@ -2644,7 +2644,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
else {
rem_ref_cm_node(cm_core, cm_node);
- atomic_inc(&cm_accel_dropped_pkts);
+ atomic_inc_wrap(&cm_accel_dropped_pkts);
dev_kfree_skb_any(skb);
}
break;
@@ -2965,7 +2965,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
if ((cm_id) && (cm_id->event_handler)) {
if (issue_disconn) {
- atomic_inc(&cm_disconnects);
+ atomic_inc_wrap(&cm_disconnects);
cm_event.event = IW_CM_EVENT_DISCONNECT;
cm_event.status = disconn_status;
cm_event.local_addr = cm_id->m_local_addr;
@@ -2987,7 +2987,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
}
if (issue_close) {
- atomic_inc(&cm_closes);
+ atomic_inc_wrap(&cm_closes);
nes_disconnect(nesqp, 1);
cm_id->provider_data = nesqp;
@@ -3124,7 +3124,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n",
nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener);
- atomic_inc(&cm_accepts);
+ atomic_inc_wrap(&cm_accepts);
nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
netdev_refcnt_read(nesvnic->netdev));
@@ -3320,7 +3320,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
struct nes_cm_core *cm_core;
u8 *start_buff;
- atomic_inc(&cm_rejects);
+ atomic_inc_wrap(&cm_rejects);
cm_node = (struct nes_cm_node *)cm_id->provider_data;
loopback = cm_node->loopbackpartner;
cm_core = cm_node->cm_core;
@@ -3382,7 +3382,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
ntohs(raddr->sin_port), ntohl(laddr->sin_addr.s_addr),
ntohs(laddr->sin_port));
- atomic_inc(&cm_connects);
+ atomic_inc_wrap(&cm_connects);
nesqp->active_conn = 1;
/* cache the cm_id in the qp */
@@ -3496,7 +3496,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
return err;
}
- atomic_inc(&cm_listens_created);
+ atomic_inc_wrap(&cm_listens_created);
}
cm_id->add_ref(cm_id);
@@ -3603,7 +3603,7 @@ static void cm_event_connected(struct nes_cm_event *event)
if (nesqp->destroyed)
return;
- atomic_inc(&cm_connecteds);
+ atomic_inc_wrap(&cm_connecteds);
nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on"
" local port 0x%04X. jiffies = %lu.\n",
nesqp->hwqp.qp_id, ntohl(raddr->sin_addr.s_addr),
@@ -3788,7 +3788,7 @@ static void cm_event_reset(struct nes_cm_event *event)
cm_id->add_ref(cm_id);
ret = cm_id->event_handler(cm_id, &cm_event);
- atomic_inc(&cm_closes);
+ atomic_inc_wrap(&cm_closes);
cm_event.event = IW_CM_EVENT_CLOSE;
cm_event.status = 0;
cm_event.provider_data = cm_id->provider_data;
@@ -3828,7 +3828,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event)
return;
cm_id = cm_node->cm_id;
- atomic_inc(&cm_connect_reqs);
+ atomic_inc_wrap(&cm_connect_reqs);
nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
cm_node, cm_id, jiffies);
@@ -3877,7 +3877,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event)
return;
cm_id = cm_node->cm_id;
- atomic_inc(&cm_connect_reqs);
+ atomic_inc_wrap(&cm_connect_reqs);
nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
cm_node, cm_id, jiffies);
diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
index 4166452..2022669 100644
--- a/drivers/infiniband/hw/nes/nes_mgt.c
+++ b/drivers/infiniband/hw/nes/nes_mgt.c
@@ -40,8 +40,8 @@
#include "nes.h"
#include "nes_mgt.h"
-atomic_t pau_qps_created;
-atomic_t pau_qps_destroyed;
+atomic_wrap_t pau_qps_created;
+atomic_wrap_t pau_qps_destroyed;
static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic)
{
@@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp)
{
struct sk_buff *skb;
unsigned long flags;
- atomic_inc(&pau_qps_destroyed);
+ atomic_inc_wrap(&pau_qps_destroyed);
/* Free packets that have not yet been forwarded */
/* Lock is acquired by skb_dequeue when removing the skb */
@@ -810,7 +810,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *
cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]);
skb_queue_head_init(&nesqp->pau_list);
spin_lock_init(&nesqp->pau_lock);
- atomic_inc(&pau_qps_created);
+ atomic_inc_wrap(&pau_qps_created);
nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp);
}
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 2b27d13..d516c5e 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -1264,36 +1264,36 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
target_stat_values[++index] = mh_detected;
target_stat_values[++index] = mh_pauses_sent;
target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
- target_stat_values[++index] = atomic_read(&cm_connects);
- target_stat_values[++index] = atomic_read(&cm_accepts);
- target_stat_values[++index] = atomic_read(&cm_disconnects);
- target_stat_values[++index] = atomic_read(&cm_connecteds);
- target_stat_values[++index] = atomic_read(&cm_connect_reqs);
- target_stat_values[++index] = atomic_read(&cm_rejects);
- target_stat_values[++index] = atomic_read(&mod_qp_timouts);
- target_stat_values[++index] = atomic_read(&qps_created);
- target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
- target_stat_values[++index] = atomic_read(&qps_destroyed);
- target_stat_values[++index] = atomic_read(&cm_closes);
+ target_stat_values[++index] = atomic_read_wrap(&cm_connects);
+ target_stat_values[++index] = atomic_read_wrap(&cm_accepts);
+ target_stat_values[++index] = atomic_read_wrap(&cm_disconnects);
+ target_stat_values[++index] = atomic_read_wrap(&cm_connecteds);
+ target_stat_values[++index] = atomic_read_wrap(&cm_connect_reqs);
+ target_stat_values[++index] = atomic_read_wrap(&cm_rejects);
+ target_stat_values[++index] = atomic_read_wrap(&mod_qp_timouts);
+ target_stat_values[++index] = atomic_read_wrap(&qps_created);
+ target_stat_values[++index] = atomic_read_wrap(&sw_qps_destroyed);
+ target_stat_values[++index] = atomic_read_wrap(&qps_destroyed);
+ target_stat_values[++index] = atomic_read_wrap(&cm_closes);
target_stat_values[++index] = cm_packets_sent;
target_stat_values[++index] = cm_packets_bounced;
target_stat_values[++index] = cm_packets_created;
target_stat_values[++index] = cm_packets_received;
target_stat_values[++index] = cm_packets_dropped;
target_stat_values[++index] = cm_packets_retrans;
- target_stat_values[++index] = atomic_read(&cm_listens_created);
- target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
+ target_stat_values[++index] = atomic_read_wrap(&cm_listens_created);
+ target_stat_values[++index] = atomic_read_wrap(&cm_listens_destroyed);
target_stat_values[++index] = cm_backlog_drops;
- target_stat_values[++index] = atomic_read(&cm_loopbacks);
- target_stat_values[++index] = atomic_read(&cm_nodes_created);
- target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
- target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
- target_stat_values[++index] = atomic_read(&cm_resets_recvd);
+ target_stat_values[++index] = atomic_read_wrap(&cm_loopbacks);
+ target_stat_values[++index] = atomic_read_wrap(&cm_nodes_created);
+ target_stat_values[++index] = atomic_read_wrap(&cm_nodes_destroyed);
+ target_stat_values[++index] = atomic_read_wrap(&cm_accel_dropped_pkts);
+ target_stat_values[++index] = atomic_read_wrap(&cm_resets_recvd);
target_stat_values[++index] = nesadapter->free_4kpbl;
target_stat_values[++index] = nesadapter->free_256pbl;
target_stat_values[++index] = int_mod_timer_init;
- target_stat_values[++index] = atomic_read(&pau_qps_created);
- target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
+ target_stat_values[++index] = atomic_read_wrap(&pau_qps_created);
+ target_stat_values[++index] = atomic_read_wrap(&pau_qps_destroyed);
}
/**
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index bd69125..9318f3c 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -46,9 +46,9 @@
#include <rdma/ib_umem.h>
-atomic_t mod_qp_timouts;
-atomic_t qps_created;
-atomic_t sw_qps_destroyed;
+atomic_wrap_t mod_qp_timouts;
+atomic_wrap_t qps_created;
+atomic_wrap_t sw_qps_destroyed;
static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
static int nes_dereg_mr(struct ib_mr *ib_mr);
@@ -1040,7 +1040,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
if (init_attr->create_flags)
return ERR_PTR(-EINVAL);
- atomic_inc(&qps_created);
+ atomic_inc_wrap(&qps_created);
switch (init_attr->qp_type) {
case IB_QPT_RC:
if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) {
@@ -1376,7 +1376,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
struct iw_cm_event cm_event;
int ret = 0;
- atomic_inc(&sw_qps_destroyed);
+ atomic_inc_wrap(&sw_qps_destroyed);
nesqp->destroyed = 1;
/* Blow away the connection if it exists. */
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index 4a2a9e3..2932903 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -527,14 +527,14 @@ EXPORT_SYMBOL(gameport_set_phys);
*/
static void gameport_init_port(struct gameport *gameport)
{
- static atomic_t gameport_no = ATOMIC_INIT(-1);
+ static atomic_wrap_t gameport_no = ATOMIC_INIT(-1);
__module_get(THIS_MODULE);
mutex_init(&gameport->drv_mutex);
device_initialize(&gameport->dev);
dev_set_name(&gameport->dev, "gameport%lu",
- (unsigned long)atomic_inc_return(&gameport_no));
+ (unsigned long)atomic_inc_return_wrap(&gameport_no));
gameport->dev.bus = &gameport_bus;
gameport->dev.release = gameport_release_port;
if (gameport->parent)
diff --git a/drivers/input/input.c b/drivers/input/input.c
index d95c34e..e2a8ffa 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1780,7 +1780,7 @@ EXPORT_SYMBOL_GPL(input_class);
*/
struct input_dev *input_allocate_device(void)
{
- static atomic_t input_no = ATOMIC_INIT(-1);
+ static atomic_wrap_t input_no = ATOMIC_INIT(-1);
struct input_dev *dev;
dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
@@ -1795,7 +1795,7 @@ struct input_dev *input_allocate_device(void)
INIT_LIST_HEAD(&dev->node);
dev_set_name(&dev->dev, "input%lu",
- (unsigned long)atomic_inc_return(&input_no));
+ (unsigned long)atomic_inc_return_wrap(&input_no));
__module_get(THIS_MODULE);
}
diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index 9c0ea36..87acf90 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -1855,7 +1855,7 @@ static int ims_pcu_identify_type(struct ims_pcu *pcu, u8 *device_id)
static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
{
- static atomic_t device_no = ATOMIC_INIT(-1);
+ static atomic_wrap_t device_no = ATOMIC_INIT(-1);
const struct ims_pcu_device_info *info;
int error;
@@ -1886,7 +1886,7 @@ static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
}
/* Device appears to be operable, complete initialization */
- pcu->device_no = atomic_inc_return(&device_no);
+ pcu->device_no = atomic_inc_return_wrap(&device_no);
/*
* PCU-B devices, both GEN_1 and GEN_2 do not have OFN sensor
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 1ca7f55..78db72e 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -512,7 +512,7 @@ static void serio_release_port(struct device *dev)
*/
static void serio_init_port(struct serio *serio)
{
- static atomic_t serio_no = ATOMIC_INIT(-1);
+ static atomic_wrap_t serio_no = ATOMIC_INIT(-1);
__module_get(THIS_MODULE);
@@ -523,7 +523,7 @@ static void serio_init_port(struct serio *serio)
mutex_init(&serio->drv_mutex);
device_initialize(&serio->dev);
dev_set_name(&serio->dev, "serio%lu",
- (unsigned long)atomic_inc_return(&serio_no));
+ (unsigned long)atomic_inc_return_wrap(&serio_no));
serio->dev.bus = &serio_bus;
serio->dev.release = serio_release_port;
serio->dev.groups = serio_device_attr_groups;
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index 71ef5d6..10d7b5b 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -292,7 +292,7 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
{
- static atomic_t serio_raw_no = ATOMIC_INIT(-1);
+ static atomic_wrap_t serio_raw_no = ATOMIC_INIT(-1);
struct serio_raw *serio_raw;
int err;
@@ -303,7 +303,7 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
}
snprintf(serio_raw->name, sizeof(serio_raw->name),
- "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no));
+ "serio_raw%ld", (long)atomic_inc_return_wrap(&serio_raw_no));
kref_init(&serio_raw->kref);
INIT_LIST_HEAD(&serio_raw->client_list);
init_waitqueue_head(&serio_raw->wait);
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 6a2df32..70ef916 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -81,8 +81,8 @@ struct capiminor {
struct capi20_appl *ap;
u32 ncci;
- atomic_t datahandle;
- atomic_t msgid;
+ atomic_wrap_t datahandle;
+ atomic_wrap_t msgid;
struct tty_port port;
int ttyinstop;
@@ -391,7 +391,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)
capimsg_setu16(s, 2, mp->ap->applid);
capimsg_setu8 (s, 4, CAPI_DATA_B3);
capimsg_setu8 (s, 5, CAPI_RESP);
- capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid));
+ capimsg_setu16(s, 6, atomic_inc_return_wrap(&mp->msgid));
capimsg_setu32(s, 8, mp->ncci);
capimsg_setu16(s, 12, datahandle);
}
@@ -512,14 +512,15 @@ static void handle_minor_send(struct capiminor *mp)
mp->outbytes -= len;
spin_unlock_bh(&mp->outlock);
- datahandle = atomic_inc_return(&mp->datahandle);
+ datahandle = atomic_inc_return_wrap(&mp->datahandle);
skb_push(skb, CAPI_DATA_B3_REQ_LEN);
memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
capimsg_setu16(skb->data, 2, mp->ap->applid);
capimsg_setu8 (skb->data, 4, CAPI_DATA_B3);
capimsg_setu8 (skb->data, 5, CAPI_REQ);
- capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid));
+ capimsg_setu16(skb->data, 6,
+ atomic_inc_return_wrap(&mp->msgid));
capimsg_setu32(skb->data, 8, mp->ncci); /* NCCI */
capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */
capimsg_setu16(skb->data, 16, len); /* Data length */
diff --git a/drivers/md/dm-core.h b/drivers/md/dm-core.h
index 40ceba1..7ebbae9 100644
--- a/drivers/md/dm-core.h
+++ b/drivers/md/dm-core.h
@@ -75,8 +75,8 @@ struct mapped_device {
* Event handling.
*/
wait_queue_head_t eventq;
- atomic_t event_nr;
- atomic_t uevent_seq;
+ atomic_wrap_t event_nr;
+ atomic_wrap_t uevent_seq;
struct list_head uevent_list;
spinlock_t uevent_lock; /* Protect access to uevent_list */
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 8abde6b..ebff142 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3190,7 +3190,8 @@ static void raid_status(struct dm_target *ti, status_type_t type,
mddev->resync_max_sectors : mddev->dev_sectors;
progress = rs_get_progress(rs, resync_max_sectors, &array_in_sync);
resync_mismatches = (mddev->last_sync_action && !strcasecmp(mddev->last_sync_action, "check")) ?
- atomic64_read(&mddev->resync_mismatches) : 0;
+ atomic64_read_wrap(&mddev->
+ resync_mismatches) : 0;
sync_action = decipher_sync_action(&rs->md);
/* HM FIXME: do we want another state char for raid0? It shows 'D' or 'A' now */
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index bdf1606..f80fdce 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -42,7 +42,7 @@ enum dm_raid1_error {
struct mirror {
struct mirror_set *ms;
- atomic_t error_count;
+ atomic_wrap_t error_count;
unsigned long error_type;
struct dm_dev *dev;
sector_t offset;
@@ -188,7 +188,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms)
struct mirror *m;
for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++)
- if (!atomic_read(&m->error_count))
+ if (!atomic_read_wrap(&m->error_count))
return m;
return NULL;
@@ -220,7 +220,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type)
* simple way to tell if a device has encountered
* errors.
*/
- atomic_inc(&m->error_count);
+ atomic_inc_wrap(&m->error_count);
if (test_and_set_bit(error_type, &m->error_type))
return;
@@ -379,7 +379,7 @@ static void reset_ms_flags(struct mirror_set *ms)
ms->leg_failure = 0;
for (m = 0; m < ms->nr_mirrors; m++) {
- atomic_set(&(ms->mirror[m].error_count), 0);
+ atomic_set_wrap(&(ms->mirror[m].error_count), 0);
ms->mirror[m].error_type = 0;
}
}
@@ -424,7 +424,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector)
struct mirror *m = get_default_mirror(ms);
do {
- if (likely(!atomic_read(&m->error_count)))
+ if (likely(!atomic_read_wrap(&m->error_count)))
return m;
if (m-- == ms->mirror)
@@ -438,7 +438,7 @@ static int default_ok(struct mirror *m)
{
struct mirror *default_mirror = get_default_mirror(m->ms);
- return !atomic_read(&default_mirror->error_count);
+ return !atomic_read_wrap(&default_mirror->error_count);
}
static int mirror_available(struct mirror_set *ms, struct bio *bio)
@@ -578,7 +578,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
*/
if (likely(region_in_sync(ms, region, 1)))
m = choose_mirror(ms, bio->bi_iter.bi_sector);
- else if (m && atomic_read(&m->error_count))
+ else if (m && atomic_read_wrap(&m->error_count))
m = NULL;
if (likely(m))
@@ -963,7 +963,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
}
ms->mirror[mirror].ms = ms;
- atomic_set(&(ms->mirror[mirror].error_count), 0);
+ atomic_set_wrap(&(ms->mirror[mirror].error_count), 0);
ms->mirror[mirror].error_type = 0;
ms->mirror[mirror].offset = offset;
@@ -1388,7 +1388,7 @@ static void mirror_resume(struct dm_target *ti)
*/
static char device_status_char(struct mirror *m)
{
- if (!atomic_read(&(m->error_count)))
+ if (!atomic_read_wrap(&(m->error_count)))
return 'A';
return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' :
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 28193a5..c118b28 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -21,7 +21,7 @@ struct stripe {
struct dm_dev *dev;
sector_t physical_start;
- atomic_t error_count;
+ atomic_wrap_t error_count;
};
struct stripe_c {
@@ -190,7 +190,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
kfree(sc);
return r;
}
- atomic_set(&(sc->stripe[i].error_count), 0);
+ atomic_set_wrap(&(sc->stripe[i].error_count), 0);
}
ti->private = sc;
@@ -357,7 +357,8 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
DMEMIT("%d ", sc->stripes);
for (i = 0; i < sc->stripes; i++) {
DMEMIT("%s ", sc->stripe[i].dev->name);
- buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ?
+ buffer[i] = atomic_read_wrap(&(sc->
+ stripe[i].error_count)) ?
'D' : 'A';
}
buffer[i] = '\0';
@@ -402,8 +403,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, int error)
*/
for (i = 0; i < sc->stripes; i++)
if (!strcmp(sc->stripe[i].dev->name, major_minor)) {
- atomic_inc(&(sc->stripe[i].error_count));
- if (atomic_read(&(sc->stripe[i].error_count)) <
+ atomic_inc_wrap(&(sc->stripe[i].error_count));
+ if (atomic_read_wrap(&(sc->stripe[i].error_count)) <
DM_IO_ERROR_THRESHOLD)
schedule_work(&sc->trigger_event);
}
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 147af95..6e71bd3 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1484,8 +1484,8 @@ static struct mapped_device *alloc_dev(int minor)
spin_lock_init(&md->deferred_lock);
atomic_set(&md->holders, 1);
atomic_set(&md->open_count, 0);
- atomic_set(&md->event_nr, 0);
- atomic_set(&md->uevent_seq, 0);
+ atomic_set_wrap(&md->event_nr, 0);
+ atomic_set_wrap(&md->uevent_seq, 0);
INIT_LIST_HEAD(&md->uevent_list);
INIT_LIST_HEAD(&md->table_devices);
spin_lock_init(&md->uevent_lock);
@@ -1624,7 +1624,7 @@ static void event_callback(void *context)
dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
- atomic_inc(&md->event_nr);
+ atomic_inc_wrap(&md->event_nr);
wake_up(&md->eventq);
}
@@ -2412,18 +2412,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
uint32_t dm_next_uevent_seq(struct mapped_device *md)
{
- return atomic_add_return(1, &md->uevent_seq);
+ return atomic_add_return_wrap(1, &md->uevent_seq);
}
uint32_t dm_get_event_nr(struct mapped_device *md)
{
- return atomic_read(&md->event_nr);
+ return atomic_read_wrap(&md->event_nr);
}
int dm_wait_event(struct mapped_device *md, int event_nr)
{
return wait_event_interruptible(md->eventq,
- (event_nr != atomic_read(&md->event_nr)));
+ (event_nr != atomic_read_wrap(&md->event_nr)));
}
void dm_uevent_add(struct mapped_device *md, struct list_head *elist)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index eac84d8..1a78066 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -198,10 +198,10 @@ EXPORT_SYMBOL_GPL(bio_clone_mddev);
* start build, activate spare
*/
static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters);
-static atomic_t md_event_count;
+static atomic_wrap_t md_event_count;
void md_new_event(struct mddev *mddev)
{
- atomic_inc(&md_event_count);
+ atomic_inc_wrap(&md_event_count);
wake_up(&md_event_waiters);
}
EXPORT_SYMBOL_GPL(md_new_event);
@@ -1434,7 +1434,8 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE) &&
(le32_to_cpu(sb->feature_map) & MD_FEATURE_NEW_OFFSET))
rdev->new_data_offset += (s32)le32_to_cpu(sb->new_offset);
- atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
+ atomic_set_wrap(&rdev->corrected_errors,
+ le32_to_cpu(sb->cnt_corrected_read));
rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256;
bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
@@ -1700,7 +1701,8 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev)
else
sb->resync_offset = cpu_to_le64(0);
- sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors));
+ sb->cnt_corrected_read = cpu_to_le32(atomic_read_wrap(
+ &rdev->corrected_errors));
sb->raid_disks = cpu_to_le32(mddev->raid_disks);
sb->size = cpu_to_le64(mddev->dev_sectors);
@@ -2719,7 +2721,7 @@ __ATTR_PREALLOC(state, S_IRUGO|S_IWUSR, state_show, state_store);
static ssize_t
errors_show(struct md_rdev *rdev, char *page)
{
- return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors));
+ return sprintf(page, "%d\n", atomic_read_wrap(&rdev->corrected_errors));
}
static ssize_t
@@ -2731,7 +2733,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len)
rv = kstrtouint(buf, 10, &n);
if (rv < 0)
return rv;
- atomic_set(&rdev->corrected_errors, n);
+ atomic_set_wrap(&rdev->corrected_errors, n);
return len;
}
static struct rdev_sysfs_entry rdev_errors =
@@ -3180,8 +3182,8 @@ int md_rdev_init(struct md_rdev *rdev)
rdev->sb_loaded = 0;
rdev->bb_page = NULL;
atomic_set(&rdev->nr_pending, 0);
- atomic_set(&rdev->read_errors, 0);
- atomic_set(&rdev->corrected_errors, 0);
+ atomic_set_wrap(&rdev->read_errors, 0);
+ atomic_set_wrap(&rdev->corrected_errors, 0);
INIT_LIST_HEAD(&rdev->same_set);
init_waitqueue_head(&rdev->blocked_wait);
@@ -4403,7 +4405,7 @@ mismatch_cnt_show(struct mddev *mddev, char *page)
{
return sprintf(page, "%llu\n",
(unsigned long long)
- atomic64_read(&mddev->resync_mismatches));
+ atomic64_read_wrap(&mddev->resync_mismatches));
}
static struct md_sysfs_entry md_mismatches = __ATTR_RO(mismatch_cnt);
@@ -5460,7 +5462,7 @@ static void md_clean(struct mddev *mddev)
mddev->new_layout = 0;
mddev->new_chunk_sectors = 0;
mddev->curr_resync = 0;
- atomic64_set(&mddev->resync_mismatches, 0);
+ atomic64_set_wrap(&mddev->resync_mismatches, 0);
mddev->suspend_lo = mddev->suspend_hi = 0;
mddev->sync_speed_min = mddev->sync_speed_max = 0;
mddev->recovery = 0;
@@ -7455,7 +7457,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
spin_unlock(&pers_lock);
seq_printf(seq, "\n");
- seq->poll_event = atomic_read(&md_event_count);
+ seq->poll_event = atomic_read_wrap(&md_event_count);
return 0;
}
if (v == (void*)2) {
@@ -7555,7 +7557,7 @@ static int md_seq_open(struct inode *inode, struct file *file)
return error;
seq = file->private_data;
- seq->poll_event = atomic_read(&md_event_count);
+ seq->poll_event = atomic_read_wrap(&md_event_count);
return error;
}
@@ -7572,7 +7574,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
/* always allow read */
mask = POLLIN | POLLRDNORM;
- if (seq->poll_event != atomic_read(&md_event_count))
+ if (seq->poll_event != atomic_read_wrap(&md_event_count))
mask |= POLLERR | POLLPRI;
return mask;
}
@@ -7668,7 +7670,7 @@ static int is_mddev_idle(struct mddev *mddev, int init)
struct gendisk *disk = rdev->bdev->bd_contains->bd_disk;
curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
(int)part_stat_read(&disk->part0, sectors[1]) -
- atomic_read(&disk->sync_io);
+ atomic_read_wrap(&disk->sync_io);
/* sync IO will cause sync_io to increase before the disk_stats
* as sync_io is counted when a request starts, and
* disk_stats is counted when it completes.
@@ -7938,7 +7940,7 @@ void md_do_sync(struct md_thread *thread)
* which defaults to physical size, but can be virtual size
*/
max_sectors = mddev->resync_max_sectors;
- atomic64_set(&mddev->resync_mismatches, 0);
+ atomic64_set_wrap(&mddev->resync_mismatches, 0);
/* we don't use the checkpoint if there's a bitmap */
if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
j = mddev->resync_min;
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 2b20417..9354de8 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -96,13 +96,13 @@ struct md_rdev {
* only maintained for arrays that
* support hot removal
*/
- atomic_t read_errors; /* number of consecutive read errors that
- * we have tried to ignore.
+ atomic_wrap_t read_errors; /* number of consecutive read errors
+ * that we have tried to ignore.
*/
time64_t last_read_error; /* monotonic time since our
* last read error
*/
- atomic_t corrected_errors; /* number of corrected read errors,
+ atomic_wrap_t corrected_errors; /* number of corrected read errors,
* for reporting to userspace and storing
* in superblock.
*/
@@ -289,9 +289,10 @@ struct mddev {
sector_t resync_max_sectors; /* may be set by personality */
- atomic64_t resync_mismatches; /* count of sectors where
- * parity/replica mismatch found
- */
+ atomic64_wrap_t resync_mismatches;
+ /* count of sectors where
+ * parity/replica mismatch found
+ */
/* allow user-space to request suspension of IO to regions of the array */
sector_t suspend_lo;
@@ -468,7 +469,7 @@ extern void mddev_unlock(struct mddev *mddev);
static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors)
{
- atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
+ atomic_add_wrap(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
}
struct md_personality
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 1961d82..059113a 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1876,7 +1876,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
if (r1_sync_page_io(rdev, sect, s,
bio->bi_io_vec[idx].bv_page,
READ) != 0)
- atomic_add(s, &rdev->corrected_errors);
+ atomic_add_wrap(s, &rdev->corrected_errors);
}
sectors -= s;
sect += s;
@@ -1967,7 +1967,8 @@ static void process_checks(struct r1bio *r1_bio)
} else
j = 0;
if (j >= 0)
- atomic64_add(r1_bio->sectors, &mddev->resync_mismatches);
+ atomic64_add_wrap(r1_bio->sectors,
+ &mddev->resync_mismatches);
if (j < 0 || (test_bit(MD_RECOVERY_CHECK, &mddev->recovery)
&& !error)) {
/* No need to write to this device. */
@@ -2118,7 +2119,8 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
rcu_read_unlock();
if (r1_sync_page_io(rdev, sect, s,
conf->tmppage, READ)) {
- atomic_add(s, &rdev->corrected_errors);
+ atomic_add_wrap(s,
+ &rdev->corrected_errors);
printk(KERN_INFO
"md/raid1:%s: read error corrected "
"(%d sectors at %llu on %s)\n",
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index be1a9fc..5ef27b5 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1826,7 +1826,7 @@ static void end_sync_read(struct bio *bio)
/* The write handler will notice the lack of
* R10BIO_Uptodate and record any errors etc
*/
- atomic_add(r10_bio->sectors,
+ atomic_add_wrap(r10_bio->sectors,
&conf->mirrors[d].rdev->corrected_errors);
/* for reconstruct, we always reschedule after a read.
@@ -1975,7 +1975,8 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
}
if (j == vcnt)
continue;
- atomic64_add(r10_bio->sectors, &mddev->resync_mismatches);
+ atomic64_add_wrap(r10_bio->sectors,
+ &mddev->resync_mismatches);
if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery))
/* Don't fix anything. */
continue;
@@ -2174,7 +2175,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
{
long cur_time_mon;
unsigned long hours_since_last;
- unsigned int read_errors = atomic_read(&rdev->read_errors);
+ unsigned int read_errors = atomic_read_wrap(&rdev->read_errors);
cur_time_mon = ktime_get_seconds();
@@ -2195,9 +2196,10 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
* overflowing the shift of read_errors by hours_since_last.
*/
if (hours_since_last >= 8 * sizeof(read_errors))
- atomic_set(&rdev->read_errors, 0);
+ atomic_set_wrap(&rdev->read_errors, 0);
else
- atomic_set(&rdev->read_errors, read_errors >> hours_since_last);
+ atomic_set_wrap(&rdev->read_errors,
+ read_errors >> hours_since_last);
}
static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector,
@@ -2251,8 +2253,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
return;
check_decay_read_errors(mddev, rdev);
- atomic_inc(&rdev->read_errors);
- if (atomic_read(&rdev->read_errors) > max_read_errors) {
+ atomic_inc_wrap(&rdev->read_errors);
+ if (atomic_read_wrap(&rdev->read_errors) > max_read_errors) {
char b[BDEVNAME_SIZE];
bdevname(rdev->bdev, b);
@@ -2260,7 +2262,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
"md/raid10:%s: %s: Raid device exceeded "
"read_error threshold [cur %d:max %d]\n",
mdname(mddev), b,
- atomic_read(&rdev->read_errors), max_read_errors);
+ atomic_read_wrap(&rdev->read_errors), max_read_errors);
printk(KERN_NOTICE
"md/raid10:%s: %s: Failing raid device\n",
mdname(mddev), b);
@@ -2417,7 +2419,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
sect +
choose_data_offset(r10_bio, rdev)),
bdevname(rdev->bdev, b));
- atomic_add(s, &rdev->corrected_errors);
+ atomic_add_wrap(s, &rdev->corrected_errors);
}
rdev_dec_pending(rdev, mddev);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 92ac251..b2bca0b 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2354,21 +2354,22 @@ static void raid5_end_read_request(struct bio * bi)
mdname(conf->mddev), STRIPE_SECTORS,
(unsigned long long)s,
bdevname(rdev->bdev, b));
- atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
+ atomic_add_wrap(STRIPE_SECTORS,
+ &rdev->corrected_errors);
clear_bit(R5_ReadError, &sh->dev[i].flags);
clear_bit(R5_ReWrite, &sh->dev[i].flags);
} else if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
clear_bit(R5_ReadNoMerge, &sh->dev[i].flags);
- if (atomic_read(&rdev->read_errors))
- atomic_set(&rdev->read_errors, 0);
+ if (atomic_read_wrap(&rdev->read_errors))
+ atomic_set_wrap(&rdev->read_errors, 0);
} else {
const char *bdn = bdevname(rdev->bdev, b);
int retry = 0;
int set_bad = 0;
clear_bit(R5_UPTODATE, &sh->dev[i].flags);
- atomic_inc(&rdev->read_errors);
+ atomic_inc_wrap(&rdev->read_errors);
if (test_bit(R5_ReadRepl, &sh->dev[i].flags))
printk_ratelimited(
KERN_WARNING
@@ -2396,7 +2397,7 @@ static void raid5_end_read_request(struct bio * bi)
mdname(conf->mddev),
(unsigned long long)s,
bdn);
- } else if (atomic_read(&rdev->read_errors)
+ } else if (atomic_read_wrap(&rdev->read_errors)
> conf->max_nr_stripes)
printk(KERN_WARNING
"md/raid:%s: Too many read errors, failing device %s.\n",
@@ -3763,7 +3764,8 @@ static void handle_parity_checks5(struct r5conf *conf, struct stripe_head *sh,
*/
set_bit(STRIPE_INSYNC, &sh->state);
else {
- atomic64_add(STRIPE_SECTORS, &conf->mddev->resync_mismatches);
+ atomic64_add_wrap(STRIPE_SECTORS,
+ &conf->mddev->resync_mismatches);
if (test_bit(MD_RECOVERY_CHECK, &conf->mddev->recovery))
/* don't try to repair!! */
set_bit(STRIPE_INSYNC, &sh->state);
@@ -3915,7 +3917,8 @@ static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh,
*/
}
} else {
- atomic64_add(STRIPE_SECTORS, &conf->mddev->resync_mismatches);
+ atomic64_add_wrap(STRIPE_SECTORS,
+ &conf->mddev->resync_mismatches);
if (test_bit(MD_RECOVERY_CHECK, &conf->mddev->recovery))
/* don't try to repair!! */
set_bit(STRIPE_INSYNC, &sh->state);
diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
index ee48c3e..fd5b791 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -83,7 +83,7 @@ static struct pci_device_id ivtv_pci_tbl[] = {
MODULE_DEVICE_TABLE(pci,ivtv_pci_tbl);
/* ivtv instance counter */
-static atomic_t ivtv_instance = ATOMIC_INIT(0);
+static atomic_wrap_t ivtv_instance = ATOMIC_INIT(0);
/* Parameter declarations */
static int cardtype[IVTV_MAX_CARDS];
diff --git a/drivers/media/pci/solo6x10/solo6x10-p2m.c b/drivers/media/pci/solo6x10/solo6x10-p2m.c
index 8c84846..e63dc0f 100644
--- a/drivers/media/pci/solo6x10/solo6x10-p2m.c
+++ b/drivers/media/pci/solo6x10/solo6x10-p2m.c
@@ -73,7 +73,8 @@ int solo_p2m_dma_desc(struct solo_dev *solo_dev,
/* Get next ID. According to Softlogic, 6110 has problems on !=0 P2M */
if (solo_dev->type != SOLO_DEV_6110 && multi_p2m) {
- p2m_id = atomic_inc_return(&solo_dev->p2m_count) % SOLO_NR_P2M;
+ p2m_id = atomic_inc_return_wrap(&solo_dev->p2m_count) %
+ SOLO_NR_P2M;
if (p2m_id < 0)
p2m_id = -p2m_id;
}
diff --git a/drivers/media/pci/solo6x10/solo6x10.h b/drivers/media/pci/solo6x10/solo6x10.h
index 5bd4987..3bafa1b 100644
--- a/drivers/media/pci/solo6x10/solo6x10.h
+++ b/drivers/media/pci/solo6x10/solo6x10.h
@@ -216,7 +216,7 @@ struct solo_dev {
/* P2M DMA Engine */
struct solo_p2m_dev p2m_dev[SOLO_NR_P2M];
- atomic_t p2m_count;
+ atomic_wrap_t p2m_count;
int p2m_jiffies;
unsigned int p2m_timeouts;
diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c
index 8474528..151c587 100644
--- a/drivers/media/pci/tw68/tw68-core.c
+++ b/drivers/media/pci/tw68/tw68-core.c
@@ -61,7 +61,7 @@ static unsigned int card[] = {[0 ... (TW68_MAXBOARDS - 1)] = UNSET };
module_param_array(card, int, NULL, 0444);
MODULE_PARM_DESC(card, "card type");
-static atomic_t tw68_instance = ATOMIC_INIT(0);
+static atomic_wrap_t tw68_instance = ATOMIC_INIT(0);
/* ------------------------------------------------------------------ */
diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
index 8253f79..7bb1d5d 100644
--- a/drivers/media/radio/radio-maxiradio.c
+++ b/drivers/media/radio/radio-maxiradio.c
@@ -61,7 +61,7 @@ MODULE_PARM_DESC(radio_nr, "Radio device number");
/* TEA5757 pin mappings */
static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16;
-static atomic_t maxiradio_instance = ATOMIC_INIT(0);
+static atomic_wrap_t maxiradio_instance = ATOMIC_INIT(0);
#define PCI_VENDOR_ID_GUILLEMOT 0x5046
#define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c
index 85667a9..084d94d 100644
--- a/drivers/media/radio/radio-shark.c
+++ b/drivers/media/radio/radio-shark.c
@@ -79,7 +79,7 @@ struct shark_device {
u32 last_val;
};
-static atomic_t shark_instance = ATOMIC_INIT(0);
+static atomic_wrap_t shark_instance = ATOMIC_INIT(0);
static void shark_write_val(struct snd_tea575x *tea, u32 val)
{
diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c
index 0e65a85..c0a5d51 100644
--- a/drivers/media/radio/radio-shark2.c
+++ b/drivers/media/radio/radio-shark2.c
@@ -74,7 +74,7 @@ struct shark_device {
u8 *transfer_buffer;
};
-static atomic_t shark_instance = ATOMIC_INIT(0);
+static atomic_wrap_t shark_instance = ATOMIC_INIT(0);
static int shark_write_reg(struct radio_tea5777 *tea, u64 reg)
{
diff --git a/drivers/media/radio/radio-si476x.c b/drivers/media/radio/radio-si476x.c
index 271f725..04a552b 100644
--- a/drivers/media/radio/radio-si476x.c
+++ b/drivers/media/radio/radio-si476x.c
@@ -1445,7 +1445,7 @@ static int si476x_radio_probe(struct platform_device *pdev)
struct si476x_radio *radio;
struct v4l2_ctrl *ctrl;
- static atomic_t instance = ATOMIC_INIT(0);
+ static atomic_wrap_t instance = ATOMIC_INIT(0);
radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL);
if (!radio)
diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c
index 62bbed7..c77eef5 100644
--- a/drivers/media/v4l2-core/v4l2-device.c
+++ b/drivers/media/v4l2-core/v4l2-device.c
@@ -74,9 +74,9 @@ int v4l2_device_put(struct v4l2_device *v4l2_dev)
EXPORT_SYMBOL_GPL(v4l2_device_put);
int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
- atomic_t *instance)
+ atomic_wrap_t *instance)
{
- int num = atomic_inc_return(instance) - 1;
+ int num = atomic_inc_return_wrap(instance) - 1;
int len = strlen(basename);
if (basename[len - 1] >= '0' && basename[len - 1] <= '9')
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
index fb8705f..5d13db8 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
@@ -497,7 +497,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data)
* the lid is closed. This leads to interrupts as soon as a little move
* is done.
*/
- atomic_inc(&lis3->count);
+ atomic_inc_wrap(&lis3->count);
wake_up_interruptible(&lis3->misc_wait);
kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
@@ -583,7 +583,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
if (lis3->pm_dev)
pm_runtime_get_sync(lis3->pm_dev);
- atomic_set(&lis3->count, 0);
+ atomic_set_wrap(&lis3->count, 0);
return 0;
}
@@ -615,7 +615,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
add_wait_queue(&lis3->misc_wait, &wait);
while (true) {
set_current_state(TASK_INTERRUPTIBLE);
- data = atomic_xchg(&lis3->count, 0);
+ data = atomic_xchg_wrap(&lis3->count, 0);
if (data)
break;
@@ -656,7 +656,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
struct lis3lv02d, miscdev);
poll_wait(file, &lis3->misc_wait, wait);
- if (atomic_read(&lis3->count))
+ if (atomic_read_wrap(&lis3->count))
return POLLIN | POLLRDNORM;
return 0;
}
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
index c439c82..a77faee 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.h
+++ b/drivers/misc/lis3lv02d/lis3lv02d.h
@@ -297,7 +297,7 @@ struct lis3lv02d {
struct input_polled_dev *idev; /* input device */
struct platform_device *pdev; /* platform device */
struct regulator_bulk_data regulators[2];
- atomic_t count; /* interrupt count after last read */
+ atomic_wrap_t count; /* interrupt count after last read */
union axis_conversion ac; /* hw -> logical axis */
int mapped_btns[3];
diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
index 1ee8e82..435cb49 100644
--- a/drivers/misc/sgi-gru/gruhandles.c
+++ b/drivers/misc/sgi-gru/gruhandles.c
@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks)
unsigned long nsec;
nsec = CLKS2NSEC(clks);
- atomic_long_inc(&mcs_op_statistics[op].count);
- atomic_long_add(nsec, &mcs_op_statistics[op].total);
+ atomic_long_inc_wrap(&mcs_op_statistics[op].count);
+ atomic_long_add_wrap(nsec, &mcs_op_statistics[op].total);
if (mcs_op_statistics[op].max < nsec)
mcs_op_statistics[op].max = nsec;
}
diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
index 4f76359..0aef871 100644
--- a/drivers/misc/sgi-gru/gruprocfs.c
+++ b/drivers/misc/sgi-gru/gruprocfs.c
@@ -32,9 +32,9 @@
#define printstat(s, f) printstat_val(s, &gru_stats.f, #f)
-static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id)
+static void printstat_val(struct seq_file *s, atomic_long_wrap_t *v, char *id)
{
- unsigned long val = atomic_long_read(v);
+ unsigned long val = atomic_long_read_wrap(v);
seq_printf(s, "%16lu %s\n", val, id);
}
@@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p)
seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks");
for (op = 0; op < mcsop_last; op++) {
- count = atomic_long_read(&mcs_op_statistics[op].count);
- total = atomic_long_read(&mcs_op_statistics[op].total);
+ count = atomic_long_read_wrap(&mcs_op_statistics[op].count);
+ total = atomic_long_read_wrap(&mcs_op_statistics[op].total);
max = mcs_op_statistics[op].max;
seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count,
count ? total / count : 0, max);
diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index 5c3ce24..56740c4 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -167,82 +167,82 @@ extern unsigned int gru_max_gids;
* GRU statistics.
*/
struct gru_stats_s {
- atomic_long_t vdata_alloc;
- atomic_long_t vdata_free;
- atomic_long_t gts_alloc;
- atomic_long_t gts_free;
- atomic_long_t gms_alloc;
- atomic_long_t gms_free;
- atomic_long_t gts_double_allocate;
- atomic_long_t assign_context;
- atomic_long_t assign_context_failed;
- atomic_long_t free_context;
- atomic_long_t load_user_context;
- atomic_long_t load_kernel_context;
- atomic_long_t lock_kernel_context;
- atomic_long_t unlock_kernel_context;
- atomic_long_t steal_user_context;
- atomic_long_t steal_kernel_context;
- atomic_long_t steal_context_failed;
- atomic_long_t nopfn;
- atomic_long_t asid_new;
- atomic_long_t asid_next;
- atomic_long_t asid_wrap;
- atomic_long_t asid_reuse;
- atomic_long_t intr;
- atomic_long_t intr_cbr;
- atomic_long_t intr_tfh;
- atomic_long_t intr_spurious;
- atomic_long_t intr_mm_lock_failed;
- atomic_long_t call_os;
- atomic_long_t call_os_wait_queue;
- atomic_long_t user_flush_tlb;
- atomic_long_t user_unload_context;
- atomic_long_t user_exception;
- atomic_long_t set_context_option;
- atomic_long_t check_context_retarget_intr;
- atomic_long_t check_context_unload;
- atomic_long_t tlb_dropin;
- atomic_long_t tlb_preload_page;
- atomic_long_t tlb_dropin_fail_no_asid;
- atomic_long_t tlb_dropin_fail_upm;
- atomic_long_t tlb_dropin_fail_invalid;
- atomic_long_t tlb_dropin_fail_range_active;
- atomic_long_t tlb_dropin_fail_idle;
- atomic_long_t tlb_dropin_fail_fmm;
- atomic_long_t tlb_dropin_fail_no_exception;
- atomic_long_t tfh_stale_on_fault;
- atomic_long_t mmu_invalidate_range;
- atomic_long_t mmu_invalidate_page;
- atomic_long_t flush_tlb;
- atomic_long_t flush_tlb_gru;
- atomic_long_t flush_tlb_gru_tgh;
- atomic_long_t flush_tlb_gru_zero_asid;
-
- atomic_long_t copy_gpa;
- atomic_long_t read_gpa;
-
- atomic_long_t mesq_receive;
- atomic_long_t mesq_receive_none;
- atomic_long_t mesq_send;
- atomic_long_t mesq_send_failed;
- atomic_long_t mesq_noop;
- atomic_long_t mesq_send_unexpected_error;
- atomic_long_t mesq_send_lb_overflow;
- atomic_long_t mesq_send_qlimit_reached;
- atomic_long_t mesq_send_amo_nacked;
- atomic_long_t mesq_send_put_nacked;
- atomic_long_t mesq_page_overflow;
- atomic_long_t mesq_qf_locked;
- atomic_long_t mesq_qf_noop_not_full;
- atomic_long_t mesq_qf_switch_head_failed;
- atomic_long_t mesq_qf_unexpected_error;
- atomic_long_t mesq_noop_unexpected_error;
- atomic_long_t mesq_noop_lb_overflow;
- atomic_long_t mesq_noop_qlimit_reached;
- atomic_long_t mesq_noop_amo_nacked;
- atomic_long_t mesq_noop_put_nacked;
- atomic_long_t mesq_noop_page_overflow;
+ atomic_long_wrap_t vdata_alloc;
+ atomic_long_wrap_t vdata_free;
+ atomic_long_wrap_t gts_alloc;
+ atomic_long_wrap_t gts_free;
+ atomic_long_wrap_t gms_alloc;
+ atomic_long_wrap_t gms_free;
+ atomic_long_wrap_t gts_double_allocate;
+ atomic_long_wrap_t assign_context;
+ atomic_long_wrap_t assign_context_failed;
+ atomic_long_wrap_t free_context;
+ atomic_long_wrap_t load_user_context;
+ atomic_long_wrap_t load_kernel_context;
+ atomic_long_wrap_t lock_kernel_context;
+ atomic_long_wrap_t unlock_kernel_context;
+ atomic_long_wrap_t steal_user_context;
+ atomic_long_wrap_t steal_kernel_context;
+ atomic_long_wrap_t steal_context_failed;
+ atomic_long_wrap_t nopfn;
+ atomic_long_wrap_t asid_new;
+ atomic_long_wrap_t asid_next;
+ atomic_long_wrap_t asid_wrap;
+ atomic_long_wrap_t asid_reuse;
+ atomic_long_wrap_t intr;
+ atomic_long_wrap_t intr_cbr;
+ atomic_long_wrap_t intr_tfh;
+ atomic_long_wrap_t intr_spurious;
+ atomic_long_wrap_t intr_mm_lock_failed;
+ atomic_long_wrap_t call_os;
+ atomic_long_wrap_t call_os_wait_queue;
+ atomic_long_wrap_t user_flush_tlb;
+ atomic_long_wrap_t user_unload_context;
+ atomic_long_wrap_t user_exception;
+ atomic_long_wrap_t set_context_option;
+ atomic_long_wrap_t check_context_retarget_intr;
+ atomic_long_wrap_t check_context_unload;
+ atomic_long_wrap_t tlb_dropin;
+ atomic_long_wrap_t tlb_preload_page;
+ atomic_long_wrap_t tlb_dropin_fail_no_asid;
+ atomic_long_wrap_t tlb_dropin_fail_upm;
+ atomic_long_wrap_t tlb_dropin_fail_invalid;
+ atomic_long_wrap_t tlb_dropin_fail_range_active;
+ atomic_long_wrap_t tlb_dropin_fail_idle;
+ atomic_long_wrap_t tlb_dropin_fail_fmm;
+ atomic_long_wrap_t tlb_dropin_fail_no_exception;
+ atomic_long_wrap_t tfh_stale_on_fault;
+ atomic_long_wrap_t mmu_invalidate_range;
+ atomic_long_wrap_t mmu_invalidate_page;
+ atomic_long_wrap_t flush_tlb;
+ atomic_long_wrap_t flush_tlb_gru;
+ atomic_long_wrap_t flush_tlb_gru_tgh;
+ atomic_long_wrap_t flush_tlb_gru_zero_asid;
+
+ atomic_long_wrap_t copy_gpa;
+ atomic_long_wrap_t read_gpa;
+
+ atomic_long_wrap_t mesq_receive;
+ atomic_long_wrap_t mesq_receive_none;
+ atomic_long_wrap_t mesq_send;
+ atomic_long_wrap_t mesq_send_failed;
+ atomic_long_wrap_t mesq_noop;
+ atomic_long_wrap_t mesq_send_unexpected_error;
+ atomic_long_wrap_t mesq_send_lb_overflow;
+ atomic_long_wrap_t mesq_send_qlimit_reached;
+ atomic_long_wrap_t mesq_send_amo_nacked;
+ atomic_long_wrap_t mesq_send_put_nacked;
+ atomic_long_wrap_t mesq_page_overflow;
+ atomic_long_wrap_t mesq_qf_locked;
+ atomic_long_wrap_t mesq_qf_noop_not_full;
+ atomic_long_wrap_t mesq_qf_switch_head_failed;
+ atomic_long_wrap_t mesq_qf_unexpected_error;
+ atomic_long_wrap_t mesq_noop_unexpected_error;
+ atomic_long_wrap_t mesq_noop_lb_overflow;
+ atomic_long_wrap_t mesq_noop_qlimit_reached;
+ atomic_long_wrap_t mesq_noop_amo_nacked;
+ atomic_long_wrap_t mesq_noop_put_nacked;
+ atomic_long_wrap_t mesq_noop_page_overflow;
};
@@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync,
tghop_invalidate, mcsop_last};
struct mcs_op_statistic {
- atomic_long_t count;
- atomic_long_t total;
+ atomic_long_wrap_t count;
+ atomic_long_wrap_t total;
unsigned long max;
};
@@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
#define STAT(id) do { \
if (gru_options & OPT_STATS) \
- atomic_long_inc(&gru_stats.id); \
+ atomic_long_inc_wrap(&gru_stats.id); \
} while (0)
#ifdef CONFIG_SGI_GRU_DEBUG
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index f4fbcb5..4edfb71 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -160,7 +160,7 @@ struct rndis_device {
enum rndis_device_state state;
bool link_state;
- atomic_t new_req_id;
+ atomic_wrap_t new_req_id;
spinlock_t request_lock;
struct list_head req_list;
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 9195d5d..5abf832c 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -101,7 +101,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev,
* template
*/
set = &rndis_msg->msg.set_req;
- set->req_id = atomic_inc_return(&dev->new_req_id);
+ set->req_id = atomic_inc_return_wrap(&dev->new_req_id);
/* Add to the request list */
spin_lock_irqsave(&dev->request_lock, flags);
@@ -881,7 +881,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
/* Setup the rndis set */
halt = &request->request_msg.msg.halt_req;
- halt->req_id = atomic_inc_return(&dev->new_req_id);
+ halt->req_id = atomic_inc_return_wrap(&dev->new_req_id);
/* Ignore return since this msg is optional. */
rndis_filter_send_request(dev, request);
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index e0341af..1d37dc1 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -208,7 +208,7 @@ struct gendisk {
struct kobject *slave_dir;
struct timer_rand_state *random;
- atomic_t sync_io; /* RAID */
+ atomic_wrap_t sync_io; /* RAID */
struct disk_events *ev;
#ifdef CONFIG_BLK_DEV_INTEGRITY
struct kobject integrity_kobj;
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index 8ffa940..1fe714a 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -139,7 +139,7 @@ int __must_check v4l2_device_register(struct device *dev,
* then the name will be set to cx18-0 since cx180 would look really odd.
*/
int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
- atomic_t *instance);
+ atomic_wrap_t *instance);
/**
* v4l2_device_disconnect - Change V4L2 device state to disconnected.
--
2.7.4
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