+++ /dev/null
-From eb40c0acdc342b815d4d03ae6abb09e80c0f2988 Mon Sep 17 00:00:00 2001
-From: Ilya Dryomov <idryomov@gmail.com>
-Date: Tue, 26 Mar 2019 20:20:58 +0100
-Subject: dm table: propagate BDI_CAP_STABLE_WRITES to fix sporadic checksum errors
-
-From: Ilya Dryomov <idryomov@gmail.com>
-
-commit eb40c0acdc342b815d4d03ae6abb09e80c0f2988 upstream.
-
-Some devices don't use blk_integrity but still want stable pages
-because they do their own checksumming. Examples include rbd and iSCSI
-when data digests are negotiated. Stacking DM (and thus LVM) on top of
-these devices results in sporadic checksum errors.
-
-Set BDI_CAP_STABLE_WRITES if any underlying device has it set.
-
-Cc: stable@vger.kernel.org
-Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
-Signed-off-by: Mike Snitzer <snitzer@redhat.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/md/dm-table.c | 39 +++++++++++++++++++++++++++++++++++++++
- 1 file changed, 39 insertions(+)
-
---- a/drivers/md/dm-table.c
-+++ b/drivers/md/dm-table.c
-@@ -1435,6 +1435,36 @@ static bool dm_table_supports_discards(s
- return 0;
- }
-
-+static int device_requires_stable_pages(struct dm_target *ti,
-+ struct dm_dev *dev, sector_t start,
-+ sector_t len, void *data)
-+{
-+ struct request_queue *q = bdev_get_queue(dev->bdev);
-+
-+ return q && bdi_cap_stable_pages_required(q->backing_dev_info);
-+}
-+
-+/*
-+ * If any underlying device requires stable pages, a table must require
-+ * them as well. Only targets that support iterate_devices are considered:
-+ * don't want error, zero, etc to require stable pages.
-+ */
-+static bool dm_table_requires_stable_pages(struct dm_table *t)
-+{
-+ struct dm_target *ti;
-+ unsigned i;
-+
-+ for (i = 0; i < dm_table_get_num_targets(t); i++) {
-+ ti = dm_table_get_target(t, i);
-+
-+ if (ti->type->iterate_devices &&
-+ ti->type->iterate_devices(ti, device_requires_stable_pages, NULL))
-+ return true;
-+ }
-+
-+ return false;
-+}
-+
- void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
- struct queue_limits *limits)
- {
-@@ -1486,6 +1516,15 @@ void dm_table_set_restrictions(struct dm
- queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, q);
-
- /*
-+ * Some devices don't use blk_integrity but still want stable pages
-+ * because they do their own checksumming.
-+ */
-+ if (dm_table_requires_stable_pages(t))
-+ q->backing_dev_info->capabilities |= BDI_CAP_STABLE_WRITES;
-+ else
-+ q->backing_dev_info->capabilities &= ~BDI_CAP_STABLE_WRITES;
-+
-+ /*
- * QUEUE_FLAG_STACKABLE must be set after all queue settings are
- * visible to other CPUs because, once the flag is set, incoming bios
- * are processed by request-based dm, which refers to the queue
sched-fair-do-not-re-read-h_load_next-during-hierarchical-load-calculation.patch
xtensa-fix-return_address.patch
pci-add-function-1-dma-alias-quirk-for-marvell-9170-sata-controller.patch
-dm-table-propagate-bdi_cap_stable_writes-to-fix-sporadic-checksum-errors.patch
+++ /dev/null
-From eb40c0acdc342b815d4d03ae6abb09e80c0f2988 Mon Sep 17 00:00:00 2001
-From: Ilya Dryomov <idryomov@gmail.com>
-Date: Tue, 26 Mar 2019 20:20:58 +0100
-Subject: dm table: propagate BDI_CAP_STABLE_WRITES to fix sporadic checksum errors
-
-From: Ilya Dryomov <idryomov@gmail.com>
-
-commit eb40c0acdc342b815d4d03ae6abb09e80c0f2988 upstream.
-
-Some devices don't use blk_integrity but still want stable pages
-because they do their own checksumming. Examples include rbd and iSCSI
-when data digests are negotiated. Stacking DM (and thus LVM) on top of
-these devices results in sporadic checksum errors.
-
-Set BDI_CAP_STABLE_WRITES if any underlying device has it set.
-
-Cc: stable@vger.kernel.org
-Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
-Signed-off-by: Mike Snitzer <snitzer@redhat.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/md/dm-table.c | 39 +++++++++++++++++++++++++++++++++++++++
- 1 file changed, 39 insertions(+)
-
---- a/drivers/md/dm-table.c
-+++ b/drivers/md/dm-table.c
-@@ -1479,6 +1479,36 @@ static bool dm_table_supports_discards(s
- return false;
- }
-
-+static int device_requires_stable_pages(struct dm_target *ti,
-+ struct dm_dev *dev, sector_t start,
-+ sector_t len, void *data)
-+{
-+ struct request_queue *q = bdev_get_queue(dev->bdev);
-+
-+ return q && bdi_cap_stable_pages_required(q->backing_dev_info);
-+}
-+
-+/*
-+ * If any underlying device requires stable pages, a table must require
-+ * them as well. Only targets that support iterate_devices are considered:
-+ * don't want error, zero, etc to require stable pages.
-+ */
-+static bool dm_table_requires_stable_pages(struct dm_table *t)
-+{
-+ struct dm_target *ti;
-+ unsigned i;
-+
-+ for (i = 0; i < dm_table_get_num_targets(t); i++) {
-+ ti = dm_table_get_target(t, i);
-+
-+ if (ti->type->iterate_devices &&
-+ ti->type->iterate_devices(ti, device_requires_stable_pages, NULL))
-+ return true;
-+ }
-+
-+ return false;
-+}
-+
- void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
- struct queue_limits *limits)
- {
-@@ -1521,6 +1551,15 @@ void dm_table_set_restrictions(struct dm
- dm_table_verify_integrity(t);
-
- /*
-+ * Some devices don't use blk_integrity but still want stable pages
-+ * because they do their own checksumming.
-+ */
-+ if (dm_table_requires_stable_pages(t))
-+ q->backing_dev_info->capabilities |= BDI_CAP_STABLE_WRITES;
-+ else
-+ q->backing_dev_info->capabilities &= ~BDI_CAP_STABLE_WRITES;
-+
-+ /*
- * Determine whether or not this queue's I/O timings contribute
- * to the entropy pool, Only request-based targets use this.
- * Clear QUEUE_FLAG_ADD_RANDOM if any underlying device does not
sched-fair-do-not-re-read-h_load_next-during-hierarchical-load-calculation.patch
xtensa-fix-return_address.patch
pci-add-function-1-dma-alias-quirk-for-marvell-9170-sata-controller.patch
-dm-table-propagate-bdi_cap_stable_writes-to-fix-sporadic-checksum-errors.patch
+++ /dev/null
-From eb40c0acdc342b815d4d03ae6abb09e80c0f2988 Mon Sep 17 00:00:00 2001
-From: Ilya Dryomov <idryomov@gmail.com>
-Date: Tue, 26 Mar 2019 20:20:58 +0100
-Subject: dm table: propagate BDI_CAP_STABLE_WRITES to fix sporadic checksum errors
-
-From: Ilya Dryomov <idryomov@gmail.com>
-
-commit eb40c0acdc342b815d4d03ae6abb09e80c0f2988 upstream.
-
-Some devices don't use blk_integrity but still want stable pages
-because they do their own checksumming. Examples include rbd and iSCSI
-when data digests are negotiated. Stacking DM (and thus LVM) on top of
-these devices results in sporadic checksum errors.
-
-Set BDI_CAP_STABLE_WRITES if any underlying device has it set.
-
-Cc: stable@vger.kernel.org
-Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
-Signed-off-by: Mike Snitzer <snitzer@redhat.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/md/dm-table.c | 39 +++++++++++++++++++++++++++++++++++++++
- 1 file changed, 39 insertions(+)
-
---- a/drivers/md/dm-table.c
-+++ b/drivers/md/dm-table.c
-@@ -1575,6 +1575,36 @@ static bool dm_table_supports_discards(s
- return false;
- }
-
-+static int device_requires_stable_pages(struct dm_target *ti,
-+ struct dm_dev *dev, sector_t start,
-+ sector_t len, void *data)
-+{
-+ struct request_queue *q = bdev_get_queue(dev->bdev);
-+
-+ return q && bdi_cap_stable_pages_required(q->backing_dev_info);
-+}
-+
-+/*
-+ * If any underlying device requires stable pages, a table must require
-+ * them as well. Only targets that support iterate_devices are considered:
-+ * don't want error, zero, etc to require stable pages.
-+ */
-+static bool dm_table_requires_stable_pages(struct dm_table *t)
-+{
-+ struct dm_target *ti;
-+ unsigned i;
-+
-+ for (i = 0; i < dm_table_get_num_targets(t); i++) {
-+ ti = dm_table_get_target(t, i);
-+
-+ if (ti->type->iterate_devices &&
-+ ti->type->iterate_devices(ti, device_requires_stable_pages, NULL))
-+ return true;
-+ }
-+
-+ return false;
-+}
-+
- void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
- struct queue_limits *limits)
- {
-@@ -1617,6 +1647,15 @@ void dm_table_set_restrictions(struct dm
- dm_table_verify_integrity(t);
-
- /*
-+ * Some devices don't use blk_integrity but still want stable pages
-+ * because they do their own checksumming.
-+ */
-+ if (dm_table_requires_stable_pages(t))
-+ q->backing_dev_info->capabilities |= BDI_CAP_STABLE_WRITES;
-+ else
-+ q->backing_dev_info->capabilities &= ~BDI_CAP_STABLE_WRITES;
-+
-+ /*
- * Determine whether or not this queue's I/O timings contribute
- * to the entropy pool, Only request-based targets use this.
- * Clear QUEUE_FLAG_ADD_RANDOM if any underlying device does not
sched-fair-do-not-re-read-h_load_next-during-hierarchical-load-calculation.patch
xtensa-fix-return_address.patch
pci-add-function-1-dma-alias-quirk-for-marvell-9170-sata-controller.patch
-dm-table-propagate-bdi_cap_stable_writes-to-fix-sporadic-checksum-errors.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
