On Fri, Mar 24 2023 at 7:11P -0400,
Jens Axboe wrote:
> On 3/24/23 4:53?PM, Mike Snitzer wrote:
> > On Fri, Mar 24 2023 at 3:34P -0400,
> > Jens Axboe wrote:
> >
> >> Just some random drive-by comments.
> >>
> >>> diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
> >>> index 1de1bdcd
Ping...
在 2023/3/1 11:29, yangerkun 写道:
From: yangerkun
Once there is a heavy IO load, so many encrypt/decrypt work will occupy
all of the cpu, which may lead the poor performance for other service.
So the idea like 'a2b8b2d97567 ("dm crypt: export sysfs of kcryptd
workqueue")' said seems nece
On 3/24/23 4:53?PM, Mike Snitzer wrote:
> On Fri, Mar 24 2023 at 3:34P -0400,
> Jens Axboe wrote:
>
>> Just some random drive-by comments.
>>
>>> diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
>>> index 1de1bdcda1ce..a58f8ac3ba75 100644
>>> --- a/drivers/md/dm-bufio.c
>>> +++ b/drive
On Fri, Mar 24 2023 at 3:34P -0400,
Jens Axboe wrote:
> Just some random drive-by comments.
>
> > diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
> > index 1de1bdcda1ce..a58f8ac3ba75 100644
> > --- a/drivers/md/dm-bufio.c
> > +++ b/drivers/md/dm-bufio.c
> > +static void lru_destroy(s
The pull request you sent on Fri, 24 Mar 2023 13:21:42 -0400:
> git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git
> tags/for-6.3/dm-fixes
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/5ad4fe9613cb8c202150f5cce5347fc8926c6c01
Thank you!
--
De
On 3/24/23 11:17, Mike Christie wrote:
Rename sd_pr_command to sd_pr_out_command to match a
sd_pr_in_command helper added in the next patches.
Reviewed-by: Bart Van Assche
--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel
On 3/24/23 11:17, Mike Christie wrote:
BLK_STS_NEXUS is used for NVMe/SCSI reservation conflicts and DASD's
locking feature which works similar to NVMe/SCSI reservations where a
host can get a lock on a device and when the lock is taken it will get
failures.
This patch renames BLK_STS_NEXUS so i
On 3/24/23 11:17, Mike Christie wrote:
Add callouts for reading keys and reservations. This allows LIO to support
the READ_KEYS and READ_RESERVATION commands and will allow dm-multipath
to optimize it's error handling so it can check if it's getting an error
because there's an existing reservatio
Just some random drive-by comments.
> diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
> index 1de1bdcda1ce..a58f8ac3ba75 100644
> --- a/drivers/md/dm-bufio.c
> +++ b/drivers/md/dm-bufio.c
> +static void lru_destroy(struct lru *lru)
> +{
> + BUG_ON(lru->cursor);
> + BUG_ON(!list_
On 3/24/23 11:17, Mike Christie wrote:
diff --git a/include/scsi/scsi_block_pr.h b/include/scsi/scsi_block_pr.h
new file mode 100644
index ..44766d7a81d8
--- /dev/null
+++ b/include/scsi/scsi_block_pr.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SCSI_BLOCK_PR_H
The block core (bio_split_discard) will already split discards based
on the 'discard_granularity' and 'max_discard_sectors' queue_limits.
But the DM thin target also needs to ensure that it doesn't receive a
discard that spans a 'max_discard_sectors' boundary.
Introduce a dm_target 'max_discard_gr
From: Joe Thornber
Split the bio prison into multiple regions, with a separate rbtree and
associated lock for each region.
To get fast bio prison locking and not damage the performance of
discards too much the bio-prison now stipulates that discards should
not cross a BIO_PRISON_MAX_RANGE bounda
Hi,
This patchset has been staged in linux-next for the 6.4 merge
window. The relevant linux-dm.git branch is here:
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/log/?h=dm-6.4
The initial patchset I posted earlier in the week for this line of
work didn't properly spli
Movement also consolidates holes in dm_bufio_client struct. But the
overall size of the struct isn't changed.
Signed-off-by: Mike Snitzer
---
drivers/md/dm-bufio.c | 24 +---
1 file changed, 13 insertions(+), 11 deletions(-)
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm
From: Mikulas Patocka
Save one spinlock by using waitqueue_active. We hold the bufio lock at
this place, so no one can add entries to the waitqueue at this point.
Signed-off-by: Mikulas Patocka
Signed-off-by: Mike Snitzer
---
drivers/md/dm-bufio.c | 7 ++-
1 file changed, 6 insertions(+),
From: Joe Thornber
When multiple threads perform IO to a thin device, the underlying
dm_bufio object can become a bottleneck; slowing down access to btree
nodes that store the thin metadata. Prior to this commit, each bufio
instance had a single mutex that was taken for every bufio operation.
Th
From: Joe Thornber
Reduce the time that a spinlock is held in cell_defer_no_holder().
Signed-off-by: Joe Thornber
Signed-off-by: Mike Snitzer
---
drivers/md/dm-thin.c | 14 --
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
From: Mikulas Patocka
The kernel supports multi page bio vector entries, so we can use them
in dm-bufio as an optimization.
Signed-off-by: Mikulas Patocka
Signed-off-by: Mike Snitzer
---
drivers/md/dm-bufio.c | 24
1 file changed, 4 insertions(+), 20 deletions(-)
dif
From: Joe Thornber
Was used by multi-snapshot DM target that never went upstream.
Signed-off-by: Joe Thornber
Acked-by: Mikulas Patocka
Signed-off-by: Mike Snitzer
---
drivers/md/dm-bufio.c| 77
include/linux/dm-bufio.h | 6
2 files changed,
Movement prepares for finer grained dm_buffer changes, in the next
commit, to be more easily seen.
Signed-off-by: Mike Snitzer
---
drivers/md/dm-bufio.c | 97 ++-
1 file changed, 50 insertions(+), 47 deletions(-)
diff --git a/drivers/md/dm-bufio.c b/drive
Hi Linus,
The following changes since commit d695e44157c8da8d298295d1905428fb2495bc8b:
dm: remove unnecessary (void*) conversion in event_callback() (2023-02-20
11:52:49 -0500)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git
On Thu, Mar 23, 2023 at 08:23:24PM +, Martin Wilck wrote:
> On Mon, 2023-03-20 at 12:22 -0700, Brian Bunker wrote:
> > Unsupported designators, even if they are correct, will result
> > in parsing errors. Add support for these two:
> >
> > Logical Unit Group (0x6)
> > Vendor Specific (0x0)
> >
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