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authorJoern Engel <joern@wohnheim.fh-wedel.de>2007-10-16 23:30:44 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:43:02 -0700
commit1c0eeaf5698597146ed9b873e2f9e0961edcf0f9 (patch)
tree5265eac8437e8ce517a62db8fe2bd99db5b7019b /include/linux/writeback.h
parent2e6883bdf49abd0e7f0d9b6297fc3be7ebb2250b (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.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 1200868a5dee..bef7d66601cb 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