Re: [PATCH] lockfs patch for 2.6

[Chris Mason <mason@xxxxxxxx>]

On Sun, 2004-03-14 at 13:44, Andrew Morton wrote:
> Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
> >
> > + * This takes the block device bd_mount_sem to make sure no new mounts
> >  + * happen on bdev until unlockfs is called.  If a super is found on this
> >  + * block device, we hould a read lock on the s->s_umount sem to make sure
> >  + * nobody unmounts until the snapshot creation is done
> >  + */
> >  +struct super_block *freeze_bdev(struct block_device *bdev)
> 
> I think you do need s_umount, as the comments say.  But this patch doesn't
> touch it.

get_super gives us a read lock on it.

-chris