From 9da10e8da3b3e126d82973e2147ba47767fb3b0e Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Tue, 29 Aug 2017 10:20:33 +0200 Subject: [PATCH] drbd: change list_for_each_safe to while(list_first_entry_or_null) Two instances of list_for_each_safe can drop their tmp element, they really just peel off each element in turn from the start of the list. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg Signed-off-by: Jens Axboe --- drivers/block/drbd/drbd_req.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 5cf43f13e7eb..ae02aa397c8f 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1479,12 +1479,12 @@ static bool prepare_al_transaction_nonblock(struct drbd_device *device, struct list_head *pending, struct list_head *later) { - struct drbd_request *req, *tmp; + struct drbd_request *req; int wake = 0; int err; spin_lock_irq(&device->al_lock); - list_for_each_entry_safe(req, tmp, incoming, tl_requests) { + while ((req = list_first_entry_or_null(incoming, struct drbd_request, tl_requests))) { err = drbd_al_begin_io_nonblock(device, &req->i); if (err == -ENOBUFS) break; @@ -1503,9 +1503,9 @@ static bool prepare_al_transaction_nonblock(struct drbd_device *device, void send_and_submit_pending(struct drbd_device *device, struct list_head *pending) { - struct drbd_request *req, *tmp; + struct drbd_request *req; - list_for_each_entry_safe(req, tmp, pending, tl_requests) { + while ((req = list_first_entry_or_null(pending, struct drbd_request, tl_requests))) { req->rq_state |= RQ_IN_ACT_LOG; req->in_actlog_jif = jiffies; atomic_dec(&device->ap_actlog_cnt);