From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: Jan Kara <jack@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Dan Williams <dan.j.williams@intel.com>,
linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-nvdimm@lists.01.org, linux-mm@kvack.org
Subject: Re: [PATCH 0/4 v4] mm,dax: Fix data corruption due to mmap inconsistency
Date: Wed, 10 May 2017 11:27:55 -0600 [thread overview]
Message-ID: <20170510172755.GA18283@linux.intel.com> (raw)
In-Reply-To: <20170510085419.27601-1-jack@suse.cz>
On Wed, May 10, 2017 at 10:54:15AM +0200, Jan Kara wrote:
> Hello,
>
> this series fixes data corruption that can happen for DAX mounts when
> page faults race with write(2) and as a result page tables get out of sync
> with block mappings in the filesystem and thus data seen through mmap is
> different from data seen through read(2).
>
> The series passes testing with t_mmap_stale test program from Ross and also
> other mmap related tests on DAX filesystem.
>
> Andrew, can you please merge these patches? Thanks!
>
> Changes since v3:
> * Rebased on top of current Linus' tree due to non-trivial conflicts with
> added tracepoint
Cool, the merge update looks correct to me.
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prev parent reply other threads:[~2017-05-10 17:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-10 8:54 [PATCH 0/4 v4] mm,dax: Fix data corruption due to mmap inconsistency Jan Kara
2017-05-10 8:54 ` [PATCH 1/4] dax: prevent invalidation of mapped DAX entries Jan Kara
2017-05-10 8:54 ` [PATCH 2/4] mm: Fix data corruption due to stale mmap reads Jan Kara
2017-05-10 8:54 ` [PATCH 3/4] ext4: Return back to starting transaction in ext4_dax_huge_fault() Jan Kara
2017-05-10 8:54 ` [PATCH 4/4] dax: Fix data corruption when fault races with write Jan Kara
2017-05-10 17:27 ` [PATCH 5/4] dax: Fix PMD " Ross Zwisler
2017-05-11 8:39 ` Jan Kara
2017-05-10 17:27 ` Ross Zwisler [this message]
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