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(parent: 1c8457c) | patch
ext4: honor O_(D)SYNC semantic in ext4_fallocate()
authorZheng Liu <gnehzuil.liu@gmail.com>
Sat, 30 Jun 2012 23:12:57 +0000 (19:12 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Sat, 30 Jun 2012 23:12:57 +0000 (19:12 -0400)
commitf4e95b3316c4daa43224753bb98f41456fef86c7
tree29bce2b6f2dc86433f9615a1a6a8628840ad680dtree | snapshot
parent1c8457cadc9cefe7ec920a2f3537ff1fe20f4061commit | diff
ext4: honor O_(D)SYNC semantic in ext4_fallocate()

Ext4 must make sure the transaction to be commited to the disk when
user opens a file with O_(D)SYNC flag and do a fallocate(2) call.

This problem had been reported by Christoph Hellwig in this thread:
http://www.spinics.net/lists/linux-btrfs/msg13621.html

Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext4/extents.c diff | blob | history
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