Jens Axboe 67d59247d4 block: don't allow multiple bios for IOCB_NOWAIT issue ... If we're doing a large IO request which needs to be split into multiple bios for issue, then we can run into the same situation as the below marked commit fixes - parts will complete just fine, one or more parts will fail to allocate a request. This will result in a partially completed read or write request, where the caller gets EAGAIN even though parts of the IO completed just fine. Do the same for large bios as we do for splits - fail a NOWAIT request with EAGAIN. This isn't technically fixing an issue in the below marked patch, but for stable purposes, we should have either none of them or both. This depends on: 613b14884b ("block: handle bio_split_to_limits() NULL return") Cc: stable@vger.kernel.org # 5.15+ Fixes: 9cea62b2cb ("block: don't allow splitting of a REQ_NOWAIT bio") Link: https://github.com/axboe/liburing/issues/766 Reported-and-tested-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2023-01-29 15:18:34 -07:00
..
partitions	block: don't add partitions if GD_SUPPRESS_PART_SCAN is set	2022-09-03 11:29:03 -06:00
badblocks.c	block/badblocks: Remove redundant assignments	2022-04-23 07:15:26 -06:00
bdev.c	block: bdev & blktrace: use consistent function doc. notation	2022-12-01 09:16:46 -07:00
bfq-cgroup.c	block, bfq: inject I/O to underutilized actuators	2023-01-29 15:18:33 -07:00
bfq-iosched.c	block, bfq: balance I/O injection among underutilized actuators	2023-01-29 15:18:33 -07:00
bfq-iosched.h	block, bfq: inject I/O to underutilized actuators	2023-01-29 15:18:33 -07:00
bfq-wf2q.c	block, bfq: inject I/O to underutilized actuators	2023-01-29 15:18:33 -07:00
bio-integrity.c	block: pass struct queue_limits to the bio splitting helpers	2022-08-02 21:08:53 -06:00
bio.c	block: add a BUILD_BUG_ON() for adding more bio flags than we have space	2023-01-29 15:18:33 -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: Fix the recursive blkg rwstat	2021-03-05 11:32:15 -07:00
blk-cgroup-rwstat.h	block: Use the new blk_opf_t type	2022-07-14 12:14:30 -06:00
blk-cgroup.c	blk-cgroup: fix missing pd_online_fn() while activating policy	2023-01-16 19:04:07 -07:00
blk-cgroup.h	blk-cgroup: Optimize blkcg_rstat_flush()	2022-11-16 16:58:44 -07:00
blk-core.c	block: Drop spurious might_sleep() from blk_put_queue()	2023-01-08 20:29:28 -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: pass a gendisk to blk_crypto_sysfs_{,un}register	2022-11-30 11:09:00 -07:00
blk-crypto-profile.c	blk-crypto: Add a missing include directive	2022-11-23 10:38:54 -07:00
blk-crypto-sysfs.c	block: untangle request_queue refcounting from sysfs	2022-11-30 11:09:00 -07:00
blk-crypto.c	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
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: untangle request_queue refcounting from sysfs	2022-11-30 11:09:00 -07:00
blk-integrity.c	blk-crypto: remove blk_crypto_unregister()	2021-11-29 06:38:51 -07:00
blk-ioc.c	block: fix default IO priority handling again	2022-06-27 06:29:12 -06:00
blk-iocost.c	treewide: Convert del_timer*() to timer_shutdown*()	2022-12-25 13:38:09 -08:00
blk-iolatency.c	treewide: Convert del_timer*() to timer_shutdown*()	2022-12-25 13:38:09 -08:00
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: set FOLL_PCI_P2PDMA in bio_map_user_iov()	2022-11-09 11:29:21 -07:00
blk-merge.c	block: don't allow splitting of a REQ_NOWAIT bio	2023-01-04 13:24:44 -07:00
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	for-6.1/block-2022-10-03	2022-10-07 09:19:14 -07:00
blk-mq-debugfs.h	block: remove per-disk debugfs files in blk_unregister_queue	2022-06-17 07:31:05 -06:00
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	block: split elevator_switch	2022-11-01 09:12:24 -06:00
blk-mq-sched.h	block: move blk_mq_sched_assign_ioc to blk-ioc.c	2021-11-29 06:41:29 -07:00
blk-mq-sysfs.c	blk-mq: fix possible memleak when register 'hctx' failed	2022-11-25 06:34:03 -07:00
blk-mq-tag.c	sbitmap: fix batched wait_cnt accounting	2022-09-12 00:10:34 -06:00
blk-mq-tag.h	blk-mq: blk_mq_tag_busy is no need to return a value	2022-06-27 06:29:12 -06:00
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	block: fix hctx checks for batch allocation	2023-01-17 09:56:52 -07:00
blk-mq.h	blk-mq: move the srcu_struct used for quiescing to the tagset	2022-11-02 08:35:34 -06:00
blk-pm.c	scsi: block: pm: Always set request queue runtime active in blk_post_runtime_resume()	2021-12-22 23:38:29 -05:00
blk-pm.h	block: Remove unused blk_pm_*() function definitions	2021-02-22 06:33:48 -07:00
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: save user max_sectors limit	2023-01-29 15:18:33 -07:00
blk-stat.c	block: make queue stat accounting a reference	2021-12-14 17:23:05 -07:00
blk-stat.h	block: make queue stat accounting a reference	2021-12-14 17:23:05 -07:00
blk-sysfs.c	block: save user max_sectors limit	2023-01-29 15:18:33 -07:00
blk-throttle.c	blk-throttle: Use more suitable time_after check for update of slice_start	2022-12-05 13:45:31 -07:00
blk-throttle.h	blk-throttle: pass a gendisk to blk_throtl_cancel_bios	2022-09-26 19:17:28 -06:00
blk-timeout.c	block: blk-timeout: delete duplicated word	2020-07-31 16:29:47 -06:00
blk-wbt.c	blk-wbt: don't enable throttling if default elevator is bfq	2022-10-23 18:59:17 -06:00
blk-wbt.h	blk-wbt: don't show valid wbt_lat_usec in sysfs while wbt is disabled	2022-10-23 18:59:17 -06:00
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	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
bounce.c	block: change the blk_queue_bounce calling convention	2022-08-02 17:22:54 -06:00
bsg-lib.c	blk-mq: move the call to blk_put_queue out of blk_mq_destroy_queue	2022-10-25 08:25:10 -06:00
bsg.c	Driver Core changes for 6.2-rc1	2022-12-16 03:54:54 -08:00
disk-events.c	block: remove genhd.h	2022-02-02 07:49:59 -07:00
elevator.c	block: untangle request_queue refcounting from sysfs	2022-11-30 11:09:00 -07:00
elevator.h	block: add proper helpers for elevator_type module refcount management	2022-10-23 18:59:17 -06:00
fops.c	block: don't allow multiple bios for IOCB_NOWAIT issue	2023-01-29 15:18:34 -07:00
genhd.c	block-2023-01-06	2023-01-06 13:12:42 -08:00
holder.c	block: don't allow a disk link holder to itself	2022-11-16 15:19:56 -07:00
ioctl.c	block: Do not reread partition table on exclusively open device	2022-12-01 07:44:03 -07:00
ioprio.c	block: Fix handling of tasks without ioprio in ioprio_get(2)	2022-06-27 06:29:12 -06:00
Kconfig	block: Remove "select SRCU"	2023-01-05 08:50:10 -07:00
Kconfig.iosched	block: only build the icq tracking code when needed	2021-12-16 10:59:02 -07:00
kyber-iosched.c	treewide: Convert del_timer*() to timer_shutdown*()	2022-12-25 13:38:09 -08:00
Makefile	blk-cgroup: move blkcg_{get,set}_fc_appid out of line	2022-05-02 14:06:20 -06:00
mq-deadline.c	block: mq-deadline: Rename deadline_is_seq_writes()	2022-11-28 19:27:45 -07:00
opal_proto.h	block: sed-opal: Add ioctl to return device status	2022-08-22 07:52:51 -06:00
sed-opal.c	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
t10-pi.c	block: add pi for extended integrity	2022-03-07 12:48:35 -07:00