[GFS2] Fix a bug: scheduling under a spinlock
At some stage, a mutex was added to gfs2_glock_put() without
checking all its call sites. Two of them were called from
under a spinlock causing random delays at various points and
crashes.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index 74cf28e..da49973 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -214,6 +214,8 @@
struct buffer_head *bh;
int retry;
+ BUG_ON(!spin_is_locked(&sdp->sd_log_lock));
+
do {
retry = 0;