linux.git/include/linux/blk_types.h, branch v6.6.131

block: fix comment for op_is_zone_mgmt() to include RESET_ALL

2026-01-11T14:21:38+00:00

[ Upstream commit 8a32282175c964eb15638e8dfe199fc13c060f67 ]

REQ_OP_ZONE_RESET_ALL is a zone management request, and op_is_zone_mgmt()
has returned true for it.

Update the comment to remove the misleading exception note so
the documentation matches the implementation.

Fixes: 12a1c9353c47 ("block: fix op_is_zone_mgmt() to handle REQ_OP_ZONE_RESET_ALL")
Signed-off-by: shechenglong 
Reviewed-by: Damien Le Moal 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Jens Axboe 
Signed-off-by: Sasha Levin

block: make REQ_OP_ZONE_OPEN a write operation

2025-11-24T09:29:15+00:00

commit 19de03b312d69a7e9bacb51c806c6e3f4207376c upstream.

A REQ_OP_OPEN_ZONE request changes the condition of a sequential zone of
a zoned block device to the explicitly open condition
(BLK_ZONE_COND_EXP_OPEN). As such, it should be considered a write
operation.

Change this operation code to be an odd number to reflect this. The
following operation numbers are changed to keep the numbering compact.

No problems were reported without this change as this operation has no
data. However, this unifies the zone operation to reflect that they
modify the device state and also allows strengthening checks in the
block layer, e.g. checking if this operation is not issued against a
read-only device.

Fixes: 6c1b1da58f8c ("block: add zone open, close and finish operations")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal 
Reviewed-by: Chaitanya Kulkarni 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

block: fix op_is_zone_mgmt() to handle REQ_OP_ZONE_RESET_ALL

2025-11-24T09:29:15+00:00

commit 12a1c9353c47c0fb3464eba2d78cdf649dee1cf7 upstream.

REQ_OP_ZONE_RESET_ALL is a zone management request. Fix
op_is_zone_mgmt() to return true for that operation, like it already
does for REQ_OP_ZONE_RESET.

While no problems were reported without this fix, this change allows
strengthening checks in various block device drivers (scsi sd,
virtioblk, DM) where op_is_zone_mgmt() is used to verify that a zone
management command is not being issued to a regular block device.

Fixes: 6c1b1da58f8c ("block: add zone open, close and finish operations")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal 
Reviewed-by: Chaitanya Kulkarni 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

block: Make REQ_OP_ZONE_FINISH a write operation

2025-08-28T14:28:40+00:00

[ Upstream commit 3f66ccbaaef3a0c5bd844eab04e3207b4061c546 ]

REQ_OP_ZONE_FINISH is defined as "12", which makes
op_is_write(REQ_OP_ZONE_FINISH) return false, despite the fact that a
zone finish operation is an operation that modifies a zone (transition
it to full) and so should be considered as a write operation (albeit
one that does not transfer any data to the device).

Fix this by redefining REQ_OP_ZONE_FINISH to be an odd number (13), and
redefine REQ_OP_ZONE_RESET and REQ_OP_ZONE_RESET_ALL using sequential
odd numbers from that new value.

Fixes: 6c1b1da58f8c ("block: add zone open, close and finish operations")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal 
Reviewed-by: Bart Van Assche 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20250625093327.548866-2-dlemoal@kernel.org
Signed-off-by: Jens Axboe 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

block: reject invalid operation in submit_bio_noacct

2025-08-28T14:28:40+00:00

[ Upstream commit 1c042f8d4bc342b7985b1de3d76836f1a1083b65 ]

submit_bio_noacct allows completely invalid operations, or operations
that are not supported in the bio path.  Extent the existing switch
statement to rejcect all invalid types.

Move the code point for REQ_OP_ZONE_APPEND so that it's not right in the
middle of the zone management operations and the switch statement can
follow the numerical order of the operations.

Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20231221070538.1112446-1-hch@lst.de
Signed-off-by: Jens Axboe 
Stable-dep-of: 3f66ccbaaef3 ("block: Make REQ_OP_ZONE_FINISH a write operation")
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

block: warn once for each partition in bio_check_ro()

2024-01-20T10:51:38+00:00

[ Upstream commit 67d995e069535c32829f5d368d919063492cec6e ]

Commit 1b0a151c10a6 ("blk-core: use pr_warn_ratelimited() in
bio_check_ro()") fix message storm by limit the rate, however, there
will still be lots of message in the long term. Fix it better by warn
once for each partition.

Signed-off-by: Yu Kuai 
Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20231128123027.971610-3-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe 
Signed-off-by: Sasha Levin

fs, block: remove bdev->bd_super

2023-08-09T06:21:22+00:00

bdev->bd_super is unused now, remove it.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Christian Brauner 
Message-Id: <20230807112625.652089-5-hch@lst.de>
Signed-off-by: Christian Brauner

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2023-06-30T18:57:07+00:00

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (ufs, pm80xx, libata-scsi, smartpqi,
  lpfc, qla2xxx).

  We have a couple of major core changes impacting other systems:

   - Command Duration Limits, which spills into block and ATA

   - block level Persistent Reservation Operations, which touches block,
     nvme, target and dm

  Both of these are added with merge commits containing a cover letter
  explaining what's going on"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (187 commits)
  scsi: core: Improve warning message in scsi_device_block()
  scsi: core: Replace scsi_target_block() with scsi_block_targets()
  scsi: core: Don't wait for quiesce in scsi_device_block()
  scsi: core: Don't wait for quiesce in scsi_stop_queue()
  scsi: core: Merge scsi_internal_device_block() and device_block()
  scsi: sg: Increase number of devices
  scsi: bsg: Increase number of devices
  scsi: qla2xxx: Remove unused nvme_ls_waitq wait queue
  scsi: ufs: ufs-pci: Add support for Intel Arrow Lake
  scsi: sd: sd_zbc: Use PAGE_SECTORS_SHIFT
  scsi: ufs: wb: Add explicit flush_threshold sysfs attribute
  scsi: ufs: ufs-qcom: Switch to the new ICE API
  scsi: ufs: dt-bindings: qcom: Add ICE phandle
  scsi: ufs: ufs-mediatek: Set UFSHCD_QUIRK_MCQ_BROKEN_RTC quirk
  scsi: ufs: ufs-mediatek: Set UFSHCD_QUIRK_MCQ_BROKEN_INTR quirk
  scsi: ufs: core: Add host quirk UFSHCD_QUIRK_MCQ_BROKEN_RTC
  scsi: ufs: core: Add host quirk UFSHCD_QUIRK_MCQ_BROKEN_INTR
  scsi: ufs: core: Remove dedicated hwq for dev command
  scsi: ufs: core: mcq: Fix the incorrect OCS value for the device command
  scsi: ufs: dt-bindings: samsung,exynos: Drop unneeded quotes
  ...

block: remove BIO_PAGE_REFFED

2023-06-16T16:08:09+00:00

Now that all block direct I/O helpers use page pinning, this flag is
unused.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Christian Brauner 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: David Howells 
Link: https://lore.kernel.org/r/20230614140341.521331-4-hch@lst.de
Signed-off-by: Jens Axboe

block: introduce holder ops

2023-06-05T16:53:04+00:00

Add a new blk_holder_ops structure, which is passed to blkdev_get_by_* and
installed in the block_device for exclusive claims.  It will be used to
allow the block layer to call back into the user of the block device for
thing like notification of a removed device or a device resize.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Acked-by: Dave Chinner 
Reviewed-by: Dave Chinner 
Link: https://lore.kernel.org/r/20230601094459.1350643-10-hch@lst.de
Signed-off-by: Jens Axboe