From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: "Jan Hoeppner" <hoeppner@linux.ibm.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
linux-nvme@lists.infradead.org,
virtualization@lists.linux-foundation.org,
"Song Liu" <song@kernel.org>,
dm-devel@redhat.com, "Md. Haris Iqbal" <haris.iqbal@ionos.com>,
"Jack Wang" <jinpu.wang@ionos.com>,
linux-s390@vger.kernel.org, "Richard Weinberger" <richard@nod.at>,
xen-devel@lists.xenproject.org, linux-um@lists.infradead.org,
"Mike Snitzer" <snitzer@kernel.org>,
"Josef Bacik" <josef@toxicpanda.com>,
nbd@other.debian.org, linux-block@vger.kernel.org,
"Stefan Haberland" <sth@linux.ibm.com>,
linux-raid@vger.kernel.org,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"Johannes Berg" <johannes@sipsolutions.net>,
"Roger Pau Monné" <roger.pau@citrix.com>
Subject: [PATCH 01/11] ubd: don't set the discard_alignment queue limit
Date: Mon, 18 Apr 2022 06:53:04 +0200 [thread overview]
Message-ID: <20220418045314.360785-2-hch@lst.de> (raw)
In-Reply-To: <20220418045314.360785-1-hch@lst.de>
The discard_alignment queue limit is named a bit misleading means the
offset into the block device at which the discard granularity starts.
Setting it to the discard granularity as done by ubd is mostly harmless
but also useless.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/um/drivers/ubd_kern.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 085ffdf98e57e..c4344b67628dd 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -799,7 +799,6 @@ static int ubd_open_dev(struct ubd *ubd_dev)
}
if (ubd_dev->no_trim == 0) {
ubd_dev->queue->limits.discard_granularity = SECTOR_SIZE;
- ubd_dev->queue->limits.discard_alignment = SECTOR_SIZE;
blk_queue_max_discard_sectors(ubd_dev->queue, UBD_MAX_REQUEST);
blk_queue_max_write_zeroes_sectors(ubd_dev->queue, UBD_MAX_REQUEST);
}
--
2.30.2
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next prev parent reply other threads:[~2022-04-18 4:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-18 4:53 fix and cleanup discard_alignment handling Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig [this message]
2022-04-18 4:53 ` [PATCH 02/11] nbd: don't set the discard_alignment queue limit Christoph Hellwig
2022-04-18 4:53 ` [PATCH 03/11] null_blk: " Christoph Hellwig
2022-04-18 4:53 ` [PATCH 04/11] virtio_blk: fix the discard_granularity and discard_alignment queue limits Christoph Hellwig
2022-04-18 4:53 ` [PATCH 05/11] dm-zoned: don't set the discard_alignment queue limit Christoph Hellwig
2022-04-18 4:53 ` [PATCH 06/11] raid5: " Christoph Hellwig
2022-04-18 4:53 ` [PATCH 07/11] dasd: " Christoph Hellwig
2022-04-18 4:53 ` [PATCH 08/11] loop: remove a spurious clear of discard_alignment Christoph Hellwig
2022-04-18 4:53 ` [PATCH 09/11] nvme: " Christoph Hellwig
2022-04-18 4:53 ` [PATCH 10/11] rnbd-srv: use bdev_discard_alignment Christoph Hellwig
2022-04-18 4:53 ` [PATCH 11/11] xen-blkback: " Christoph Hellwig
2022-04-26 4:16 ` fix and cleanup discard_alignment handling Martin K. Petersen
2022-05-02 16:46 ` Christoph Hellwig
2022-05-03 16:39 ` Jens Axboe
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