Keith Busch fd9ecd0052 block: fix merging data-less bios ...

The data segment gaps the block layer tracks doesn't apply to bio's that
don't have data. Skip calculating this to fix a NULL pointer access.

Fixes: 2f6b2565d4 ("block: accumulate memory segment gaps per bio")
Reported-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Yu Kuai <yukuai@fnnas.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2025-11-11 08:35:59 -07:00

..

partitions

block: switch ->getgeo() to struct gendisk

2025-08-13 02:59:29 -04:00

badblocks.c

badblocks: Fix a nonsense WARN_ON() which checks whether a u64 variable < 0

2025-03-10 07:41:58 -06:00

bdev.c

fs: rename generic_delete_inode() and generic_drop_inode()

2025-09-15 16:09:42 +02:00

bfq-cgroup.c

Revert "block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()"

2024-11-19 19:05:32 -07:00

bfq-iosched.c

blk-mq: fix elevator depth_updated method

2025-09-05 13:52:52 -06:00

bfq-iosched.h

lib/sbitmap: convert shallow_depth from one word to the whole sbitmap

2025-08-07 06:30:17 -06:00

bfq-wf2q.c

block, bfq: inject I/O to underutilized actuators

2023-01-29 15:18:33 -07:00

bio-integrity-auto.c

block: make bio auto-integrity deadlock safe

2025-11-04 12:41:50 -07:00

bio-integrity.c

block: make bio auto-integrity deadlock safe

2025-11-04 12:41:50 -07:00

bio.c

block: accumulate memory segment gaps per bio

2025-11-06 18:11:58 -07:00

blk-cgroup-fc-appid.c

block: Replace all non-returning strlcpy with strscpy

2023-06-01 09:13:31 -06:00

blk-cgroup-rwstat.c

blk-cgroup: use group allocation/free of per-cpu counters API

2024-04-03 09:10:17 -06:00

blk-cgroup-rwstat.h

blk-cgroup: rwstat: fix kernel-doc warnings in header file

2025-01-13 07:47:09 -07:00

blk-cgroup.c

block: Remove elevator_lock usage from blkg_conf frozen operations

2025-10-15 08:00:19 -06:00

blk-cgroup.h

block: initialize bio issue time in blk_mq_submit_bio()

2025-09-10 05:23:45 -06:00

blk-core.c

Merge tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

2025-10-02 10:16:56 -07:00

blk-crypto-fallback.c

blk-crypto: convert to use bio_submit_split_bioset()

2025-09-10 05:23:46 -06:00

blk-crypto-internal.h

blk-crypto: add ioctls to create and prepare hardware-wrapped keys

2025-02-10 09:54:19 -07:00

blk-crypto-profile.c

blk-crypto: export wrapped key functions

2025-05-06 19:08:08 +02:00

blk-crypto-sysfs.c

blk-crypto: show supported key types in sysfs

2025-02-10 09:54:19 -07:00

blk-crypto.c

blk-crypto: add ioctls to create and prepare hardware-wrapped keys

2025-02-10 09:54:19 -07:00

blk-flush.c

block: remove unused parameter

2025-03-12 08:25:28 -06:00

blk-ia-ranges.c

block: get rid of request queue ->sysfs_dir_lock

2025-01-29 07:16:47 -07:00

blk-integrity.c

Merge tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

2025-10-02 10:16:56 -07:00

blk-ioc.c

copy_process: pass clone_flags as u64 across calltree

2025-09-01 15:31:34 +02:00

blk-iocost.c

Merge tag 'for-6.15/block-20250322' of git://git.kernel.dk/linux

2025-03-26 18:08:55 -07:00

blk-iolatency.c

blk-mq: add QUEUE_FLAG_BIO_ISSUE_TIME

2025-09-10 05:23:45 -06:00

blk-ioprio.c

blk-cgroup: Simplify policy files registration

2025-03-11 09:22:55 -10:00

blk-ioprio.h

blk-ioprio: remove per-disk structure

2024-07-28 16:47:51 -06:00

blk-lib.c

block: use largest_zero_folio in __blkdev_issue_zero_pages()

2025-09-13 16:54:54 -07:00

blk-map.c

block: accumulate memory segment gaps per bio

2025-11-06 18:11:58 -07:00

blk-merge.c

block: fix merging data-less bios

2025-11-11 08:35:59 -07:00

blk-mq-cpumap.c

blk-mq: add number of queue calc helper

2025-07-01 10:24:19 -06:00

blk-mq-debugfs.c

blk-mq: add QUEUE_FLAG_BIO_ISSUE_TIME

2025-09-10 05:23:45 -06:00

blk-mq-debugfs.h

block: Replace zone_wlock debugfs entry with zone_wplugs entry

2024-04-17 08:44:03 -06:00

blk-mq-dma.c

block: clean up indentation in blk_rq_map_iter_init()

2025-11-08 06:38:18 -07:00

blk-mq-sched.c

blk-mq: use struct_size() in kmalloc()

2025-10-20 10:38:56 -06:00

blk-mq-sched.h

blk-mq-sched: add new parameter nr_requests in blk_mq_alloc_sched_tags()

2025-09-10 05:25:56 -06:00

blk-mq-sysfs.c

blk-mq: Move flush queue allocation into blk_mq_init_hctx()

2025-09-08 08:05:32 -06:00

blk-mq-tag.c

blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr_requests()

2025-10-15 07:49:19 -06:00

blk-mq.c

block: accumulate memory segment gaps per bio

2025-11-06 18:11:58 -07:00

blk-mq.h

blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr_requests()

2025-10-15 07:49:19 -06:00

blk-pm.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-pm.h

…

blk-rq-qos.c

block: avoid cpu_hotplug_lock depedency on freeze_lock

2025-08-21 07:11:11 -06:00

blk-rq-qos.h

block: validate QoS before calling __rq_qos_done_bio()

2025-08-26 10:34:08 -06:00

blk-settings.c

block: add lockdep to queue_limits_commit_update()

2025-11-11 07:51:08 -07:00

blk-stat.c

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08 09:07:37 +02:00

blk-stat.h

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

blk-sysfs.c

blk-mq: fix potential deadlock while nr_requests grown

2025-09-10 05:25:56 -06:00

blk-throttle.c

blk-throttle: fix throtl_data leak during disk release

2025-09-17 07:27:29 -06:00

blk-throttle.h

blk-throttle: fix access race during throttle policy activation

2025-09-08 08:24:44 -06:00

blk-timeout.c

…

blk-wbt.c

blk-wbt: Eliminate ambiguity in the comments of struct rq_wb

2025-08-11 10:21:38 -06:00

blk-wbt.h

blk-wbt: remove the separate write cache tracking

2023-12-26 09:28:10 -07:00

blk-zoned.c

block: introduce bdev_zone_start()

2025-11-07 09:28:08 -07:00

blk.h

block: handle zone management operations completions

2025-11-05 08:07:21 -07:00

bsg-lib.c

block: remove unused parameter 'q' parameter in __blk_rq_map_sg()

2025-03-13 05:46:19 -06:00

bsg.c

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

2023-06-30 11:57:07 -07:00

disk-events.c

block: move bdev_mark_dead out of disk_check_media_change

2023-10-28 13:29:23 +02:00

early-lookup.c

wrapper for access to ->bd_partno

2024-05-02 17:48:09 -04:00

elevator.c

blk-mq-sched: add new parameter nr_requests in blk_mq_alloc_sched_tags()

2025-09-10 05:25:56 -06:00

elevator.h

blk-mq: fix elevator depth_updated method

2025-09-05 13:52:52 -06:00

fops.c

block: move bio_iov_iter_get_bdev_pages to block/fops.c

2025-10-07 08:05:44 -06:00

genhd.c

block: fix kobject double initialization in add_disk

2025-08-11 08:00:49 -06:00

holder.c

block: fix deadlock between bd_link_disk_holder and partition scan

2024-02-23 07:44:19 -07:00

ioctl.c

block: introduce BLKREPORTZONESV2 ioctl

2025-11-05 08:07:21 -07:00

ioprio.c

block: remove test of incorrect io priority level

2025-05-08 09:04:12 -06:00

Kconfig

block: Remove obsolete configs BLK_MQ_{PCI,VIRTIO}

2025-05-14 05:43:56 -06:00

Kconfig.iosched

block: Default to use cgroup support for BFQ

2023-01-30 09:42:42 -07:00

kyber-iosched.c

blk-mq: fix elevator depth_updated method

2025-09-05 13:52:52 -06:00

Makefile

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

2025-05-16 08:43:41 -06:00

mq-deadline.c

block/mq-deadline: Switch back to a single dispatch list

2025-10-20 10:37:42 -06:00

opal_proto.h

block: sed-opal: handle empty atoms when parsing response

2024-02-16 15:52:45 -07:00

sed-opal.c

block: sed-opal: add ioctl IOC_OPAL_SET_SID_PW

2024-10-22 08:16:40 -06:00

t10-pi.c

block: rename tuple_size field in blk_integrity to metadata_size

2025-07-01 14:00:14 +02:00