* [PATCH] dm: give req_size precisely given by user
@ 2018-12-18 17:25 Jaegeuk Kim
2018-12-18 17:45 ` Jens Axboe
2018-12-18 23:47 ` Sasha Levin
0 siblings, 2 replies; 6+ messages in thread
From: Jaegeuk Kim @ 2018-12-18 17:25 UTC (permalink / raw)
To: linux-kernel, linux-f2fs-devel
Cc: Jaegeuk Kim, stable, Jens Axboe, Alasdair Kergon, Mike Snitzer, dm-devel
This patch makes dm be aware of io_pages to assign sane req_size for reads.
Cc: stable@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: dm-devel@redhat.com
Fixes: 9491ae4a ("mm: don't cap request size based on read-ahead setting")
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
drivers/md/dm-table.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 9038c302d5c2..886790428241 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1927,6 +1927,9 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
*/
if (blk_queue_is_zoned(q))
blk_revalidate_disk_zones(t->md->disk);
+
+ /* io_pages is used for readahead */
+ q->backing_dev_info->io_pages = limits->max_sectors >> (PAGE_SHIFT - 9);
}
unsigned int dm_table_get_num_targets(struct dm_table *t)
--
2.19.0.605.g01d371f741-goog
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] dm: give req_size precisely given by user
2018-12-18 17:25 [PATCH] dm: give req_size precisely given by user Jaegeuk Kim
@ 2018-12-18 17:45 ` Jens Axboe
2018-12-18 19:47 ` Mike Snitzer
2018-12-18 23:47 ` Sasha Levin
1 sibling, 1 reply; 6+ messages in thread
From: Jens Axboe @ 2018-12-18 17:45 UTC (permalink / raw)
To: Jaegeuk Kim, linux-kernel, linux-f2fs-devel
Cc: stable, Alasdair Kergon, Mike Snitzer, dm-devel
On 12/18/18 10:25 AM, Jaegeuk Kim wrote:
> This patch makes dm be aware of io_pages to assign sane req_size for reads.
Reviewed-by: Jens Axboe <axboe@kernel.dk>
--
Jens Axboe
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dm: give req_size precisely given by user
2018-12-18 17:45 ` Jens Axboe
@ 2018-12-18 19:47 ` Mike Snitzer
2018-12-18 21:40 ` Jaegeuk Kim
0 siblings, 1 reply; 6+ messages in thread
From: Mike Snitzer @ 2018-12-18 19:47 UTC (permalink / raw)
To: Jens Axboe
Cc: Jaegeuk Kim, linux-kernel, linux-f2fs-devel, dm-devel,
Alasdair Kergon, stable
On Tue, Dec 18 2018 at 12:45pm -0500,
Jens Axboe <axboe@kernel.dk> wrote:
> On 12/18/18 10:25 AM, Jaegeuk Kim wrote:
> > This patch makes dm be aware of io_pages to assign sane req_size for reads.
>
> Reviewed-by: Jens Axboe <axboe@kernel.dk>
>
I've applied this, see:
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-4.21&id=c6d6e9b0f6b4201c77f2cea3964dd122697e3543
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dm: give req_size precisely given by user
2018-12-18 19:47 ` Mike Snitzer
@ 2018-12-18 21:40 ` Jaegeuk Kim
0 siblings, 0 replies; 6+ messages in thread
From: Jaegeuk Kim @ 2018-12-18 21:40 UTC (permalink / raw)
To: Mike Snitzer
Cc: Jens Axboe, linux-kernel, linux-f2fs-devel, dm-devel,
Alasdair Kergon, stable
On 12/18, Mike Snitzer wrote:
> On Tue, Dec 18 2018 at 12:45pm -0500,
> Jens Axboe <axboe@kernel.dk> wrote:
>
> > On 12/18/18 10:25 AM, Jaegeuk Kim wrote:
> > > This patch makes dm be aware of io_pages to assign sane req_size for reads.
> >
> > Reviewed-by: Jens Axboe <axboe@kernel.dk>
> >
>
> I've applied this, see:
> https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-4.21&id=c6d6e9b0f6b4201c77f2cea3964dd122697e3543
Got it. Thank you so much.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] dm: give req_size precisely given by user
2018-12-18 17:25 [PATCH] dm: give req_size precisely given by user Jaegeuk Kim
@ 2018-12-18 23:47 ` Sasha Levin
2018-12-18 23:47 ` Sasha Levin
1 sibling, 0 replies; 6+ messages in thread
From: Sasha Levin @ 2018-12-18 23:47 UTC (permalink / raw)
To: Sasha Levin, Jaegeuk Kim, linux-kernel
Cc: Jaegeuk Kim, stable, ,
stable, Jens Axboe, Alasdair Kergon, Mike Snitzer, dm-devel,
stable
Hi,
[This is an automated email]
This commit has been processed because it contains a "Fixes:" tag,
fixing commit: 9491ae4aade6 mm: don't cap request size based on read-ahead setting.
The bot has tested the following trees: v4.19.10, v4.14.89,
v4.19.10: Failed to apply! Possible dependencies:
5f832a395859 ("scsi: sd_zbc: Fix sd_zbc_check_zones() error checks")
a2d6b3a2d390 ("block: Improve zone reset execution")
a91e138022bc ("block: Introduce blkdev_nr_zones() helper")
bf5054569653 ("block: Introduce blk_revalidate_disk_zones()")
d2e428e49eec ("scsi: sd_zbc: Reduce boot device scan and revalidate time")
e76239a3748c ("block: add a report_zones method")
v4.14.89: Failed to apply! Possible dependencies:
08e18eab0c57 ("block: add bi_blkg to the bio for cgroups")
30e5e929c7bf ("nvme: don't pass struct nvme_ns to nvme_config_discard")
5238dcf4136f ("block: replace bio->bi_issue_stat with bio-specific type")
53cfdc10a95d ("blk-throttle: fix null pointer dereference while throttling writeback IOs")
5d47c89f29ea ("dm: clear all discard attributes in queue_limits when discards are disabled")
8b904b5b6b58 ("block: Use blk_queue_flag_*() in drivers instead of queue_flag_*()")
a2d6b3a2d390 ("block: Improve zone reset execution")
b889bf66d001 ("blk-throttle: track read and write request individually")
bf5054569653 ("block: Introduce blk_revalidate_disk_zones()")
c8b5fd031a30 ("mmc: block: Factor out mmc_setup_queue()")
d70675121546 ("block: introduce blk-iolatency io controller")
e447a0151f7c ("zram: set BDI_CAP_STABLE_WRITES once")
ed754e5deeb1 ("nvme: track shared namespaces")
How should we proceed with this patch?
--
Thanks,
Sasha
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] dm: give req_size precisely given by user
@ 2018-12-18 23:47 ` Sasha Levin
0 siblings, 0 replies; 6+ messages in thread
From: Sasha Levin @ 2018-12-18 23:47 UTC (permalink / raw)
To: Sasha Levin, linux-kernel
Cc: Jens Axboe, Mike Snitzer, stable, dm-devel, Jaegeuk Kim, Alasdair Kergon
Hi,
[This is an automated email]
This commit has been processed because it contains a "Fixes:" tag,
fixing commit: 9491ae4aade6 mm: don't cap request size based on read-ahead setting.
The bot has tested the following trees: v4.19.10, v4.14.89,
v4.19.10: Failed to apply! Possible dependencies:
5f832a395859 ("scsi: sd_zbc: Fix sd_zbc_check_zones() error checks")
a2d6b3a2d390 ("block: Improve zone reset execution")
a91e138022bc ("block: Introduce blkdev_nr_zones() helper")
bf5054569653 ("block: Introduce blk_revalidate_disk_zones()")
d2e428e49eec ("scsi: sd_zbc: Reduce boot device scan and revalidate time")
e76239a3748c ("block: add a report_zones method")
v4.14.89: Failed to apply! Possible dependencies:
08e18eab0c57 ("block: add bi_blkg to the bio for cgroups")
30e5e929c7bf ("nvme: don't pass struct nvme_ns to nvme_config_discard")
5238dcf4136f ("block: replace bio->bi_issue_stat with bio-specific type")
53cfdc10a95d ("blk-throttle: fix null pointer dereference while throttling writeback IOs")
5d47c89f29ea ("dm: clear all discard attributes in queue_limits when discards are disabled")
8b904b5b6b58 ("block: Use blk_queue_flag_*() in drivers instead of queue_flag_*()")
a2d6b3a2d390 ("block: Improve zone reset execution")
b889bf66d001 ("blk-throttle: track read and write request individually")
bf5054569653 ("block: Introduce blk_revalidate_disk_zones()")
c8b5fd031a30 ("mmc: block: Factor out mmc_setup_queue()")
d70675121546 ("block: introduce blk-iolatency io controller")
e447a0151f7c ("zram: set BDI_CAP_STABLE_WRITES once")
ed754e5deeb1 ("nvme: track shared namespaces")
How should we proceed with this patch?
--
Thanks,
Sasha
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2018-12-18 23:47 UTC | newest]
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2018-12-18 17:25 [PATCH] dm: give req_size precisely given by user Jaegeuk Kim
2018-12-18 17:45 ` Jens Axboe
2018-12-18 19:47 ` Mike Snitzer
2018-12-18 21:40 ` Jaegeuk Kim
2018-12-18 23:47 ` [PATCH] " Sasha Levin
2018-12-18 23:47 ` Sasha Levin
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