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(parent: c8cdd92) | patch
gfs2: Add missing rcu locking for glock lookup
authorAndrew Price <anprice@redhat.com>
Wed, 22 Feb 2017 17:05:03 +0000 (12:05 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 12 Mar 2017 05:41:50 +0000 (06:41 +0100)
commit4cf918c804c657c3a8b9cd4bb46171315bdfad62
tree714d8363a3aec818f0d459b6a74af1a8d9ab1664tree | snapshot
parentc8cdd9234caced510db1a03491af475938f9855acommit | diff
gfs2: Add missing rcu locking for glock lookup

commit f38e5fb95a1f8feda88531eedc98f69b24748712 upstream.

We must hold the rcu read lock across looking up glocks and trying to
bump their refcount to prevent the glocks from being freed in between.

Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/gfs2/glock.c diff | blob | history