gfs2: Protect gl->gl_object by spin lock

Put all remaining accesses to gl->gl_object under the
gl->gl_lockref.lock spinlock to prevent races.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 96a7487b09b6..db427658ccd9 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -2032,8 +2032,8 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
         gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE);
 
         for (x = 0; x < rlist.rl_rgrps; x++) {
-                struct gfs2_rgrpd *rgd;
-                rgd = rlist.rl_ghs[x].gh_gl->gl_object;
+                struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(rlist.rl_ghs[x].gh_gl);
+
                 rg_blocks += rgd->rd_length;
         }