tree 5eddf206e10b0b1857c899fd9939c517aa758359
parent 91ebecc74eeeeea0a2aa50bf1964ec2214a229c9
author David Chinner <dgc@sgi.com> 1184826538 +1000
committer Tim Shimmin <tes@chook.melbourne.sgi.com> 1184838725 +1000

[XFS] Fix inode size update before data write in xfs_setattr

When changing the file size by a truncate() call, we log the change in the
inode size. However, we do not flush any outstanding data that might not
have been written to disk, thereby violating the data/inode size update
order. This can leave files full of NULLs on crash.

Hence if we are truncating the file, flush any unwritten data that may lie
between the curret on disk inode size and the new inode size that is being
logged to ensure that ordering is preserved.

SGI-PV: 966308
SGI-Modid: xfs-linux-melb:xfs-kern:29174a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>