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linux-rockchip/block
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Jens Axboe 6d47e0f6a5 block: don't allow splitting of a REQ_NOWAIT bio 
commit 9cea62b2cbabff8ed46f2df17778b624ad9dd25a upstream.

If we split a bio marked with REQ_NOWAIT, then we can trigger spurious
EAGAIN if constituent parts of that split bio end up failing request
allocations. Parts will complete just fine, but just a single failure
in one of the chained bios will yield an EAGAIN final result for the
parent bio.

Return EAGAIN early if we end up needing to split such a bio, which
allows for saner recovery handling.

Cc: stable@vger.kernel.org # 5.15+
Link: https://github.com/axboe/liburing/issues/766
Reported-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-12 12:02:47 +01:00
..
partitions
block: don't add partitions if GD_SUPPRESS_PART_SCAN is set
2022-09-03 11:29:03 -06:00
badblocks.c
…
bdev.c
vfs: support STATX_DIOALIGN on block devices
2022-09-11 19:47:12 -05:00
bfq-cgroup.c
block, bfq: fix null pointer dereference in bfq_bio_bfqg()
2022-11-08 07:13:25 -07:00
bfq-iosched.c
block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq
2023-01-04 11:28:51 +01:00
bfq-iosched.h
block, bfq: remove unused variable for bfq_queue
2022-10-20 05:46:49 -07:00
bfq-wf2q.c
block, bfq: remove useless parameter for bfq_add/del_bfqq_busy()
2022-08-22 10:07:56 -06:00
bio-integrity.c
block: pass struct queue_limits to the bio splitting helpers
2022-08-02 21:08:53 -06:00
bio.c
Merge tag 'block-6.1-2022-10-20' of git://git.kernel.dk/linux
2022-10-21 15:14:14 -07:00
blk-cgroup-fc-appid.c
cgroup: Homogenize cgroup_get_from_id() return value
2022-08-26 10:57:41 -10:00
blk-cgroup-rwstat.c
…
blk-cgroup-rwstat.h
block: Use the new blk_opf_t type
2022-07-14 12:14:30 -06:00
blk-cgroup.c
blk-iolatency: Fix memory leak on add_disk() failures
2022-12-31 13:33:11 +01:00
blk-cgroup.h
blk-cgroup: pass a gendisk to blkcg_init_queue and blkcg_exit_queue
2022-09-26 19:09:31 -06:00
blk-core.c
block: make dma_alignment a stacking queue_limit
2022-11-16 15:58:11 -07:00
blk-crypto-fallback.c
treewide: use get_random_bytes() when possible
2022-10-11 17:42:58 -06:00
blk-crypto-internal.h
…
blk-crypto-profile.c
…
blk-crypto-sysfs.c
…
blk-crypto.c
…
blk-flush.c
block: change request end_io handler to pass back a return value
2022-09-30 07:49:09 -06:00
blk-ia-ranges.c
block: simplify disk_set_independent_access_ranges
2022-06-29 08:36:46 -06:00
blk-integrity.c
…
blk-ioc.c
…
blk-iocost.c
blk-cgroup: pass a gendisk to blkcg_schedule_throttle
2022-09-26 19:17:28 -06:00
blk-iolatency.c
blk-cgroup: pass a gendisk to blkcg_schedule_throttle
2022-09-26 19:17:28 -06:00
blk-ioprio.c
blk-ioprio: pass a gendisk to blk_ioprio_init and blk_ioprio_exit
2022-09-26 19:09:31 -06:00
blk-ioprio.h
blk-ioprio: pass a gendisk to blk_ioprio_init and blk_ioprio_exit
2022-09-26 19:09:31 -06:00
blk-lib.c
blk-lib: fix blkdev_issue_secure_erase
2022-09-15 00:25:17 -06:00
blk-map.c
block: extend functionality to map bvec iterator
2022-09-30 07:51:13 -06:00
blk-merge.c
block: don't allow splitting of a REQ_NOWAIT bio
2023-01-12 12:02:47 +01:00
blk-mq-cpumap.c
block: Change the return type of blk_mq_map_queues() into void
2022-08-22 10:07:53 -06:00
blk-mq-debugfs-zoned.c
block: move zone related fields to struct gendisk
2022-07-06 06:46:26 -06:00
blk-mq-debugfs.c
Merge tag 'for-6.1/block-2022-10-03' of git://git.kernel.dk/linux
2022-10-07 09:19:14 -07:00
blk-mq-debugfs.h
…
blk-mq-pci.c
block: Change the return type of blk_mq_map_queues() into void
2022-08-22 10:07:53 -06:00
blk-mq-rdma.c
block: Change the return type of blk_mq_map_queues() into void
2022-08-22 10:07:53 -06:00
blk-mq-sched.c
…
blk-mq-sched.h
…
blk-mq-sysfs.c
blk-mq: fix possible memleak when register 'hctx' failed
2022-12-31 13:33:03 +01:00
blk-mq-tag.c
sbitmap: fix batched wait_cnt accounting
2022-09-12 00:10:34 -06:00
blk-mq-tag.h
…
blk-mq-virtio.c
block: Change the return type of blk_mq_map_queues() into void
2022-08-22 10:07:53 -06:00
blk-mq.c
blk-mq: avoid double ->queue_rq() because of early timeout
2022-12-31 13:32:59 +01:00
blk-mq.h
block: adapt blk_mq_plug() to not plug for writes that require a zone lock
2022-09-29 07:45:47 -06:00
blk-pm.c
…
blk-pm.h
…
blk-rq-qos.c
block/rq_qos: Use atomic_try_cmpxchg in atomic_inc_below
2022-07-12 14:38:52 -06:00
blk-rq-qos.h
block/blk-rq-qos: delete useless enmu RQ_QOS_IOPRIO
2022-09-21 19:50:53 -06:00
blk-settings.c
block: make blk_set_default_limits() private
2022-11-16 15:58:11 -07:00
blk-stat.c
…
blk-stat.h
…
blk-sysfs.c
blk-throttle: pass a gendisk to blk_throtl_register_queue
2022-09-26 19:17:27 -06:00
blk-throttle.c
blk-throttle: pass a gendisk to blk_throtl_cancel_bios
2022-09-26 19:17:28 -06:00
blk-throttle.h
blk-throttle: pass a gendisk to blk_throtl_cancel_bios
2022-09-26 19:17:28 -06:00
blk-timeout.c
…
blk-wbt.c
blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init()
2022-10-09 07:48:16 -06:00
blk-wbt.h
…
blk-zoned.c
block: adapt blk_mq_plug() to not plug for writes that require a zone lock
2022-09-29 07:45:47 -06:00
blk.h
block: Do not reread partition table on exclusively open device
2023-01-04 11:29:01 +01:00
bounce.c
block: change the blk_queue_bounce calling convention
2022-08-02 17:22:54 -06:00
bsg-lib.c
blk-mq: Drop blk_mq_ops.timeout 'reserved' arg
2022-07-06 06:33:53 -06:00
bsg.c
…
disk-events.c
…
elevator.c
blk-mq: use quiesced elevator switch when reinitializing queues
2022-09-27 09:58:56 -06:00
elevator.h
block: Use the new blk_opf_t type
2022-07-14 12:14:30 -06:00
fops.c
new iov_iter flavour - ITER_UBUF
2022-08-08 22:37:15 -04:00
genhd.c
block: Do not reread partition table on exclusively open device
2023-01-04 11:29:01 +01:00
holder.c
…
ioctl.c
block: Do not reread partition table on exclusively open device
2023-01-04 11:29:01 +01:00
ioprio.c
…
Kconfig
…
Kconfig.iosched
…
kyber-iosched.c
block/kyber: Use the new blk_opf_t type
2022-07-14 12:14:30 -06:00
Makefile
…
mq-deadline.c
block: mq-deadline: Do not break sequential write streams to zoned HDDs
2023-01-07 11:11:51 +01:00
opal_proto.h
block: sed-opal: Add ioctl to return device status
2022-08-22 07:52:51 -06:00
sed-opal.c
block: sed-opal: kmalloc the cmd/resp buffers
2022-11-08 07:14:35 -07:00
t10-pi.c
…