Date: Fri, 5 May 2017 12:16:11 -0400 From: Tejun Heo <tj@...nel.org> To: Tycho Andersen <tycho@...ker.com> Cc: Juerg Haefliger <juerg.haefliger@....com>, Christoph Hellwig <hch@...radead.org>, linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org, kernel-hardening@...ts.openwall.com Subject: Re: [PATCH v2] ata-sff: always map page before data transfer On Thu, May 04, 2017 at 04:15:51PM -0600, Tycho Andersen wrote: > The XPFO  patchset may unmap pages from physmap if they happened to be > destined for userspace. If such a page is unmapped, it needs to be > remapped. Rather than test if a page is in the highmem/xpfo unmapped state, > Christoph suggested  that we simply always map the page. > > v2: * drop comment about bounce buffer > * don't save IRQs before kmap/unmap > * formatting > > Suggested-by: Christoph Hellwig <hch@...radead.org> > Signed-off-by: Tycho Andersen <tycho@...ker.com> > CC: Juerg Haefliger <juerg.haefliger@....com> > CC: Tejun Heo <tj@...nel.org> > > : https://lkml.org/lkml/2016/11/4/245 > : https://lkml.org/lkml/2016/11/4/253 Yeah, it's a nice cleanup. Applied to libata/for-4.13. Thanks. -- tejun
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