author: Jan Kara <jack@suse.cz> 2013-11-12 15:07:51 -0800
committer: Linus Torvalds <torvalds@linux-foundation.org> 2013-11-13 12:09:07 +0900
commit: c4a391b53a72d2df4ee97f96f78c1d5971b47489
parent: 46c77e2bb07eba3b38edfec76873f12942c49dd3
Commit Summary:
Diffstat:
1 file changed, 9 insertions, 6 deletions
diff --git a/fs/sync.c b/fs/sync.c
index 905f3f6b3d85..ff96f99fef64 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -27,10 +27,11 @@
* wait == 1 case since in that case write_inode() functions do
* sync_dirty_buffer() and thus effectively write one block at a time.
*/
-static int __sync_filesystem(struct super_block *sb, int wait)
+static int __sync_filesystem(struct super_block *sb, int wait,
+ unsigned long start)
{
if (wait)
- sync_inodes_sb(sb);
+ sync_inodes_sb(sb, start);
else
writeback_inodes_sb(sb, WB_REASON_SYNC);
@@ -47,6 +48,7 @@ static int __sync_filesystem(struct super_block *sb, int wait)
int sync_filesystem(struct super_block *sb)
{
int ret;
+ unsigned long start = jiffies;
/*
* We need to be protected against the filesystem going from
@@ -60,17 +62,17 @@ int sync_filesystem(struct super_block *sb)
if (sb->s_flags & MS_RDONLY)
return 0;
- ret = __sync_filesystem(sb, 0);
+ ret = __sync_filesystem(sb, 0, start);
if (ret < 0)
return ret;
- return __sync_filesystem(sb, 1);
+ return __sync_filesystem(sb, 1, start);
}
EXPORT_SYMBOL_GPL(sync_filesystem);
static void sync_inodes_one_sb(struct super_block *sb, void *arg)
{
if (!(sb->s_flags & MS_RDONLY))
- sync_inodes_sb(sb);
+ sync_inodes_sb(sb, *((unsigned long *)arg));
}
static void sync_fs_one_sb(struct super_block *sb, void *arg)
@@ -102,9 +104,10 @@ static void fdatawait_one_bdev(struct block_device *bdev, void *arg)
SYSCALL_DEFINE0(sync)
{
int nowait = 0, wait = 1;
+ unsigned long start = jiffies;
wakeup_flusher_threads(0, WB_REASON_SYNC);
- iterate_supers(sync_inodes_one_sb, NULL);
+ iterate_supers(sync_inodes_one_sb, &start);
iterate_supers(sync_fs_one_sb, &nowait);
iterate_supers(sync_fs_one_sb, &wait);
iterate_bdevs(fdatawrite_one_bdev, NULL);