diff options
| -rw-r--r-- | fs/super.c | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/fs/super.c b/fs/super.c index 156eae5ed503..d8c8b1d2d010 100644 --- a/fs/super.c +++ b/fs/super.c @@ -487,22 +487,9 @@ struct super_block *get_active_super(struct block_device *bdev) if (sb->s_bdev != bdev) continue; - sb->s_count++; - spin_unlock(&sb_lock); - down_write(&sb->s_umount); - if (sb->s_root) { - spin_lock(&sb_lock); - if (sb->s_count > S_BIAS) { - atomic_inc(&sb->s_active); - sb->s_count--; - spin_unlock(&sb_lock); - return sb; - } - spin_unlock(&sb_lock); - } - up_write(&sb->s_umount); - put_super(sb); - yield(); + if (grab_super(sb)) /* drops sb_lock */ + return sb; + spin_lock(&sb_lock); } spin_unlock(&sb_lock); |