From: Damien Le Moal <damien.lemoal@opensource.wdc.com>
To: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>
Cc: "Jan Hoeppner" <hoeppner@linux.ibm.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Jason Wang" <jasowang@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: Re: [dm-devel] [PATCH 05/11] dm-zoned: don't set the discard_alignment queue limit
Date: Mon, 18 Apr 2022 17:00:11 +0900 [thread overview]
Message-ID: <fd915a51-035f-d5c6-42a1-c517e3d1f1b1@opensource.wdc.com> (raw)
In-Reply-To: <20220418045314.360785-6-hch@lst.de>
On 4/18/22 13:53, Christoph Hellwig wrote:
> 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 dm-zoned is mostly
> harmless but also useless.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> drivers/md/dm-zoned-target.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
> index cac295cc8840e..0ec5d8b9b1a4e 100644
> --- a/drivers/md/dm-zoned-target.c
> +++ b/drivers/md/dm-zoned-target.c
> @@ -1001,7 +1001,7 @@ static void dmz_io_hints(struct dm_target *ti, struct queue_limits *limits)
> blk_limits_io_min(limits, DMZ_BLOCK_SIZE);
> blk_limits_io_opt(limits, DMZ_BLOCK_SIZE);
>
> - limits->discard_alignment = DMZ_BLOCK_SIZE;
> + limits->discard_alignment = 0;
> limits->discard_granularity = DMZ_BLOCK_SIZE;
> limits->max_discard_sectors = chunk_sectors;
> limits->max_hw_discard_sectors = chunk_sectors
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
--
Damien Le Moal
Western Digital Research
WARNING: multiple messages have this Message-ID (diff)
From: Damien Le Moal <damien.lemoal@opensource.wdc.com>
To: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>
Cc: "Jan Hoeppner" <hoeppner@linux.ibm.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Jason Wang" <jasowang@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,
"Mike Snitzer" <snitzer@kernel.org>,
linux-um@lists.infradead.org,
"Josef Bacik" <josef@toxicpanda.com>,
nbd@other.debian.org, linux-raid@vger.kernel.org,
"Stefan Haberland" <sth@linux.ibm.com>,
linux-block@vger.kernel.org,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"Johannes Berg" <johannes@sipsolutions.net>,
"Roger Pau Monné" <roger.pau@citrix.com>
Subject: Re: [dm-devel] [PATCH 05/11] dm-zoned: don't set the discard_alignment queue limit
Date: Mon, 18 Apr 2022 17:00:11 +0900 [thread overview]
Message-ID: <fd915a51-035f-d5c6-42a1-c517e3d1f1b1@opensource.wdc.com> (raw)
In-Reply-To: <20220418045314.360785-6-hch@lst.de>
On 4/18/22 13:53, Christoph Hellwig wrote:
> 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 dm-zoned is mostly
> harmless but also useless.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> drivers/md/dm-zoned-target.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
> index cac295cc8840e..0ec5d8b9b1a4e 100644
> --- a/drivers/md/dm-zoned-target.c
> +++ b/drivers/md/dm-zoned-target.c
> @@ -1001,7 +1001,7 @@ static void dmz_io_hints(struct dm_target *ti, struct queue_limits *limits)
> blk_limits_io_min(limits, DMZ_BLOCK_SIZE);
> blk_limits_io_opt(limits, DMZ_BLOCK_SIZE);
>
> - limits->discard_alignment = DMZ_BLOCK_SIZE;
> + limits->discard_alignment = 0;
> limits->discard_granularity = DMZ_BLOCK_SIZE;
> limits->max_discard_sectors = chunk_sectors;
> limits->max_hw_discard_sectors = chunk_sectors
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
--
Damien Le Moal
Western Digital Research
--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel
WARNING: multiple messages have this Message-ID (diff)
From: Damien Le Moal <damien.lemoal@opensource.wdc.com>
To: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>
Cc: "Jan Hoeppner" <hoeppner@linux.ibm.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Jason Wang" <jasowang@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: Re: [dm-devel] [PATCH 05/11] dm-zoned: don't set the discard_alignment queue limit
Date: Mon, 18 Apr 2022 17:00:11 +0900 [thread overview]
Message-ID: <fd915a51-035f-d5c6-42a1-c517e3d1f1b1@opensource.wdc.com> (raw)
In-Reply-To: <20220418045314.360785-6-hch@lst.de>
On 4/18/22 13:53, Christoph Hellwig wrote:
> 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 dm-zoned is mostly
> harmless but also useless.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> drivers/md/dm-zoned-target.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
> index cac295cc8840e..0ec5d8b9b1a4e 100644
> --- a/drivers/md/dm-zoned-target.c
> +++ b/drivers/md/dm-zoned-target.c
> @@ -1001,7 +1001,7 @@ static void dmz_io_hints(struct dm_target *ti, struct queue_limits *limits)
> blk_limits_io_min(limits, DMZ_BLOCK_SIZE);
> blk_limits_io_opt(limits, DMZ_BLOCK_SIZE);
>
> - limits->discard_alignment = DMZ_BLOCK_SIZE;
> + limits->discard_alignment = 0;
> limits->discard_granularity = DMZ_BLOCK_SIZE;
> limits->max_discard_sectors = chunk_sectors;
> limits->max_hw_discard_sectors = chunk_sectors
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
--
Damien Le Moal
Western Digital Research
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next prev parent reply other threads:[~2022-04-18 8:00 UTC|newest]
Thread overview: 99+ 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
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [PATCH 01/11] ubd: don't set the discard_alignment queue limit Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [PATCH 02/11] nbd: " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [PATCH 03/11] null_blk: " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 8:01 ` [dm-devel] " Damien Le Moal
2022-04-18 8:01 ` Damien Le Moal
2022-04-18 8:01 ` Damien Le Moal
2022-04-18 21:22 ` Chaitanya Kulkarni
2022-04-18 21:22 ` Chaitanya Kulkarni
2022-04-18 21:22 ` [dm-devel] " Chaitanya Kulkarni
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 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` 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 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 8:00 ` Damien Le Moal [this message]
2022-04-18 8:00 ` [dm-devel] " Damien Le Moal
2022-04-18 8:00 ` Damien Le Moal
2022-04-18 4:53 ` [PATCH 06/11] raid5: " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-25 21:08 ` Song Liu
2022-04-25 21:08 ` Song Liu
2022-04-25 21:08 ` [dm-devel] " Song Liu
2022-04-18 4:53 ` [PATCH 07/11] dasd: " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-05-06 12:56 ` Jan Höppner
2022-05-06 12:56 ` Jan Höppner
2022-05-06 12:56 ` [dm-devel] " Jan Höppner
2022-04-18 4:53 ` [PATCH 08/11] loop: remove a spurious clear of discard_alignment Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 8:04 ` [dm-devel] " Damien Le Moal
2022-04-18 8:04 ` Damien Le Moal
2022-04-18 8:04 ` Damien Le Moal
2022-04-18 21:21 ` Chaitanya Kulkarni
2022-04-18 21:21 ` Chaitanya Kulkarni
2022-04-18 21:21 ` [dm-devel] " Chaitanya Kulkarni
2022-04-18 4:53 ` [PATCH 09/11] nvme: " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 8:02 ` [dm-devel] " Damien Le Moal
2022-04-18 8:02 ` Damien Le Moal
2022-04-18 8:02 ` Damien Le Moal
2022-04-18 21:23 ` Chaitanya Kulkarni
2022-04-18 21:23 ` Chaitanya Kulkarni
2022-04-18 21:23 ` [dm-devel] " Chaitanya Kulkarni
2022-04-26 14:25 ` Sagi Grimberg
2022-04-26 14:25 ` Sagi Grimberg
2022-04-26 14:25 ` [dm-devel] " Sagi Grimberg
2022-04-18 4:53 ` [PATCH 10/11] rnbd-srv: use bdev_discard_alignment Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 8:02 ` [dm-devel] " Damien Le Moal
2022-04-18 8:02 ` Damien Le Moal
2022-04-18 8:02 ` Damien Le Moal
2022-04-19 4:51 ` Jinpu Wang
2022-04-19 4:51 ` Jinpu Wang
2022-04-19 4:51 ` [dm-devel] " Jinpu Wang
2022-04-18 4:53 ` [PATCH 11/11] xen-blkback: " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 4:53 ` [dm-devel] " Christoph Hellwig
2022-04-18 4:53 ` Christoph Hellwig
2022-04-18 8:03 ` [dm-devel] " Damien Le Moal
2022-04-18 8:03 ` Damien Le Moal
2022-04-18 8:03 ` Damien Le Moal
2022-04-26 4:16 ` fix and cleanup discard_alignment handling Martin K. Petersen
2022-04-26 4:16 ` Martin K. Petersen
2022-04-26 4:16 ` [dm-devel] " Martin K. Petersen
2022-04-26 4:16 ` Martin K. Petersen
2022-05-02 16:46 ` Christoph Hellwig
2022-05-02 16:46 ` Christoph Hellwig
2022-05-02 16:46 ` [dm-devel] " Christoph Hellwig
2022-05-02 16:46 ` Christoph Hellwig
2022-05-03 16:39 ` Jens Axboe
2022-05-03 16:39 ` Jens Axboe
2022-05-03 16:39 ` [dm-devel] " Jens Axboe
2022-05-03 16:39 ` Jens Axboe
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