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Message-Id: <20200915151829.1767176-4-hch@lst.de>
Date: Tue, 15 Sep 2020 17:18:20 +0200
From: Christoph Hellwig <hch@....de>
To: Jens Axboe <axboe@...nel.dk>
Cc: Song Liu <song@...nel.org>, Hans de Goede <hdegoede@...hat.com>,
Richard Weinberger <richard@....at>,
Minchan Kim <minchan@...nel.org>,
Johannes Thumshirn <Johannes.Thumshirn@....com>,
linux-mtd@...ts.infradead.org, dm-devel@...hat.com,
linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
drbd-dev@...ts.linbit.com, linux-raid@...r.kernel.org,
linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
cgroups@...r.kernel.org,
Johannes Thumshirn <johannes.thumshirn@....com>
Subject: [PATCH 03/12] drbd: remove RB_CONGESTED_REMOTE
This case isn't ever used.
Signed-off-by: Christoph Hellwig <hch@....de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@....com>
---
drivers/block/drbd/drbd_req.c | 4 ----
include/linux/drbd.h | 1 -
2 files changed, 5 deletions(-)
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 5c975af9c15fb8..481bc34fcf386a 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -901,13 +901,9 @@ static bool drbd_may_do_local_read(struct drbd_device *device, sector_t sector,
static bool remote_due_to_read_balancing(struct drbd_device *device, sector_t sector,
enum drbd_read_balancing rbm)
{
- struct backing_dev_info *bdi;
int stripe_shift;
switch (rbm) {
- case RB_CONGESTED_REMOTE:
- bdi = device->ldev->backing_bdev->bd_disk->queue->backing_dev_info;
- return bdi_read_congested(bdi);
case RB_LEAST_PENDING:
return atomic_read(&device->local_cnt) >
atomic_read(&device->ap_pending_cnt) + atomic_read(&device->rs_pending_cnt);
diff --git a/include/linux/drbd.h b/include/linux/drbd.h
index 5755537b51b114..6a8286132751df 100644
--- a/include/linux/drbd.h
+++ b/include/linux/drbd.h
@@ -94,7 +94,6 @@ enum drbd_read_balancing {
RB_PREFER_REMOTE,
RB_ROUND_ROBIN,
RB_LEAST_PENDING,
- RB_CONGESTED_REMOTE,
RB_32K_STRIPING,
RB_64K_STRIPING,
RB_128K_STRIPING,
--
2.28.0
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