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| author | Mingming Cao | 2008-08-20 04:16:03 +0200 |
|---|---|---|
| committer | Theodore Ts'o | 2008-08-20 04:16:03 +0200 |
| commit | f3bd1f3fa8ca7ec70cfd87aa94dc5e1a260901f2 (patch) | |
| tree | a0f0ce2e044f8a75009e94d5f788b45a3948bbe3 /fs/ext4/ext4.h | |
| parent | ext4: journal credits reservation fixes for extent file writepage (diff) | |
| download | kernel-qcow2-linux-f3bd1f3fa8ca7ec70cfd87aa94dc5e1a260901f2.tar.gz kernel-qcow2-linux-f3bd1f3fa8ca7ec70cfd87aa94dc5e1a260901f2.tar.xz kernel-qcow2-linux-f3bd1f3fa8ca7ec70cfd87aa94dc5e1a260901f2.zip | |
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 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 38e661b0ea88..295003241d3d 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1073,6 +1073,7 @@ extern void ext4_get_inode_flags(struct ext4_inode_info *); extern void ext4_set_aops(struct inode *inode); extern int ext4_writepage_trans_blocks(struct inode *); extern int ext4_meta_trans_blocks(struct inode *, int nrblocks, int idxblocks); +extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks); extern int ext4_block_truncate_page(handle_t *handle, struct address_space *mapping, loff_t from); extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct page *page); |