Verify at runtime that __pg_init_all_paths() is called with
multipath.lock held if lockdep is enabled.

Signed-off-by: Bart Van Assche <bart.vanass...@sandisk.com>
Reviewed-by: Hannes Reinecke <h...@suse.com>
---
 drivers/md/dm-mpath.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index fc3e7f028110..4e4d53faf2d4 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -298,6 +298,8 @@ static int __pg_init_all_paths(struct multipath *m)
        struct pgpath *pgpath;
        unsigned long pg_init_delay = 0;
 
+       lockdep_assert_held(&m->lock);
+
        if (atomic_read(&m->pg_init_in_progress) || 
test_bit(MPATHF_PG_INIT_DISABLED, &m->flags))
                return 0;
 
-- 
2.12.2

--
dm-devel mailing list
dm-devel@redhat.com
https://www.redhat.com/mailman/listinfo/dm-devel

Reply via email to