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From 0afc0decf247f65b7aba666a76a0a68adf4bc435 Mon Sep 17 00:00:00 2001
From: Martin Brandenburg <martin@omnibond.com>
Date: Mon, 22 Jan 2018 15:44:51 -0500
Subject: [PATCH] orangefs: use list_for_each_entry_safe in purge_waiting_ops
Git-commit: 0afc0decf247f65b7aba666a76a0a68adf4bc435
Patch-mainline: v4.15
References: bsc#1051510

set_op_state_purged can delete the op.

Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 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),
-- 
2.19.0