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| author | Joseph Qi <joseph.qi@huawei.com> | 2015-04-14 15:43:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-14 16:48:57 -0700 |
| commit | 14a5275d8c31ba24832f45eeb2469e835ded660d (patch) | |
| tree | 91f7ea53e0fcfa73088ca9b71af6aac4610b5321 /fs/super.c | |
| parent | 37a8d89aee2a5b58812e19520d96632efe987f54 (diff) | |
| download | lwn-14a5275d8c31ba24832f45eeb2469e835ded660d.tar.gz lwn-14a5275d8c31ba24832f45eeb2469e835ded660d.zip | |
ocfs2: do not use ocfs2_zero_extend during direct IO
In ocfs2_direct_IO_write, we use ocfs2_zero_extend to zero allocated
clusters in case of cluster not aligned. But ocfs2_zero_extend uses page
cache, this may happen that it clears the data which blockdev_direct_IO
has already written.
We should use blkdev_issue_zeroout instead of ocfs2_zero_extend during
direct IO.
So fix this issue by introducing ocfs2_direct_IO_zero_extend and
ocfs2_direct_IO_extend_no_holes.
Reported-by: Yiwen Jiang <jiangyiwen@huawei.com>
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Tested-by: Yiwen Jiang <jiangyiwen@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/super.c')
0 files changed, 0 insertions, 0 deletions