diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-04-07 04:01:38 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-07 17:31:15 +0200 |
| commit | f30bf3e40f80ef50c17f55271deae3abc03e793e (patch) | |
| tree | 2e6d69611d1443688c1a79c5e5aed60cf38672e7 /fs/nilfs2/segment.h | |
| parent | nilfs2: segment constructor (diff) | |
| download | linux-f30bf3e40f80ef50c17f55271deae3abc03e793e.tar.xz linux-f30bf3e40f80ef50c17f55271deae3abc03e793e.zip | |
nilfs2: fix missed-sync issue for do_sync_mapping_range()
Chris Mason pointed out that there is a missed sync issue in
nilfs_writepages():
On Wed, 17 Dec 2008 21:52:55 -0500, Chris Mason wrote:
> It looks like nilfs_writepage ignores WB_SYNC_NONE, which is used by
> do_sync_mapping_range().
where WB_SYNC_NONE in do_sync_mapping_range() was replaced with
WB_SYNC_ALL by Nick's patch (commit:
ee53a891f47444c53318b98dac947ede963db400).
This fixes the problem by letting nilfs_writepages() write out the log of
file data within the range if sync_mode is WB_SYNC_ALL.
This involves removal of nilfs_file_aio_write() which was previously
needed to ensure O_SYNC sync writes.
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2/segment.h')
| -rw-r--r-- | fs/nilfs2/segment.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h index 615654b8c329..2dd39da9f386 100644 --- a/fs/nilfs2/segment.h +++ b/fs/nilfs2/segment.h @@ -93,6 +93,9 @@ struct nilfs_segsum_pointer { * @sc_active_segments: List of active segments that were already written out * @sc_cleaning_segments: List of segments to be freed through construction * @sc_copied_buffers: List of copied buffers (buffer heads) to freeze data + * @sc_dsync_inode: inode whose data pages are written for a sync operation + * @sc_dsync_start: start byte offset of data pages + * @sc_dsync_end: end byte offset of data pages (inclusive) * @sc_segbufs: List of segment buffers * @sc_segbuf_nblocks: Number of available blocks in segment buffers. * @sc_curseg: Current segment buffer @@ -134,6 +137,10 @@ struct nilfs_sc_info { struct list_head sc_cleaning_segments; struct list_head sc_copied_buffers; + struct nilfs_inode_info *sc_dsync_inode; + loff_t sc_dsync_start; + loff_t sc_dsync_end; + /* Segment buffers */ struct list_head sc_segbufs; unsigned long sc_segbuf_nblocks; @@ -221,8 +228,8 @@ extern void nilfs_destroy_transaction_cache(void); extern void nilfs_relax_pressure_in_lock(struct super_block *); extern int nilfs_construct_segment(struct super_block *); -extern int nilfs_construct_dsync_segment(struct super_block *, - struct inode *); +extern int nilfs_construct_dsync_segment(struct super_block *, struct inode *, + loff_t, loff_t); extern void nilfs_flush_segment(struct super_block *, ino_t); extern int nilfs_clean_segments(struct super_block *, void __user *); |