4.19-stable patches

added patches:
	dm-crypt-make-workqueue-names-device-specific.patch
	revert-dm-crypt-use-wq_highpri-for-the-io-and-crypt-workqueues.patch

diff --git a/queue-4.19/dm-crypt-make-workqueue-names-device-specific.patch b/queue-4.19/dm-crypt-make-workqueue-names-device-specific.patch
new file mode 100644 (file)
index 0000000..50a459a
--- /dev/null
+++ b/queue-4.19/dm-crypt-make-workqueue-names-device-specific.patch
@@ -0,0 +1,83 @@
+From ed0302e83098db9b3a8c27f36c93deeafd6963d8 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= <mirq-linux@rere.qmqm.pl>
+Date: Tue, 9 Oct 2018 22:13:43 +0200
+Subject: dm crypt: make workqueue names device-specific
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Michał Mirosław <mirq-linux@rere.qmqm.pl>
+
+commit ed0302e83098db9b3a8c27f36c93deeafd6963d8 upstream.
+
+Make cpu-usage debugging easier by naming workqueues per device.
+
+Example ps output:
+
+root       413  0.0  0.0      0     0 ?        I<   paź02   0:00  [kcryptd_io/253:0]
+root       414  0.0  0.0      0     0 ?        I<   paź02   0:00  [kcryptd/253:0]
+root       415  0.0  0.0      0     0 ?        S    paź02   1:10  [dmcrypt_write/253:0]
+root       465  0.0  0.0      0     0 ?        I<   paź02   0:00  [kcryptd_io/253:2]
+root       466  0.0  0.0      0     0 ?        I<   paź02   0:00  [kcryptd/253:2]
+root       467  0.0  0.0      0     0 ?        S    paź02   2:06  [dmcrypt_write/253:2]
+root     15359  0.2  0.0      0     0 ?        I<   19:43   0:25  [kworker/u17:8-kcryptd/253:0]
+root     16563  0.2  0.0      0     0 ?        I<   20:10   0:18  [kworker/u17:0-kcryptd/253:2]
+root     23205  0.1  0.0      0     0 ?        I<   21:21   0:04  [kworker/u17:4-kcryptd/253:0]
+root     13383  0.1  0.0      0     0 ?        I<   21:32   0:02  [kworker/u17:2-kcryptd/253:2]
+root      2610  0.1  0.0      0     0 ?        I<   21:42   0:01  [kworker/u17:12-kcryptd/253:2]
+root     20124  0.1  0.0      0     0 ?        I<   21:56   0:01  [kworker/u17:1-kcryptd/253:2]
+
+Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
+Signed-off-by: Mike Snitzer <snitzer@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/md/dm-crypt.c |   15 ++++++++++-----
+ 1 file changed, 10 insertions(+), 5 deletions(-)
+
+--- a/drivers/md/dm-crypt.c
++++ b/drivers/md/dm-crypt.c
+@@ -2671,6 +2671,7 @@ static int crypt_ctr_optional(struct dm_
+ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+ {
+       struct crypt_config *cc;
++      const char *devname = dm_table_device_name(ti->table);
+       int key_size;
+       unsigned int align_mask;
+       unsigned long long tmpll;
+@@ -2816,18 +2817,22 @@ static int crypt_ctr(struct dm_target *t
+       }
+ 
+       ret = -ENOMEM;
+-      cc->io_queue = alloc_workqueue("kcryptd_io", WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM, 1);
++      cc->io_queue = alloc_workqueue("kcryptd_io/%s",
++                                     WQ_HIGHPRI | WQ_CPU_INTENSIVE | 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", WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM, 1);
++              cc->crypt_queue = alloc_workqueue("kcryptd/%s",
++                                                WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM,
++                                                1, devname);
+       else
+-              cc->crypt_queue = alloc_workqueue("kcryptd",
++              cc->crypt_queue = alloc_workqueue("kcryptd/%s",
+                                                 WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM | WQ_UNBOUND,
+-                                                num_online_cpus());
++                                                num_online_cpus(), devname);
+       if (!cc->crypt_queue) {
+               ti->error = "Couldn't create kcryptd queue";
+               goto bad;
+@@ -2836,7 +2841,7 @@ static int crypt_ctr(struct dm_target *t
+       spin_lock_init(&cc->write_thread_lock);
+       cc->write_tree = RB_ROOT;
+ 
+-      cc->write_thread = kthread_create(dmcrypt_write, cc, "dmcrypt_write");
++      cc->write_thread = kthread_create(dmcrypt_write, cc, "dmcrypt_write/%s", devname);
+       if (IS_ERR(cc->write_thread)) {
+               ret = PTR_ERR(cc->write_thread);
+               cc->write_thread = NULL;

diff --git a/queue-4.19/revert-dm-crypt-use-wq_highpri-for-the-io-and-crypt-workqueues.patch b/queue-4.19/revert-dm-crypt-use-wq_highpri-for-the-io-and-crypt-workqueues.patch
new file mode 100644 (file)
index 0000000..e2a11b8
--- /dev/null
+++ b/queue-4.19/revert-dm-crypt-use-wq_highpri-for-the-io-and-crypt-workqueues.patch
@@ -0,0 +1,52 @@
+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: Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt workqueues"
+
+From: Mike Snitzer <snitzer@redhat.com>
+
+commit f612b2132db529feac4f965f28a1b9258ea7c22b upstream.
+
+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>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/md/dm-crypt.c |    9 +++------
+ 1 file changed, 3 insertions(+), 6 deletions(-)
+
+--- a/drivers/md/dm-crypt.c
++++ b/drivers/md/dm-crypt.c
+@@ -2817,21 +2817,18 @@ static int crypt_ctr(struct dm_target *t
+       }
+ 
+       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";

diff --git a/queue-4.19/series b/queue-4.19/series
index 1d2918b64bdcfc231bd7fa48935951883e411a23..68cc7093938cd15da2ba9428782e3a05ee93d09c 100644 (file)
--- a/queue-4.19/series
+++ b/queue-4.19/series
@@ -261,3 +261,5 @@ md-raid10-prevent-access-of-uninitialized-resync_pages-offset.patch
 mm-memory_hotplug-don-t-access-uninitialized-memmaps-in-shrink_zone_span.patch
 net-phy-dp83867-fix-speed-10-in-sgmii-mode.patch
 net-phy-dp83867-increase-sgmii-autoneg-timer-duration.patch
+dm-crypt-make-workqueue-names-device-specific.patch
+revert-dm-crypt-use-wq_highpri-for-the-io-and-crypt-workqueues.patch