[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Tue, 26 Jan 2016 10:19:08 -0600 (CST)
From: Christoph Lameter <cl@...ux.com>
To: Laura Abbott <labbott@...oraproject.org>
cc: Pekka Enberg <penberg@...nel.org>, David Rientjes <rientjes@...gle.com>,
Joonsoo Kim <js1304@...il.com>, Andrew Morton <akpm@...ux-foundation.org>,
linux-mm@...ck.org, linux-kernel@...r.kernel.org,
kernel-hardening@...ts.openwall.com, Kees Cook <keescook@...omium.org>
Subject: Re: [RFC][PATCH 1/3] slub: Drop lock at the end of
free_debug_processing
On Mon, 25 Jan 2016, Laura Abbott wrote:
> Currently, free_debug_processing has a comment "Keep node_lock to preserve
> integrity until the object is actually freed". In actuallity,
> the lock is dropped immediately in __slab_free. Rather than wait until
> __slab_free and potentially throw off the unlikely marking, just drop
> the lock in __slab_free. This also lets free_debug_processing take
> its own copy of the spinlock flags rather than trying to share the ones
> from __slab_free. Since there is no use for the node afterwards, change
> the return type of free_debug_processing to return an int like
> alloc_debug_processing.
Acked-by: Christoph Lameter <cl@...ux.com>\
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
