diff options
| author | Joern Engel <joern@wohnheim.fh-wedel.de> | 2007-10-16 23:30:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:43:02 -0700 |
| commit | 1c0eeaf5698597146ed9b873e2f9e0961edcf0f9 (patch) | |
| tree | 5265eac8437e8ce517a62db8fe2bd99db5b7019b /include/linux/writeback.h | |
| parent | 2e6883bdf49abd0e7f0d9b6297fc3be7ebb2250b (diff) | |
introduce I_SYNC
I_LOCK was used for several unrelated purposes, which caused deadlock
situations in certain filesystems as a side effect. One of the purposes
now uses the new I_SYNC bit.
Also document the various bits and change their order from historical to
logical.
[bunk@stusta.de: make fs/inode.c:wake_up_inode() static]
Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de>
Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: David Chinner <dgc@sgi.com>
Cc: Anton Altaparmakov <aia21@cam.ac.uk>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/writeback.h')
| -rw-r--r-- | include/linux/writeback.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 1200868a5de..bef7d66601c 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -69,7 +69,6 @@ struct writeback_control { * fs/fs-writeback.c */ void writeback_inodes(struct writeback_control *wbc); -void wake_up_inode(struct inode *inode); int inode_wait(void *); void sync_inodes_sb(struct super_block *, int wait); void sync_inodes(int wait); @@ -81,6 +80,13 @@ static inline void wait_on_inode(struct inode *inode) wait_on_bit(&inode->i_state, __I_LOCK, inode_wait, TASK_UNINTERRUPTIBLE); } +static inline void inode_sync_wait(struct inode *inode) +{ + might_sleep(); + wait_on_bit(&inode->i_state, __I_SYNC, inode_wait, + TASK_UNINTERRUPTIBLE); +} + /* * mm/page-writeback.c |