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authorDan Williams <dan.j.williams@intel.com>2016-01-29 04:25:31 (GMT)
committerDan Williams <dan.j.williams@intel.com>2016-01-30 21:35:32 (GMT)
commitd1a5f2b4d8a125943dcb6b032fc7eaefc2c78296 (patch)
treeafdd4251d10cbcf34b00bd4f33adb27996881cc6 /virt
parent9f4736fe7ca804aa79b5916221bb13dfc6221a0f (diff)
downloadlinux-d1a5f2b4d8a125943dcb6b032fc7eaefc2c78296.tar.xz
block: use DAX for partition table reads
Avoid populating pagecache when the block device is in DAX mode. Otherwise these page cache entries collide with the fsync/msync implementation and break data durability guarantees. Cc: Jan Kara <jack@suse.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Chinner <david@fromorbit.com> Cc: Andrew Morton <akpm@linux-foundation.org> Reported-by: Ross Zwisler <ross.zwisler@linux.intel.com> Tested-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'virt')
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