Changes in Makefile

e8dcf2d142bd720c8334233ad6cfdf00f0e76b7f - block: add configurable error injection

Thu, 11 Jun 2026 16:06:47 +0200

block: add configurable error injectionAdd a new block error injection interface that allows to inject specificstatus code for specific ranges.Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Md Haris Iqbal Link: https://patch.msgid.link/20260611140703.2401204-5-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

5f0777166e3eaefc02ec0e381658f510f4d068ce - block: Enable lock context analysis

Fri, 05 Jun 2026 20:01:07 +0200

block: Enable lock context analysisNow that all block/*.c files have been annotated, enable lock contextanalysis for all these source files.Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Signed-off-by: Bart Van Assche Reviewed-by: Chaitanya Kulkarni Link: https://patch.msgid.link/e248ca3aeead238bbc489cf3afdafcbff9e41faf.1780682325.git.bvanassche@acm.orgSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

0bde8a12b5540572a7fd6d2867bee6de15e4f289 - block: add fs_bio_integrity helpers

Mon, 23 Feb 2026 14:20:06 +0100

block: add fs_bio_integrity helpersAdd a set of helpers for file system initiated integrity information.These include mempool backed allocations and verifying based on a passedin sector and size which is often available from file system completionroutines.Signed-off-by: Christoph Hellwig Reviewed-by: Anuj Gupta Reviewed-by: Kanchan Joshi Reviewed-by: Martin K. Petersen Reviewed-by: Darrick J. Wong Tested-by: Anuj Gupta Signed-off-by: Jens Axboe List of files: /linux/block/Makefile

b0a4158554b9017467435069c1b327f35987b495 - blk-mq: move the DMA mapping code to a separate file

Tue, 13 May 2025 09:14:32 +0200

blk-mq: move the DMA mapping code to a separate fileWhile working on the new DMA API I kept getting annoyed how it was placedright in the middle of the bio splitting code in blk-merge.c.Split it out into a separate file.Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20250513071433.836797-1-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

eeadd68e2a5f6bfe0bf1038ec49e3a8d99eb5fe8 - block: remove bounce buffering support

Mon, 05 May 2025 10:11:25 +0200

block: remove bounce buffering supportThe block layer bounce buffering support is unused now, remove it.Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: John Garry Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20250505081138.3435992-7-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

e51679112c56ce327d6143caea0f0d2bd4618c4d - block: move the block layer auto-integrity code into a new file

Tue, 25 Feb 2025 16:44:32 +0100

block: move the block layer auto-integrity code into a new fileThe code that automatically creates a integrity payload and generates andverifies the checksums for bios that don't have submitter-providedintegrity payload currently sits right in the middle of the blockintegrity metadata infrastructure. Split it into a separate file tomake the different layers clear.Signed-off-by: Christoph Hellwig Reviewed-by: Anuj Gupta Reviewed-by: Kanchan Joshi Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20250225154449.422989-3-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

9bc1e897a821f19ba3775bb013a8a6fb121c3ca1 - blk-mq: remove unused queue mapping helpers

Mon, 02 Dec 2024 15:00:16 +0100

blk-mq: remove unused queue mapping helpersThere are no users left of the pci and virtio queue mapping helpers.Thus remove them.Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: Ming Lei Reviewed-by: John Garry Signed-off-by: Daniel Wagner Link: https://lore.kernel.org/r/20241202-refactor-blk-affinity-helpers-v6-8-27211e9c2cd5@kernel.orgSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

e9f5f44ad3725335d9c559c3c22cd3726152a7b1 - block: remove the blk_integrity_profile structure

Thu, 13 Jun 2024 10:48:15 +0200

block: remove the blk_integrity_profile structureBlock layer integrity configuration is a bit complex right now, as itindirects through operation vectors for a simple two-dimensionalconfiguration: a) the checksum type of none, ip checksum, crc, crc64 b) the presence or absence of a reference tagRemove the integrity profile, and instead add a separate csum_type flagwhich replaces the existing ip-checksum field and a new flag thatindicates the presence of the reference tag.This removes up to two layers of indirect calls, remove the need tooffload the no-op verification of non-PI metadata to a workqueue andgenerally simplifies the code. The downside is that block/t10-pi.c nowhas to be built into the kernel when CONFIG_BLK_DEV_INTEGRITY issupported. Given that both nvme and SCSI require t10-pi.ko, it is loadedfor all usual configurations that enabled CONFIG_BLK_DEV_INTEGRITYalready, though.Signed-off-by: Christoph Hellwig Reviewed-by: Kanchan Joshi Reviewed-by: Hannes Reinecke Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20240613084839.1044015-6-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

d9f1439a30d607f7bd06494ea2a63018b7d46380 - block: Move zone related debugfs attribute to blk-zoned.c

Mon, 08 Apr 2024 03:41:24 +0200

block: Move zone related debugfs attribute to blk-zoned.cblock/blk-mq-debugfs-zone.c contains a single debugfs attributefunction. Defining this outside of block/blk-zoned.c does not reallyhelp in any way, so move this zone related debugfs attribute toblock/blk-zoned.c and delete block/blk-mq-debugfs-zone.c.Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche Tested-by: Hans Holmberg Tested-by: Dennis Maisenbacher Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20240408014128.205141-25-dlemoal@kernel.orgSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

702f3189e454b3c3c2f3c99dbf30acf41aab707c - block: move the code to do early boot lookup of block devices to block/

Wed, 31 May 2023 14:55:26 +0200

block: move the code to do early boot lookup of block devices to block/Create a new block/early-lookup.c to keep the early block device lookupcode instead of having this code sit with the early mount code.Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20230531125535.676098-16-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

edde9e70bb48301c853299f1bd7c0aa0745a38ea - blk-mq-rdma: remove queue mapping helper for rdma devices

Wed, 22 Mar 2023 13:37:03 +0100

blk-mq-rdma: remove queue mapping helper for rdma devicesNo rdma device exposes its irq vectors affinity today. So the onlymapping that we have left, is the default blk_mq_map_queues, whichwe fallback to anyways. Also fixup the only consumer of this helper(nvme-rdma).Remove this now dead code.Signed-off-by: Sagi Grimberg Acked-by: Keith Busch Signed-off-by: Christoph Hellwig List of files: /linux/block/Makefile

db05628435aa761d30b4eae481a82befe7a8492a - blk-cgroup: move blkcg_{get,set}_fc_appid out of line

Wed, 20 Apr 2022 06:27:12 +0200

blk-cgroup: move blkcg_{get,set}_fc_appid out of lineNo need to have these helpers inline. Also remove the stubs and just usean IS_ENABLED for the get side (the set side already is only builtconditionlly).Signed-off-by: Christoph Hellwig Acked-by: Tejun Heo Link: https://lore.kernel.org/r/20220420042723.1010598-5-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

20f01f163203666010ee1560852590a0c0572726 - blk-crypto: show crypto capabilities in sysfs

Mon, 24 Jan 2022 22:59:38 +0100

blk-crypto: show crypto capabilities in sysfsAdd sysfs files that expose the inline encryption capabilities ofrequest queues: /sys/block/$disk/queue/crypto/max_dun_bits /sys/block/$disk/queue/crypto/modes/$mode /sys/block/$disk/queue/crypto/num_keyslotsUserspace can use these new files to decide what encryption settings touse, or whether to use inline encryption at all. This also brings thecrypto capabilities in line with the other queue properties, which arealready discoverable via the queue directory in sysfs.Design notes: - Place the new files in a new subdirectory "crypto" to group them together and to avoid complicating the main "queue" directory. This also makes it possible to replace "crypto" with a symlink later if we ever make the blk_crypto_profiles into real kobjects (see below). - It was necessary to define a new kobject that corresponds to the crypto subdirectory. For now, this kobject just contains a pointer to the blk_crypto_profile. Note that multiple queues (and hence multiple such kobjects) may refer to the same blk_crypto_profile. An alternative design would more closely match the current kernel data structures: the blk_crypto_profile could be a kobject itself, located directly under the host controller device's kobject, while /sys/block/$disk/queue/crypto would be a symlink to it. I decided not to do that for now because it would require a lot more changes, such as no longer embedding blk_crypto_profile in other structures, and also because I'm not sure we can rule out moving the crypto capabilities into 'struct queue_limits' in the future. (Even if multiple queues share the same crypto engine, maybe the supported data unit sizes could differ due to other queue properties.) It would also still be possible to switch to that design later without breaking userspace, by replacing the directory with a symlink. - Use "max_dun_bits" instead of "max_dun_bytes". Currently, the kernel internally stores this value in bytes, but that's an implementation detail. It probably makes more sense to talk about this value in bits, and choosing bits is more future-proof. - "modes" is a sub-subdirectory, since there may be multiple supported crypto modes, sysfs is supposed to have one value per file, and it makes sense to group all the mode files together. - Each mode had to be named. The crypto API names like "xts(aes)" are not appropriate because they don't specify the key size. Therefore, I assigned new names. The exact names chosen are arbitrary, but they happen to match the names used in log messages in fs/crypto/. - The "num_keyslots" file is a bit different from the others in that it is only useful to know for performance reasons. However, it's included as it can still be useful. For example, a user might not want to use inline encryption if there aren't very many keyslots.Reviewed-by: Hannes Reinecke Signed-off-by: Eric Biggers Link: https://lore.kernel.org/r/20220124215938.2769-4-ebiggers@kernel.orgSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

4054cff92c357813b6861b622122b344990f7e31 - block: remove blk-exec.c

Wed, 17 Nov 2021 07:13:56 +0100

block: remove blk-exec.cAll this code is tightly coupled to the blk-mq core, so move itthere.Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20211117061404.331732-4-hch@lst.de[axboe: remove doc generation for blk-exec.c]Signed-off-by: Jens Axboe List of files: /linux/block/Makefile

a2247f19ee1c5ad75ef095cdfb909a3244b88aa8 - block: Add independent access ranges support

Wed, 27 Oct 2021 04:22:19 +0200

block: Add independent access ranges supportThe Concurrent Positioning Ranges VPD page (for SCSI) and data log page(for ATA) contain parameters describing the set of contiguous LBAs thatcan be served independently by a single LUN multi-actuator hard-disk.Similarly, a logically defined block device composed of multiple diskscan in some cases execute requests directed at different sector rangesin parallel. A dm-linear device aggregating 2 block devices together isan example.This patch implements support for exposing a block device independentaccess ranges to the user through sysfs to allow optimizing deviceaccesses to increase performance.To describe the set of independent sector ranges of a device (actuatorsof a multi-actuator HDDs or table entries of a dm-linear device),The type struct blk_independent_access_ranges is introduced. Thisstructure describes the sector ranges using an array ofstruct blk_independent_access_range structures. This range structuredefines the start sector and number of sectors of the access range.The ranges in the array cannot overlap and must contain all sectorswithin the device capacity.The function disk_set_independent_access_ranges() allows a devicedriver to signal to the block layer that a device has multipleindependent access ranges. In this case, a structblk_independent_access_ranges is attached to the device request queueby the function disk_set_independent_access_ranges(). The functiondisk_alloc_independent_access_ranges() is provided for drivers toallocate this structure.struct blk_independent_access_ranges contains kobjects (struct kobject)to expose to the user through sysfs the set of independent access rangessupported by a device. When the device is initialized, sysfsregistration of the ranges information is done from blk_register_queue()using the block layer internal functiondisk_register_independent_access_ranges(). If a driver callsdisk_set_independent_access_ranges() for a registered queue, e.g. when adevice is revalidated, disk_set_independent_access_ranges() will executedisk_register_independent_access_ranges() to update the sysfs attributefiles. The sysfs file structure created starts from theindependent_access_ranges sub-directory and contains the start sectorand number of sectors of each range, with the information for each rangegrouped in numbered sub-directories.E.g. for a dual actuator HDD, the user sees:$ tree /sys/block/sdk/queue/independent_access_ranges//sys/block/sdk/queue/independent_access_ranges/|-- 0| |-- nr_sectors| `-- sector`-- 1 |-- nr_sectors `-- sectorFor a regular device with a single access range, theindependent_access_ranges sysfs directory does not exist.Device revalidation may lead to changes to this structure and to theattribute values. When manipulated, the queue sysfs_lock andsysfs_dir_lock mutexes are held for atomicity, similarly to how theblk-mq and elevator sysfs queue sub-directories are protected.The code related to the management of independent access ranges isadded in the new file block/blk-ia-ranges.c.Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Martin K. Petersen Reviewed-by: Keith Busch Link: https://lore.kernel.org/r/20211027022223.183838-2-damien.lemoal@wdc.comSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

1e8d44bddf57f6d878e083f281a34d5c88feb7db - blk-crypto: rename keyslot-manager files to blk-crypto-profile

Mon, 18 Oct 2021 20:04:51 +0200

blk-crypto: rename keyslot-manager files to blk-crypto-profileIn preparation for renaming struct blk_keyslot_manager to structblk_crypto_profile, rename the keyslot-manager.h and keyslot-manager.csource files. Renaming these files separately before making a lot ofchanges to their contents makes it easier for git to understand thatthey were renamed.Acked-by: Ulf Hansson # For MMCReviewed-by: Christoph Hellwig Reviewed-by: Mike Snitzer Reviewed-by: Martin K. Petersen Signed-off-by: Eric Biggers Link: https://lore.kernel.org/r/20211018180453.40441-3-ebiggers@kernel.orgSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

4c928904ff771a8e830773b71a080047365324a5 - block: move CONFIG_BLOCK guard to top Makefile

Mon, 27 Sep 2021 16:00:00 +0200

block: move CONFIG_BLOCK guard to top MakefileEvery object under block/ depends on CONFIG_BLOCK.Move the guard to the top Makefile since there is no point todescend into block/ if CONFIG_BLOCK=n.Signed-off-by: Masahiro Yamada Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20210927140000.866249-5-masahiroy@kernel.orgSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

c0f7e49fc480a97770e448e0c0493e7ba46a9852 - Merge tag 'block-5.15-2021-09-11' of git://git.kernel.dk/linux-block

Sat, 11 Sep 2021 19:19:51 +0200

Merge tag 'block-5.15-2021-09-11' of git://git.kernel.dk/linux-blockPull block fixes from Jens Axboe: - NVMe pull request from Christoph: - fix nvmet command set reporting for passthrough controllers (Adam Manzanares) - update a MAINTAINERS email address (Chaitanya Kulkarni) - set QUEUE_FLAG_NOWAIT for nvme-multipth (me) - handle errors from add_disk() (Luis Chamberlain) - update the keep alive interval when kato is modified (Tatsuya Sasaki) - fix a buffer overrun in nvmet_subsys_attr_serial (Hannes Reinecke) - do not reset transport on data digest errors in nvme-tcp (Daniel Wagner) - only call synchronize_srcu when clearing current path (Daniel Wagner) - revalidate paths during rescan (Hannes Reinecke) - Split out the fs/block_dev into block/fops.c and block/bdev.c, which has been long overdue. Do this now before -rc1, to avoid annoying conflicts due to this (Christoph) - blk-throtl use-after-free fix (Li) - Improve plug depth for multi-device plugs, greatly increasing md resync performance (Song) - blkdev_show() locking fix (Tetsuo) - n64cart error check fix (Yang)* tag 'block-5.15-2021-09-11' of git://git.kernel.dk/linux-block: n64cart: fix return value check in n64cart_probe() blk-mq: allow 4x BLK_MAX_REQUEST_COUNT at blk_plug for multiple_queues block: move fs/block_dev.c to block/bdev.c block: split out operations on block special files blk-throttle: fix UAF by deleteing timer in blk_throtl_exit() block: genhd: don't call blkdev_show() with major_names_lock held nvme: update MAINTAINERS email address nvme: add error handling support for add_disk() nvme: only call synchronize_srcu when clearing current path nvme: update keep alive interval when kato is modified nvme-tcp: Do not reset transport on data digest errors nvmet: fixup buffer overrun in nvmet_subsys_attr_serial() nvmet: return bool from nvmet_passthru_ctrl and nvmet_is_passthru_req nvmet: looks at the passthrough controller when initializing CAP nvme: move nvme_multi_css into nvme.h nvme-multipath: revalidate paths during rescan nvme-multipath: set QUEUE_FLAG_NOWAIT List of files: /linux/block/Makefile

0dca4462ed0681649fdcd5700a6ddfbaa65fa178 - block: move fs/block_dev.c to block/bdev.c

Tue, 07 Sep 2021 16:13:03 +0200

block: move fs/block_dev.c to block/bdev.cMove it together with the rest of the block layer.Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20210907141303.1371844-3-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux/block/Makefile

cd82cca7ebfe9c6c74a8e5b28382ba88177ba5f1 - block: split out operations on block special files

Tue, 07 Sep 2021 16:13:02 +0200

block: split out operations on block special filesAdd a new block/fops.c for all the file and address_space operationsthat provide the block special file support.Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20210907141303.1371844-2-hch@lst.de[axboe: correct trailing whitespace while at it]Signed-off-by: Jens Axboe List of files: /linux/block/Makefile