[git pull] device mapper fixes for 5.10-rc7

[git pull] device mapper fixes for 5.10-rc7

[Mike Snitzer]

Hi Linus,

The following changes since commit 09162bc32c880a791c6c0668ce0745cf7958f576:

  Linux 5.10-rc4 (2020-11-15 16:44:31 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-5.10/dm-fixes

for you to fetch changes up to bde3808bc8c2741ad3d804f84720409aee0c2972:

  dm: remove invalid sparse __acquires and __releases annotations (2020-12-04 15:25:18 -0500)

Please pull, thanks!
Mike

----------------------------------------------------------------
- Fix DM's bio splitting changes that were made during v5.9.
  Restores splitting in terms of varied per-target ti->max_io_len
  rather than use block core's single stacked 'chunk_sectors' limit.

- Like DM crypt, update DM integrity to not use crypto drivers that
  have CRYPTO_ALG_ALLOCATES_MEMORY set.

- Fix DM writecache target's argument parsing and status display.

- Remove needless BUG() from dm writecache's persistent_memory_claim()

- Remove old gcc workaround in DM cache target's block_div() for ARM
  link errors now that gcc >= 4.9 is required.

- Fix RCU locking in dm_blk_report_zones and dm_dax_zero_page_range.

- Remove old, and now frowned upon, BUG_ON(in_interrupt()) in
  dm_table_event().

- Remove invalid sparse annotations from dm_prepare_ioctl() and
  dm_unprepare_ioctl().

----------------------------------------------------------------
Mike Snitzer (4):
      dm writecache: remove BUG() and fail gracefully instead
      dm: fix IO splitting
      dm: fix double RCU unlock in dm_dax_zero_page_range() error path
      dm: remove invalid sparse __acquires and __releases annotations

Mikulas Patocka (3):
      dm integrity: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY
      dm writecache: advance the number of arguments when reporting max_age
      dm writecache: fix the maximum number of arguments

Nick Desaulniers (1):
      Revert "dm cache: fix arm link errors with inline"

Sergei Shtepa (1):
      dm: fix bug with RCU locking in dm_blk_report_zones

Thomas Gleixner (1):
      dm table: Remove BUG_ON(in_interrupt())

 block/blk-merge.c            |  2 +-
 drivers/md/dm-cache-target.c |  4 ----
 drivers/md/dm-integrity.c    |  4 ++--
 drivers/md/dm-table.c        | 11 -----------
 drivers/md/dm-writecache.c   |  6 ++++--
 drivers/md/dm.c              | 29 +++++++++++++++--------------
 include/linux/blkdev.h       | 11 ++++++-----
 7 files changed, 28 insertions(+), 39 deletions(-)

Re: [git pull] device mapper fixes for 5.10-rc7

[pr-tracker-bot]

The pull request you sent on Fri, 4 Dec 2020 16:05:21 -0500:

> git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-5.10/dm-fixes

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/b3298500b23f0b53a8d81e0d5ad98a29db71f4f0

Thank you!

-- 
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[PATCH] block: fix incorrect branching in blk_max_size_offset() [was: Re: [git pull] device mapper fixes for 5.10-rc7]

[Mike Snitzer]

On Fri, Dec 04 2020 at  4:35P -0500,
pr-tracker-bot@kernel.org <pr-tracker-bot@kernel.org> wrote:

> The pull request you sent on Fri, 4 Dec 2020 16:05:21 -0500:
> 
> > git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-5.10/dm-fixes
> 
> has been merged into torvalds/linux.git:
> https://git.kernel.org/torvalds/c/b3298500b23f0b53a8d81e0d5ad98a29db71f4f0
> 
> Thank you!

Hi Linus,

This is _really_ embarrassing; but I screwed up the branching at the top
of blk_max_size_offset(), here is the fix:

From: Mike Snitzer <snitzer@redhat.com>
Date: Fri, 4 Dec 2020 17:21:03 -0500
Subject: [PATCH] block: fix incorrect branching in blk_max_size_offset()

If non-zero 'chunk_sectors' is passed in to blk_max_size_offset() that
override will be incorrectly ignored.

Old blk_max_size_offset() branching, prior to commit 3ee16db390b4,
must be used only if passed 'chunk_sectors' override is zero.

Fixes: 3ee16db390b4 ("dm: fix IO splitting")
Cc: stable@vger.kernel.org # 5.9
Reported-by: John Dorminy <jdorminy@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 include/linux/blkdev.h | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 24ae504cf77d..033eb5f73b65 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1076,10 +1076,12 @@ static inline unsigned int blk_max_size_offset(struct request_queue *q,
 					       sector_t offset,
 					       unsigned int chunk_sectors)
 {
-	if (!chunk_sectors && q->limits.chunk_sectors)
-		chunk_sectors = q->limits.chunk_sectors;
-	else
-		return q->limits.max_sectors;
+	if (!chunk_sectors) {
+		if (q->limits.chunk_sectors)
+			chunk_sectors = q->limits.chunk_sectors;
+		else
+			return q->limits.max_sectors;
+	}
 
 	if (likely(is_power_of_2(chunk_sectors)))
 		chunk_sectors -= offset & (chunk_sectors - 1);
-- 
2.15.0

[git pull] device mapper induced block fix for 5.10-rc7

[Mike Snitzer]

Hi Linus (and Jens),

Apologies for the glaring bug I introduced with my previous pull request!

The following changes since commit bde3808bc8c2741ad3d804f84720409aee0c2972:

  dm: remove invalid sparse __acquires and __releases annotations (2020-12-04 15:25:18 -0500)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-5.10/dm-fixes-2

for you to fetch changes up to 65f33b35722952fa076811d5686bfd8a611a80fa:

  block: fix incorrect branching in blk_max_size_offset() (2020-12-04 17:27:42 -0500)

Please pull, thanks!
Mike

----------------------------------------------------------------
Fix incorrect branching at top of blk_max_size_offset().

----------------------------------------------------------------
Mike Snitzer (1):
      block: fix incorrect branching in blk_max_size_offset()

 include/linux/blkdev.h | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

Re: [dm-devel] [git pull] device mapper induced block fix for 5.10-rc7

[pr-tracker-bot]

The pull request you sent on Fri, 4 Dec 2020 18:12:26 -0500:

> git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-5.10/dm-fixes-2

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/8762340561397fce0f0b41220ed9619101c870d0

Thank you!

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Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/prtracker.html