linux-kernel - [PATCH 4.9 02/66] orangefs: use list_for_each_entry_safe in purge_waiting

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Date:   Mon, 29 Jan 2018 13:56:26 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Martin Brandenburg <martin@...ibond.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH 4.9 02/66] orangefs: use list_for_each_entry_safe in purge_waiting_ops

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Martin Brandenburg <martin@...ibond.com>

commit 0afc0decf247f65b7aba666a76a0a68adf4bc435 upstream.

set_op_state_purged can delete the op.

Signed-off-by: Martin Brandenburg <martin@...ibond.com>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/orangefs/waitqueue.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/orangefs/waitqueue.c
+++ b/fs/orangefs/waitqueue.c
@@ -28,10 +28,10 @@ static void orangefs_clean_up_interrupte
  */
 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),