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| author |   Dan Williams <dan.j.williams@intel.com> | 2016-01-28 20:25:31 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-01-30 13:35:32 -0800 |
| commit | d1a5f2b4d8a125943dcb6b032fc7eaefc2c78296 (patch) | |
| tree | afdd4251d10cbcf34b00bd4f33adb27996881cc6 /tools/testing/nvdimm/test/iomap.c | |
| parent | block: revert runtime dax control of the raw block device (diff) | |
| download | linux-dev-d1a5f2b4d8a125943dcb6b032fc7eaefc2c78296.tar.xz linux-dev-d1a5f2b4d8a125943dcb6b032fc7eaefc2c78296.zip | |
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 'tools/testing/nvdimm/test/iomap.c')
0 files changed, 0 insertions, 0 deletions