From: Jan Kara <jack@suse.cz>
To: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Dan Williams <dan.j.williams@intel.com>,
<linux-fsdevel@vger.kernel.org>, <linux-ext4@vger.kernel.org>,
linux-nvdimm@lists.01.org, Jan Kara <jack@suse.cz>
Subject: [PATCH 0/4 v2] mm,dax: Fix data corruption due to mmap inconsistency
Date: Fri, 5 May 2017 09:24:56 +0200 [thread overview]
Message-ID: <20170505072500.25692-1-jack@suse.cz> (raw)
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. Ross, what you think?
Honza
next reply other threads:[~2017-05-05 7:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-05 7:24 Jan Kara [this message]
[not found] ` <20170505072500.25692-1-jack-AlSwsSmVLrQ@public.gmane.org>
2017-05-05 7:24 ` [PATCH 1/4] dax: prevent invalidation of mapped DAX entries Jan Kara
2017-05-05 7:24 ` [PATCH 2/4] mm: Fix data corruption due to stale mmap reads Jan Kara
2017-05-05 7:24 ` [PATCH 3/4] ext4: Return back to starting transaction in ext4_dax_huge_fault() Jan Kara
2017-05-05 7:25 ` [PATCH 4/4] dax: Fix data corruption when fault races with write Jan Kara
[not found] ` <20170505072500.25692-5-jack-AlSwsSmVLrQ@public.gmane.org>
2017-05-08 17:25 ` Ross Zwisler
[not found] ` <20170508172527.GA18408-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-05-09 12:14 ` Jan Kara
2017-05-08 17:27 ` [PATCH 0/4 v2] mm,dax: Fix data corruption due to mmap inconsistency Ross Zwisler
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