Merge branch 'linus' into sched/core

Merge reason: we'll queue up dependent patches.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 9 insertions, 4 deletions

diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 981bfa32121..49ada95209d 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -683,16 +683,21 @@ int gfs2_rindex_update(struct gfs2_sbd *sdp)
 	struct gfs2_glock *gl = ip->i_gl;
 	struct gfs2_holder ri_gh;
 	int error = 0;
+	int unlock_required = 0;
 
 	/* Read new copy from disk if we don't have the latest */
 	if (!sdp->sd_rindex_uptodate) {
 		mutex_lock(&sdp->sd_rindex_mutex);
-		error = gfs2_glock_nq_init(gl, LM_ST_SHARED, 0, &ri_gh);
-		if (error)
-			return error;
+		if (!gfs2_glock_is_locked_by_me(gl)) {
+			error = gfs2_glock_nq_init(gl, LM_ST_SHARED, 0, &ri_gh);
+			if (error)
+				return error;
+			unlock_required = 1;
+		}
 		if (!sdp->sd_rindex_uptodate)
 			error = gfs2_ri_update(ip);
-		gfs2_glock_dq_uninit(&ri_gh);
+		if (unlock_required)
+			gfs2_glock_dq_uninit(&ri_gh);
 		mutex_unlock(&sdp->sd_rindex_mutex);
 	}