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authorJan Kara <jack@suse.cz>2009-04-27 16:43:51 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-11 21:36:03 -0400
commit5cee5815d1564bbbd505fea86f4550f1efdb5cd0 (patch)
treeba99c38932dc534bf56f0d7dcfeeca153f50b007 /include
parent429479f031322a0cc5c921ffb2321a51718dc875 (diff)
vfs: Make sys_sync() use fsync_super() (version 4)
It is unnecessarily fragile to have two places (fsync_super() and do_sync()) doing data integrity sync of the filesystem. Alter __fsync_super() to accommodate needs of both callers and use it. So after this patch __fsync_super() is the only place where we gather all the calls needed to properly send all data on a filesystem to disk. Nice bonus is that we get a complete livelock avoidance and write_supers() is now only used for periodic writeback of superblocks. sync_blockdevs() introduced a couple of patches ago is gone now. [build fixes folded] Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h2
-rw-r--r--include/linux/writeback.h1
2 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 41a9907f342..f00df653cf2 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1321,7 +1321,7 @@ struct super_block {
struct rw_semaphore s_umount;
struct mutex s_lock;
int s_count;
- int s_need_sync_fs;
+ int s_need_sync;
atomic_t s_active;
#ifdef CONFIG_SECURITY
void *s_security;
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 93445477f86..3224820c851 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -79,7 +79,6 @@ struct writeback_control {
void writeback_inodes(struct writeback_control *wbc);
int inode_wait(void *);
void sync_inodes_sb(struct super_block *, int wait);
-void sync_inodes(int wait);
/* writeback.h requires fs.h; it, too, is not included from here. */
static inline void wait_on_inode(struct inode *inode)