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* FAILED: patch "[PATCH] Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt" failed to apply to 4.14-stable tree
@ 2019-11-26 10:41 gregkh
  2019-11-26 17:07 ` Mike Snitzer
  0 siblings, 1 reply; 3+ messages in thread
From: gregkh @ 2019-11-26 10:41 UTC (permalink / raw)
  To: snitzer, vcaputo; +Cc: stable


The patch below does not apply to the 4.14-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From f612b2132db529feac4f965f28a1b9258ea7c22b Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Wed, 20 Nov 2019 17:27:39 -0500
Subject: [PATCH] Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt
 workqueues"

This reverts commit a1b89132dc4f61071bdeaab92ea958e0953380a1.

Revert required hand-patching due to subsequent changes that were
applied since commit a1b89132dc4f61071bdeaab92ea958e0953380a1.

Requires: ed0302e83098d ("dm crypt: make workqueue names device-specific")
Cc: stable@vger.kernel.org
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=199857
Reported-by: Vito Caputo <vcaputo@pengaru.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index f87f6495652f..eb9782fc93fe 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -2700,21 +2700,18 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	}
 
 	ret = -ENOMEM;
-	cc->io_queue = alloc_workqueue("kcryptd_io/%s",
-				       WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM,
-				       1, devname);
+	cc->io_queue = alloc_workqueue("kcryptd_io/%s", WQ_MEM_RECLAIM, 1, devname);
 	if (!cc->io_queue) {
 		ti->error = "Couldn't create kcryptd io queue";
 		goto bad;
 	}
 
 	if (test_bit(DM_CRYPT_SAME_CPU, &cc->flags))
-		cc->crypt_queue = alloc_workqueue("kcryptd/%s",
-						  WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM,
+		cc->crypt_queue = alloc_workqueue("kcryptd/%s", WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM,
 						  1, devname);
 	else
 		cc->crypt_queue = alloc_workqueue("kcryptd/%s",
-						  WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM | WQ_UNBOUND,
+						  WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM | WQ_UNBOUND,
 						  num_online_cpus(), devname);
 	if (!cc->crypt_queue) {
 		ti->error = "Couldn't create kcryptd queue";


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: FAILED: patch "[PATCH] Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt" failed to apply to 4.14-stable tree
  2019-11-26 10:41 FAILED: patch "[PATCH] Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt" failed to apply to 4.14-stable tree gregkh
@ 2019-11-26 17:07 ` Mike Snitzer
  2019-11-27  1:49   ` Sasha Levin
  0 siblings, 1 reply; 3+ messages in thread
From: Mike Snitzer @ 2019-11-26 17:07 UTC (permalink / raw)
  To: gregkh; +Cc: vcaputo, stable

On Tue, Nov 26 2019 at  5:41am -0500,
gregkh@linuxfoundation.org <gregkh@linuxfoundation.org> wrote:

> 
> The patch below does not apply to the 4.14-stable tree.
> If someone wants it applied there, or to any other stable or longterm
> tree, then please email the backport, including the original git commit
> id to <stable@vger.kernel.org>.
> 
> thanks,
> 
> greg k-h

Same as 4.19 goes for 4.14, this worked for me:

git cherry-pick ed0302e83098d
git cherry-pick f612b2132db529feac4f965f28a1b9258ea7c22b

Do your stable@ scripts actually look at Requires: tags?

Mike


> ------------------ original commit in Linus's tree ------------------
> 
> From f612b2132db529feac4f965f28a1b9258ea7c22b Mon Sep 17 00:00:00 2001
> From: Mike Snitzer <snitzer@redhat.com>
> Date: Wed, 20 Nov 2019 17:27:39 -0500
> Subject: [PATCH] Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt
>  workqueues"
> 
> This reverts commit a1b89132dc4f61071bdeaab92ea958e0953380a1.
> 
> Revert required hand-patching due to subsequent changes that were
> applied since commit a1b89132dc4f61071bdeaab92ea958e0953380a1.
> 
> Requires: ed0302e83098d ("dm crypt: make workqueue names device-specific")
> Cc: stable@vger.kernel.org
> Bug: https://bugzilla.kernel.org/show_bug.cgi?id=199857
> Reported-by: Vito Caputo <vcaputo@pengaru.com>
> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
> 
> diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
> index f87f6495652f..eb9782fc93fe 100644
> --- a/drivers/md/dm-crypt.c
> +++ b/drivers/md/dm-crypt.c
> @@ -2700,21 +2700,18 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  	}
>  
>  	ret = -ENOMEM;
> -	cc->io_queue = alloc_workqueue("kcryptd_io/%s",
> -				       WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM,
> -				       1, devname);
> +	cc->io_queue = alloc_workqueue("kcryptd_io/%s", WQ_MEM_RECLAIM, 1, devname);
>  	if (!cc->io_queue) {
>  		ti->error = "Couldn't create kcryptd io queue";
>  		goto bad;
>  	}
>  
>  	if (test_bit(DM_CRYPT_SAME_CPU, &cc->flags))
> -		cc->crypt_queue = alloc_workqueue("kcryptd/%s",
> -						  WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM,
> +		cc->crypt_queue = alloc_workqueue("kcryptd/%s", WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM,
>  						  1, devname);
>  	else
>  		cc->crypt_queue = alloc_workqueue("kcryptd/%s",
> -						  WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM | WQ_UNBOUND,
> +						  WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM | WQ_UNBOUND,
>  						  num_online_cpus(), devname);
>  	if (!cc->crypt_queue) {
>  		ti->error = "Couldn't create kcryptd queue";
> 


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: FAILED: patch "[PATCH] Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt" failed to apply to 4.14-stable tree
  2019-11-26 17:07 ` Mike Snitzer
@ 2019-11-27  1:49   ` Sasha Levin
  0 siblings, 0 replies; 3+ messages in thread
From: Sasha Levin @ 2019-11-27  1:49 UTC (permalink / raw)
  To: Mike Snitzer; +Cc: gregkh, vcaputo, stable

On Tue, Nov 26, 2019 at 12:07:55PM -0500, Mike Snitzer wrote:
>On Tue, Nov 26 2019 at  5:41am -0500,
>gregkh@linuxfoundation.org <gregkh@linuxfoundation.org> wrote:
>
>>
>> The patch below does not apply to the 4.14-stable tree.
>> If someone wants it applied there, or to any other stable or longterm
>> tree, then please email the backport, including the original git commit
>> id to <stable@vger.kernel.org>.
>>
>> thanks,
>>
>> greg k-h
>
>Same as 4.19 goes for 4.14, this worked for me:
>
>git cherry-pick ed0302e83098d
>git cherry-pick f612b2132db529feac4f965f28a1b9258ea7c22b

$ git cherry-pick ed0302e83098d
[queue-4.19 fa98ce88d51b9] dm crypt: make workqueue names device-specific
 Author: Michał Mirosław <mirq-linux@rere.qmqm.pl>
 Date: Tue Oct 9 22:13:43 2018 +0200
 1 file changed, 10 insertions(+), 5 deletions(-)
$ git cherry-pick f612b2132db529feac4f965f28a1b9258ea7c22b
[queue-4.19 73eb292b80f32] Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt workqueues"
 Author: Mike Snitzer <snitzer@redhat.com>
 Date: Wed Nov 20 17:27:39 2019 -0500
 1 file changed, 3 insertions(+), 6 deletions(-)
$ make allmodconfig
scripts/kconfig/conf  --allmodconfig Kconfig
#
# configuration written to .config
#
$ make drivers/md/dm-crypt.o
scripts/kconfig/conf  --syncconfig Kconfig
  CALL    scripts/checksyscalls.sh
  DESCEND  objtool
  CC [M]  drivers/md/dm-crypt.o
drivers/md/dm-crypt.c: In function ‘crypt_ctr’:
drivers/md/dm-crypt.c:2674:24: error: implicit declaration of function ‘dm_table_device_name’; did you mean ‘dm_device_name’? [-Werror=implicit-function-declaration]
  const char *devname = dm_table_device_name(ti->table);
                        ^~~~~~~~~~~~~~~~~~~~
                        dm_device_name
drivers/md/dm-crypt.c:2674:24: warning: initialization of ‘const char *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
cc1: some warnings being treated as errors
make[1]: *** [scripts/Makefile.build:310: drivers/md/dm-crypt.o] Error 1
make: *** [Makefile:1678: drivers/md/dm-crypt.o] Error 2

-- 
Thanks,
Sasha

^ permalink raw reply	[flat|nested] 3+ messages in thread

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2019-11-26 10:41 FAILED: patch "[PATCH] Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt" failed to apply to 4.14-stable tree gregkh
2019-11-26 17:07 ` Mike Snitzer
2019-11-27  1:49   ` Sasha Levin

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