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dax: some small updates to dax.txt documentation

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These are originally from Matthew Wilcox and were part of his huge
"mm,fs,dax: Change ->pmd_fault to ->huge_fault" patch that was part of
PUD support.

I'm breaking these small changes out as they stand on their own and add
useful information to Documentation/filesystems/dax.txt.

Link: http://lkml.kernel.org/r/20160714214049.20075-1-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ross Zwisler 2016-07-26 15:21:02 -07:00 committed by Linus Torvalds
parent 397b080bb7
commit 221c7dc881
1 changed files with 4 additions and 2 deletions
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6
Documentation/filesystems/dax.txt
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@ -49,6 +49,7 @@ These block devices may be used for inspiration:
- axonram: Axon DDR2 device driver
- brd: RAM backed block device driver
- dcssblk: s390 dcss block device driver
- pmem: NVDIMM persistent memory driver
Implementation Tips for Filesystem Writers
@ -75,8 +76,9 @@ calls to get_block() (for example by a page-fault racing with a read()
or a write()) work correctly.
These filesystems may be used for inspiration:
- ext2: the second extended filesystem, see Documentation/filesystems/ext2.txt
- ext4: the fourth extended filesystem, see Documentation/filesystems/ext4.txt
- ext2: see Documentation/filesystems/ext2.txt
- ext4: see Documentation/filesystems/ext4.txt
- xfs: see Documentation/filesystems/xfs.txt
Handling Media Errors