linux-kernel - [PATCH 1/2] orangefs: use list_for_each_entry_safe in purge_waiting

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Date:   Mon, 22 Jan 2018 15:44:51 -0500
From:   Martin Brandenburg <martin@...ibond.com>
To:     torvalds@...ux-foundation.org, hubcap@...ibond.com,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        devel@...ts.orangefs.org
Cc:     Martin Brandenburg <martin@...ibond.com>, stable@...r.kernel.org
Subject: [PATCH 1/2] orangefs: use list_for_each_entry_safe in purge_waiting_ops

set_op_state_purged can delete the op.

Signed-off-by: Martin Brandenburg <martin@...ibond.com>
Cc: stable@...r.kernel.org
---
 fs/orangefs/waitqueue.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/orangefs/waitqueue.c b/fs/orangefs/waitqueue.c
index 835c6e148afc..0577d6dba8c8 100644
--- a/fs/orangefs/waitqueue.c
+++ b/fs/orangefs/waitqueue.c
@@ -29,10 +29,10 @@ static void orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s
  */
 void purge_waiting_ops(void)
 {
-	struct orangefs_kernel_op_s *op;
+	struct orangefs_kernel_op_s *op, *tmp;
 
 	spin_lock(&orangefs_request_list_lock);
-	list_for_each_entry(op, &orangefs_request_list, list) {
+	list_for_each_entry_safe(op, tmp, &orangefs_request_list, list) {
 		gossip_debug(GOSSIP_WAIT_DEBUG,
 			     "pvfs2-client-core: purging op tag %llu %s\n",
 			     llu(op->tag),
-- 
2.15.1