btrfs: factor btrfs_init_scrub() out of open_ctree()

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
[renamed to btrfs_init_scrub]
Signed-off-by: David Sterba <dsterba@suse.cz>
(cherry picked from commit 638aa7ed4667f63ec45b264d1b6e259a79638733)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index bfc91b383ab75c29acbbf031548e986f60b7bf97..c3c5d07b9895b7df320bd035e74588df3d327b28 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2148,6 +2148,17 @@ void btrfs_free_fs_roots(struct btrfs_fs_info *fs_info)
        }
 }
 
+static void btrfs_init_scrub(struct btrfs_fs_info *fs_info)
+{
+       mutex_init(&fs_info->scrub_lock);
+       atomic_set(&fs_info->scrubs_running, 0);
+       atomic_set(&fs_info->scrub_pause_req, 0);
+       atomic_set(&fs_info->scrubs_paused, 0);
+       atomic_set(&fs_info->scrub_cancel_req, 0);
+       init_waitqueue_head(&fs_info->scrub_pause_wait);
+       fs_info->scrub_workers_refcnt = 0;
+}
+
 int open_ctree(struct super_block *sb,
               struct btrfs_fs_devices *fs_devices,
               char *options)
@@ -2295,14 +2306,8 @@ int open_ctree(struct super_block *sb,
        }
        btrfs_init_delayed_root(fs_info->delayed_root);
 
-       mutex_init(&fs_info->scrub_lock);
-       atomic_set(&fs_info->scrubs_running, 0);
-       atomic_set(&fs_info->scrub_pause_req, 0);
-       atomic_set(&fs_info->scrubs_paused, 0);
-       atomic_set(&fs_info->scrub_cancel_req, 0);
+       btrfs_init_scrub(fs_info);
        init_waitqueue_head(&fs_info->replace_wait);
-       init_waitqueue_head(&fs_info->scrub_pause_wait);
-       fs_info->scrub_workers_refcnt = 0;
 #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
        fs_info->check_integrity_print_mask = 0;
 #endif