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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-05-07 21:01:30 +0300 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-07-14 19:10:52 +0300 |
| commit | 4ee6afd34409d296782a5b667d7991b1050e910a (patch) | |
| tree | 2a9aa6e7361d923afc60a2a5ee8cb76542152ca8 | |
| parent | ae8547b0a9e5d718ce272ddc48f91703a0f52a0b (diff) | |
| download | lwn-4ee6afd34409d296782a5b667d7991b1050e910a.tar.gz lwn-4ee6afd34409d296782a5b667d7991b1050e910a.zip | |
VFS: export sync_sb_inodes
This patch exports the 'sync_sb_inodes()' which is needed for
UBIFS because it has to force write-back from time to time.
Namely, the UBIFS budgeting subsystem forces write-back when
its pessimistic callculations show that there is no free
space on the media.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| -rw-r--r-- | fs/fs-writeback.c | 11 | ||||
| -rw-r--r-- | include/linux/fs.h | 2 |
2 files changed, 11 insertions, 2 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 16519fe1399c..25adfc3c693a 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -439,8 +439,8 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc) * on the writer throttling path, and we get decent balancing between many * throttled threads: we don't want them all piling up on inode_sync_wait. */ -static void -sync_sb_inodes(struct super_block *sb, struct writeback_control *wbc) +void generic_sync_sb_inodes(struct super_block *sb, + struct writeback_control *wbc) { const unsigned long start = jiffies; /* livelock avoidance */ @@ -526,6 +526,13 @@ sync_sb_inodes(struct super_block *sb, struct writeback_control *wbc) spin_unlock(&inode_lock); return; /* Leave any unwritten inodes on s_io */ } +EXPORT_SYMBOL_GPL(generic_sync_sb_inodes); + +static void sync_sb_inodes(struct super_block *sb, + struct writeback_control *wbc) +{ + generic_sync_sb_inodes(sb, wbc); +} /* * Start writeback of dirty pagecache data against all unlocked inodes. diff --git a/include/linux/fs.h b/include/linux/fs.h index d8e2762ed14d..f9d2aab47eda 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1729,6 +1729,8 @@ static inline void invalidate_remote_inode(struct inode *inode) extern int invalidate_inode_pages2(struct address_space *mapping); extern int invalidate_inode_pages2_range(struct address_space *mapping, pgoff_t start, pgoff_t end); +extern void generic_sync_sb_inodes(struct super_block *sb, + struct writeback_control *wbc); extern int write_inode_now(struct inode *, int); extern int filemap_fdatawrite(struct address_space *); extern int filemap_flush(struct address_space *); |