mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 22:21:40 +00:00
9dd6956b38
-----BEGIN PGP SIGNATURE-----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=W1Zb
-----END PGP SIGNATURE-----
Merge tag 'for-6.4/block-2023-04-21' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- drbd patches, bringing us closer to unifying the out-of-tree version
and the in tree one (Andreas, Christoph)
- support for auto-quiesce for the s390 dasd driver (Stefan)
- MD pull request via Song:
- md/bitmap: Optimal last page size (Jon Derrick)
- Various raid10 fixes (Yu Kuai, Li Nan)
- md: add error_handlers for raid0 and linear (Mariusz Tkaczyk)
- NVMe pull request via Christoph:
- Drop redundant pci_enable_pcie_error_reporting (Bjorn Helgaas)
- Validate nvmet module parameters (Chaitanya Kulkarni)
- Fence TCP socket on receive error (Chris Leech)
- Fix async event trace event (Keith Busch)
- Minor cleanups (Chaitanya Kulkarni, zhenwei pi)
- Fix and cleanup nvmet Identify handling (Damien Le Moal,
Christoph Hellwig)
- Fix double blk_mq_complete_request race in the timeout handler
(Lei Yin)
- Fix irq locking in nvme-fcloop (Ming Lei)
- Remove queue mapping helper for rdma devices (Sagi Grimberg)
- use structured request attribute checks for nbd (Jakub)
- fix blk-crypto race conditions between keyslot management (Eric)
- add sed-opal support for reading read locking range attributes
(Ondrej)
- make fault injection configurable for null_blk (Akinobu)
- clean up the request insertion API (Christoph)
- clean up the queue running API (Christoph)
- blkg config helper cleanups (Tejun)
- lazy init support for blk-iolatency (Tejun)
- various fixes and tweaks to ublk (Ming)
- remove hybrid polling. It hasn't really been useful since we got
async polled IO support, and these days we don't support sync polled
IO at all (Keith)
- misc fixes, cleanups, improvements (Zhong, Ondrej, Colin, Chengming,
Chaitanya, me)
* tag 'for-6.4/block-2023-04-21' of git://git.kernel.dk/linux: (118 commits)
nbd: fix incomplete validation of ioctl arg
ublk: don't return 0 in case of any failure
sed-opal: geometry feature reporting command
null_blk: Always check queue mode setting from configfs
block: ublk: switch to ioctl command encoding
blk-mq: fix the blk_mq_add_to_requeue_list call in blk_kick_flush
block, bfq: Fix division by zero error on zero wsum
fault-inject: fix build error when FAULT_INJECTION_CONFIGFS=y and CONFIGFS_FS=m
block: store bdev->bd_disk->fops->submit_bio state in bdev
block: re-arrange the struct block_device fields for better layout
md/raid5: remove unused working_disks variable
md/raid10: don't call bio_start_io_acct twice for bio which experienced read error
md/raid10: fix memleak of md thread
md/raid10: fix memleak for 'conf->bio_split'
md/raid10: fix leak of 'r10bio->remaining' for recovery
md/raid10: don't BUG_ON() in raise_barrier()
md: fix soft lockup in status_resync
md: add error_handlers for raid0 and linear
md: Use optimal I/O size for last bitmap page
md: Fix types in sb writer
...
231 lines
6.8 KiB
Plaintext
231 lines
6.8 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
|
|
#
|
|
# Block layer core configuration
|
|
#
|
|
menuconfig BLOCK
|
|
bool "Enable the block layer" if EXPERT
|
|
default y
|
|
select SBITMAP
|
|
help
|
|
Provide block layer support for the kernel.
|
|
|
|
Disable this option to remove the block layer support from the
|
|
kernel. This may be useful for embedded devices.
|
|
|
|
If this option is disabled:
|
|
|
|
- block device files will become unusable
|
|
- some filesystems (such as ext3) will become unavailable.
|
|
|
|
Also, SCSI character devices and USB storage will be disabled since
|
|
they make use of various block layer definitions and facilities.
|
|
|
|
Say Y here unless you know you really don't want to mount disks and
|
|
suchlike.
|
|
|
|
if BLOCK
|
|
|
|
config BLOCK_LEGACY_AUTOLOAD
|
|
bool "Legacy autoloading support"
|
|
default y
|
|
help
|
|
Enable loading modules and creating block device instances based on
|
|
accesses through their device special file. This is a historic Linux
|
|
feature and makes no sense in a udev world where device files are
|
|
created on demand, but scripts that manually create device nodes and
|
|
then call losetup might rely on this behavior.
|
|
|
|
config BLK_RQ_ALLOC_TIME
|
|
bool
|
|
|
|
config BLK_CGROUP_RWSTAT
|
|
bool
|
|
|
|
config BLK_CGROUP_PUNT_BIO
|
|
bool
|
|
|
|
config BLK_DEV_BSG_COMMON
|
|
tristate
|
|
|
|
config BLK_ICQ
|
|
bool
|
|
|
|
config BLK_DEV_BSGLIB
|
|
bool "Block layer SG support v4 helper lib"
|
|
select BLK_DEV_BSG_COMMON
|
|
help
|
|
Subsystems will normally enable this if needed. Users will not
|
|
normally need to manually enable this.
|
|
|
|
If unsure, say N.
|
|
|
|
config BLK_DEV_INTEGRITY
|
|
bool "Block layer data integrity support"
|
|
help
|
|
Some storage devices allow extra information to be
|
|
stored/retrieved to help protect the data. The block layer
|
|
data integrity option provides hooks which can be used by
|
|
filesystems to ensure better data integrity.
|
|
|
|
Say yes here if you have a storage device that provides the
|
|
T10/SCSI Data Integrity Field or the T13/ATA External Path
|
|
Protection. If in doubt, say N.
|
|
|
|
config BLK_DEV_INTEGRITY_T10
|
|
tristate
|
|
depends on BLK_DEV_INTEGRITY
|
|
select CRC_T10DIF
|
|
select CRC64_ROCKSOFT
|
|
|
|
config BLK_DEV_ZONED
|
|
bool "Zoned block device support"
|
|
select MQ_IOSCHED_DEADLINE
|
|
help
|
|
Block layer zoned block device support. This option enables
|
|
support for ZAC/ZBC/ZNS host-managed and host-aware zoned block
|
|
devices.
|
|
|
|
Say yes here if you have a ZAC, ZBC, or ZNS storage device.
|
|
|
|
config BLK_DEV_THROTTLING
|
|
bool "Block layer bio throttling support"
|
|
depends on BLK_CGROUP
|
|
select BLK_CGROUP_RWSTAT
|
|
help
|
|
Block layer bio throttling support. It can be used to limit
|
|
the IO rate to a device. IO rate policies are per cgroup and
|
|
one needs to mount and use blkio cgroup controller for creating
|
|
cgroups and specifying per device IO rate policies.
|
|
|
|
See Documentation/admin-guide/cgroup-v1/blkio-controller.rst for more information.
|
|
|
|
config BLK_DEV_THROTTLING_LOW
|
|
bool "Block throttling .low limit interface support (EXPERIMENTAL)"
|
|
depends on BLK_DEV_THROTTLING
|
|
help
|
|
Add .low limit interface for block throttling. The low limit is a best
|
|
effort limit to prioritize cgroups. Depending on the setting, the limit
|
|
can be used to protect cgroups in terms of bandwidth/iops and better
|
|
utilize disk resource.
|
|
|
|
Note, this is an experimental interface and could be changed someday.
|
|
|
|
config BLK_WBT
|
|
bool "Enable support for block device writeback throttling"
|
|
help
|
|
Enabling this option enables the block layer to throttle buffered
|
|
background writeback from the VM, making it more smooth and having
|
|
less impact on foreground operations. The throttling is done
|
|
dynamically on an algorithm loosely based on CoDel, factoring in
|
|
the realtime performance of the disk.
|
|
|
|
config BLK_WBT_MQ
|
|
bool "Enable writeback throttling by default"
|
|
default y
|
|
depends on BLK_WBT
|
|
help
|
|
Enable writeback throttling by default for request-based block devices.
|
|
|
|
config BLK_CGROUP_IOLATENCY
|
|
bool "Enable support for latency based cgroup IO protection"
|
|
depends on BLK_CGROUP
|
|
help
|
|
Enabling this option enables the .latency interface for IO throttling.
|
|
The IO controller will attempt to maintain average IO latencies below
|
|
the configured latency target, throttling anybody with a higher latency
|
|
target than the victimized group.
|
|
|
|
Note, this is an experimental interface and could be changed someday.
|
|
|
|
config BLK_CGROUP_FC_APPID
|
|
bool "Enable support to track FC I/O Traffic across cgroup applications"
|
|
depends on BLK_CGROUP && NVME_FC
|
|
help
|
|
Enabling this option enables the support to track FC I/O traffic across
|
|
cgroup applications. It enables the Fabric and the storage targets to
|
|
identify, monitor, and handle FC traffic based on VM tags by inserting
|
|
application specific identification into the FC frame.
|
|
|
|
config BLK_CGROUP_IOCOST
|
|
bool "Enable support for cost model based cgroup IO controller"
|
|
depends on BLK_CGROUP
|
|
select BLK_RQ_ALLOC_TIME
|
|
help
|
|
Enabling this option enables the .weight interface for cost
|
|
model based proportional IO control. The IO controller
|
|
distributes IO capacity between different groups based on
|
|
their share of the overall weight distribution.
|
|
|
|
config BLK_CGROUP_IOPRIO
|
|
bool "Cgroup I/O controller for assigning an I/O priority class"
|
|
depends on BLK_CGROUP
|
|
help
|
|
Enable the .prio interface for assigning an I/O priority class to
|
|
requests. The I/O priority class affects the order in which an I/O
|
|
scheduler and block devices process requests. Only some I/O schedulers
|
|
and some block devices support I/O priorities.
|
|
|
|
config BLK_DEBUG_FS
|
|
bool "Block layer debugging information in debugfs"
|
|
default y
|
|
depends on DEBUG_FS
|
|
help
|
|
Include block layer debugging information in debugfs. This information
|
|
is mostly useful for kernel developers, but it doesn't incur any cost
|
|
at runtime.
|
|
|
|
Unless you are building a kernel for a tiny system, you should
|
|
say Y here.
|
|
|
|
config BLK_DEBUG_FS_ZONED
|
|
bool
|
|
default BLK_DEBUG_FS && BLK_DEV_ZONED
|
|
|
|
config BLK_SED_OPAL
|
|
bool "Logic for interfacing with Opal enabled SEDs"
|
|
help
|
|
Builds Logic for interfacing with Opal enabled controllers.
|
|
Enabling this option enables users to setup/unlock/lock
|
|
Locking ranges for SED devices using the Opal protocol.
|
|
|
|
config BLK_INLINE_ENCRYPTION
|
|
bool "Enable inline encryption support in block layer"
|
|
help
|
|
Build the blk-crypto subsystem. Enabling this lets the
|
|
block layer handle encryption, so users can take
|
|
advantage of inline encryption hardware if present.
|
|
|
|
config BLK_INLINE_ENCRYPTION_FALLBACK
|
|
bool "Enable crypto API fallback for blk-crypto"
|
|
depends on BLK_INLINE_ENCRYPTION
|
|
select CRYPTO
|
|
select CRYPTO_SKCIPHER
|
|
help
|
|
Enabling this lets the block layer handle inline encryption
|
|
by falling back to the kernel crypto API when inline
|
|
encryption hardware is not present.
|
|
|
|
source "block/partitions/Kconfig"
|
|
|
|
config BLK_MQ_PCI
|
|
def_bool PCI
|
|
|
|
config BLK_MQ_VIRTIO
|
|
bool
|
|
depends on VIRTIO
|
|
default y
|
|
|
|
config BLK_PM
|
|
def_bool PM
|
|
|
|
# do not use in new code
|
|
config BLOCK_HOLDER_DEPRECATED
|
|
bool
|
|
|
|
config BLK_MQ_STACKING
|
|
bool
|
|
|
|
source "block/Kconfig.iosched"
|
|
|
|
endif # BLOCK
|