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| author | Jan Kara <[email protected]> | 2013-01-29 02:06:42 +0000 |
|---|---|---|
| committer | Theodore Ts'o <[email protected]> | 2013-01-29 02:06:42 +0000 |
| commit | fe386132f6731d02a45c380be0a3d339e6446cb5 (patch) | |
| tree | b28efc5faa2cad4823eaec0ef847a9446ef75a5b /fs/jbd2/commit.c | |
| parent | ext4: Make ext4_bio_writepage() handle unprepared buffers (diff) | |
| download | kernel-fe386132f6731d02a45c380be0a3d339e6446cb5.tar.gz kernel-fe386132f6731d02a45c380be0a3d339e6446cb5.zip | |
ext4: fix ext4_writepage() to achieve data=ordered guarantees
So far ext4_writepage() skipped writing pages that had any delayed or
unwritten buffers attached. When blocksize < pagesize this breaks
data=ordered mode guarantees as we can have a page with one freshly
allocated buffer whose allocation is part of the committing
transaction and another buffer in the page which is delayed or
unwritten. So fix this problem by calling ext4_bio_writepage()
anyway. It will submit mapped buffers and leave others alone.
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions