[PATCH 4/5] xfs: use xfs_ilock_map_shared in xfs_attr_get

[Christoph Hellwig]

On Fri, Dec 06, 2013 at 07:59:10AM +1100, Dave Chinner wrote:
> I think the locking here should be moved inside xfs_attr_get_int()

Or we could just kill xfs_attr_get_int..

> so that it uses the same locking pattern as xfs_attr_set() and
> xfs_attr_remove().
> 
> Also, xfs_attr_list() needs this treatment (the attr version of
> readdir) as well (and it has the locking inside xfs_attr_list_int(),
> too ;).
>
> It looks like xfs_readlink needs fixing, too.

Haven't really done an in-depth audit, mostly just looking at
where the asserts kick in..