From: Christoph Hellwig <hch@lst.de> To: Jens Axboe <axboe@kernel.dk> Cc: Song Liu <song@kernel.org>, Hans de Goede <hdegoede@redhat.com>, Coly Li <colyli@suse.de>, Richard Weinberger <richard@nod.at>, Minchan Kim <minchan@kernel.org>, Johannes Thumshirn <Johannes.Thumshirn@wdc.com>, Justin Sanders <justin@coraid.com>, linux-mtd@lists.infradead.org, dm-devel@redhat.com, linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, drbd-dev@lists.linbit.com, linux-raid@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org, Jan Kara <jack@suse.cz>, Johannes Thumshirn <johannes.thumshirn@wdc.com> Subject: [PATCH 02/13] drbd: remove dead code in device_to_statistics Date: Mon, 21 Sep 2020 10:07:23 +0200 [thread overview] Message-ID: <20200921080734.452759-3-hch@lst.de> (raw) In-Reply-To: <20200921080734.452759-1-hch@lst.de> Ever since the switch to blk-mq, a lower device not used for VM writeback will not be marked congested, so the check will never trigger. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> --- drivers/block/drbd/drbd_nl.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 43c8ae4d9fca81..aaff5bde391506 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -3370,7 +3370,6 @@ static void device_to_statistics(struct device_statistics *s, if (get_ldev(device)) { struct drbd_md *md = &device->ldev->md; u64 *history_uuids = (u64 *)s->history_uuids; - struct request_queue *q; int n; spin_lock_irq(&md->uuid_lock); @@ -3384,11 +3383,6 @@ static void device_to_statistics(struct device_statistics *s, spin_unlock_irq(&md->uuid_lock); s->dev_disk_flags = md->flags; - q = bdev_get_queue(device->ldev->backing_bdev); - s->dev_lower_blocked = - bdi_congested(q->backing_dev_info, - (1 << WB_async_congested) | - (1 << WB_sync_congested)); put_ldev(device); } s->dev_size = drbd_get_capacity(device->this_bdev); -- 2.28.0
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de> To: Jens Axboe <axboe@kernel.dk> Cc: linux-raid@vger.kernel.org, Hans de Goede <hdegoede@redhat.com>, Justin Sanders <justin@coraid.com>, Jan Kara <jack@suse.cz>, Minchan Kim <minchan@kernel.org>, Johannes Thumshirn <johannes.thumshirn@wdc.com>, linux-bcache@vger.kernel.org, Coly Li <colyli@suse.de>, linux-block@vger.kernel.org, Song Liu <song@kernel.org>, dm-devel@redhat.com, linux-mtd@lists.infradead.org, Richard Weinberger <richard@nod.at>, linux-fsdevel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, drbd-dev@lists.linbit.com Subject: [PATCH 02/13] drbd: remove dead code in device_to_statistics Date: Mon, 21 Sep 2020 10:07:23 +0200 [thread overview] Message-ID: <20200921080734.452759-3-hch@lst.de> (raw) In-Reply-To: <20200921080734.452759-1-hch@lst.de> Ever since the switch to blk-mq, a lower device not used for VM writeback will not be marked congested, so the check will never trigger. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> --- drivers/block/drbd/drbd_nl.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 43c8ae4d9fca81..aaff5bde391506 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -3370,7 +3370,6 @@ static void device_to_statistics(struct device_statistics *s, if (get_ldev(device)) { struct drbd_md *md = &device->ldev->md; u64 *history_uuids = (u64 *)s->history_uuids; - struct request_queue *q; int n; spin_lock_irq(&md->uuid_lock); @@ -3384,11 +3383,6 @@ static void device_to_statistics(struct device_statistics *s, spin_unlock_irq(&md->uuid_lock); s->dev_disk_flags = md->flags; - q = bdev_get_queue(device->ldev->backing_bdev); - s->dev_lower_blocked = - bdi_congested(q->backing_dev_info, - (1 << WB_async_congested) | - (1 << WB_sync_congested)); put_ldev(device); } s->dev_size = drbd_get_capacity(device->this_bdev); -- 2.28.0 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2020-09-21 8:08 UTC|newest] Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-21 8:07 bdi cleanups v6 Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` [PATCH 01/13] fs: remove the unused SB_I_MULTIROOT flag Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig [this message] 2020-09-21 8:07 ` [PATCH 02/13] drbd: remove dead code in device_to_statistics Christoph Hellwig 2020-09-21 8:07 ` [PATCH 03/13] bcache: inherit the optimal I/O size Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 9:54 ` Coly Li 2020-09-21 9:54 ` Coly Li 2020-09-21 14:00 ` Christoph Hellwig 2020-09-21 14:00 ` Christoph Hellwig 2020-09-21 14:00 ` Christoph Hellwig 2020-09-21 15:09 ` Coly Li 2020-09-21 15:09 ` Coly Li 2020-09-21 18:18 ` Christoph Hellwig 2020-09-21 18:18 ` Christoph Hellwig 2020-09-22 8:44 ` Jan Kara 2020-09-22 8:44 ` Jan Kara 2020-09-22 8:44 ` Jan Kara 2020-09-22 9:39 ` Coly Li 2020-09-22 9:39 ` Coly Li 2020-09-21 8:07 ` [PATCH 04/13] aoe: set an " Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-22 8:45 ` Jan Kara 2020-09-22 8:45 ` Jan Kara 2020-09-21 8:07 ` [PATCH 05/13] bdi: initialize ->ra_pages and ->io_pages in bdi_init Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-22 8:49 ` Jan Kara 2020-09-22 8:49 ` Jan Kara 2020-09-22 8:49 ` Jan Kara 2020-09-23 15:16 ` Christoph Hellwig 2020-09-23 15:16 ` Christoph Hellwig 2020-09-21 8:07 ` [PATCH 06/13] md: update the optimal I/O size on reshape Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` [PATCH 07/13] block: lift setting the readahead size into the block layer Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-22 9:13 ` Jan Kara 2020-09-22 9:13 ` Jan Kara 2020-09-22 9:51 ` Coly Li 2020-09-22 9:51 ` Coly Li 2020-09-21 8:07 ` [PATCH 08/13] bdi: remove BDI_CAP_CGROUP_WRITEBACK Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` [PATCH 09/13] bdi: remove BDI_CAP_SYNCHRONOUS_IO Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` [PATCH 10/13] mm: use SWP_SYNCHRONOUS_IO more intelligently Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` [PATCH 11/13] bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` [PATCH 12/13] bdi: invert BDI_CAP_NO_ACCT_WB Christoph Hellwig 2020-09-21 8:07 ` Christoph Hellwig 2020-09-21 8:07 ` [PATCH 13/13] bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag Christoph Hellwig 2020-09-21 8:07 ` [PATCH 13/13] bdi: replace BDI_CAP_NO_{WRITEBACK, ACCT_DIRTY} " Christoph Hellwig 2020-09-24 6:51 bdi cleanups v7 Christoph Hellwig 2020-09-24 6:51 ` [PATCH 02/13] drbd: remove dead code in device_to_statistics Christoph Hellwig 2020-09-24 6:51 ` Christoph Hellwig 2020-09-24 6:51 ` Christoph Hellwig
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