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| author | Mingming Cao <cmm@us.ibm.com> | 2008-08-19 22:16:03 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-08-19 22:16:03 -0400 |
| commit | f3bd1f3fa8ca7ec70cfd87aa94dc5e1a260901f2 (patch) | |
| tree | a0f0ce2e044f8a75009e94d5f788b45a3948bbe3 /drivers | |
| parent | ee12b630687d510f6f4b6d4acdc4e267fd4adeda (diff) | |
ext4: journal credits reservation fixes for DIO, fallocate
DIO and fallocate credit calculation is different than writepage, as
they do start a new journal right for each call to ext4_get_blocks_wrap().
This patch uses the helper function in DIO and fallocate case, passing
a flag indicating that the modified data are contigous thus could account
less indirect/index blocks.
This patch also fixed the journal credit reservation for direct I/O
(DIO). Previously the estimated credits for DIO only was calculated for
non-extent files, which was not enough if the file is extent-based.
Also fixed was fallocate double-counting credits for modifying the the
superblock.
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions