diff mbox

btrfs: wake up transaction thread upon remount

Message ID 1392914887-5270-1-git-send-email-jmaggard10@gmail.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Justin Maggard Feb. 20, 2014, 4:48 p.m. UTC
Now that we can adjust the commit interval with a remount, we need
to wake up the transaction thread or else he will continue to sleep
until the previous transaction interval has elapsed before waking
up.  So, if we go from a large commit interval to something smaller,
the transaction thread will not wake up until the large interval has
expired.  This also causes the cleaner thread to stay sleeping, since
it gets woken up by the transaction thread.

Fix it by simply waking up the transaction thread during a remount.

Signed-off-by: Justin Maggard <jmaggard10@gmail.com>
---
 fs/btrfs/super.c |    1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index d04db81..426b7c6 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1479,6 +1479,7 @@  static int btrfs_remount(struct super_block *sb, int *flags, char *data)
 		sb->s_flags &= ~MS_RDONLY;
 	}
 out:
+	wake_up_process(fs_info->transaction_kthread);
 	btrfs_remount_cleanup(fs_info, old_opts);
 	return 0;