Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit df40c01a authored by Al Viro's avatar Al Viro
Browse files

In get_super() and user_get_super() restarts are unconditional 



If superblock had been still alive, we would've returned it...

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 1494583d

fs/super.c

+10 −8
Original line number Diff line number Diff line
@@ -441,12 +441,13 @@ struct super_block * get_super(struct block_device *bdev) 
			sb->s_count++;

			spin_unlock(&sb_lock);

			down_read(&sb->s_umount);

			/* still alive? */

			if (sb->s_root)

				return sb;

			up_read(&sb->s_umount);

			/* restart only when sb is no longer on the list */

			/* nope, got unmounted */

			spin_lock(&sb_lock);

			if (__put_super_and_need_restart(sb))

			__put_super(sb);

			goto rescan;

		}

	}
@@ -500,12 +501,13 @@ struct super_block * user_get_super(dev_t dev) 
			sb->s_count++;

			spin_unlock(&sb_lock);

			down_read(&sb->s_umount);

			/* still alive? */

			if (sb->s_root)

				return sb;

			up_read(&sb->s_umount);

			/* restart only when sb is no longer on the list */

			/* nope, got unmounted */

			spin_lock(&sb_lock);

			if (__put_super_and_need_restart(sb))

			__put_super(sb);

			goto rescan;

		}

	}