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get rid of open-coded grab_super() in get_active_super()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2010-03-21 22:34:11 -04:00
parent 79d7e39ee1
commit 389b8be6ef
1 changed files with 3 additions and 16 deletions
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19
fs/super.c
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@ -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);