Jens Axboe 2bc0576925 block: don't make REQ_POLLED imply REQ_NOWAIT ... Normally these two flags do go together, as the issuer of polled IO generally cannot wait for resources that will get freed as part of IO completion. This is because that very task is the one that will complete the request and free those resources, hence that would introduce a deadlock. But it is possible to have someone else issue the polled IO, eg via io_uring if the request is punted to io-wq. For that case, it's fine to have the task block on IO submission, as it is not the same task that will be completing the IO. It's completely up to the caller to ask for both polled and nowait IO separately! If we don't allow polled IO where IOCB_NOWAIT isn't set in the kiocb, then we can run into repeated -EAGAIN submissions and not make any progress. Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2023-08-09 16:04:07 -06:00
..
partitions	block/partition: fix signedness issue for Amiga partitions	2023-07-05 16:34:56 -06:00
badblocks.c
bdev.c	block: Improve kernel-doc headers	2023-06-21 13:18:15 -06:00
bfq-cgroup.c	blkcg: Restructure blkg_conf_prep() and friends	2023-04-13 06:46:49 -06:00
bfq-iosched.c	SCSI misc on 20230629	2023-06-30 11:57:07 -07:00
bfq-iosched.h	block, bfq: remove BFQ_WEIGHT_LEGACY_DFL	2023-04-06 16:17:32 -06:00
bfq-wf2q.c	block, bfq: inject I/O to underutilized actuators	2023-01-29 15:18:33 -07:00
bio-integrity.c	block: bio-integrity: Copy flags when bio_integrity_payload is cloned	2023-02-16 11:05:41 -07:00
bio.c	block: add bio_add_folio_nofail	2023-06-01 09:13:31 -06:00
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	Revert "blk-cgroup: pin the gendisk in struct blkcg_gq"	2023-02-14 14:24:09 -07:00
blk-cgroup-rwstat.h
blk-cgroup.c	Merge branch 'for-6.5/block-late' into block-6.5	2023-06-28 16:08:19 -06:00
blk-cgroup.h	for-6.4/block-2023-04-21	2023-04-26 12:52:58 -07:00
blk-core.c	block: get rid of unused plug->nowait flag	2023-08-08 15:50:37 -06:00
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: remove blk_crypto_insert_cloned_request()	2023-03-16 09:35:09 -06:00
blk-crypto-profile.c	blk-crypto: use dynamic lock class for blk_crypto_profile::lock	2023-07-05 16:36:12 -06:00
blk-crypto-sysfs.c	block: make kobj_type structures constant	2023-02-09 09:38:16 -07:00
blk-crypto.c	blk-crypto: make blk_crypto_evict_key() more robust	2023-03-16 09:35:09 -06:00
blk-flush.c	block: queue data commands from the flush state machine at the head	2023-07-14 08:42:58 -06:00
blk-ia-ranges.c	block: make kobj_type structures constant	2023-02-09 09:38:16 -07:00
blk-integrity.c	blk-integrity: register sysfs attributes on struct device	2023-04-26 18:22:50 -06:00
blk-ioc.c	blk-ioc: fix recursive spin_lock/unlock_irq() in ioc_clear_queue()	2023-06-07 07:51:00 -06:00
blk-iocost.c	blk-iocost: skip empty flush bio in iocost	2023-07-20 14:02:17 -06:00
blk-iolatency.c	blk-iolatency: Make initialization lazy	2023-04-13 06:46:49 -06:00
blk-ioprio.c	blk-ioprio: Introduce promote-to-rt policy	2023-06-06 22:26:26 -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	for-6.5/block-2023-06-23	2023-06-26 12:47:20 -07:00
blk-merge.c	blk-mq: release crypto keyslot before reporting I/O complete	2023-03-16 09:35:09 -06:00
blk-mq-cpumap.c	blk-mq: include <linux/blk-mq.h> in block/blk-mq.h	2023-04-13 06:52:29 -06:00
blk-mq-debugfs-zoned.c
blk-mq-debugfs.c	blk-mq: fix potential io hang by wrong 'wake_batch'	2023-06-12 09:55:53 -06:00
blk-mq-debugfs.h
blk-mq-pci.c	blk-mq: include <linux/blk-mq.h> in block/blk-mq.h	2023-04-13 06:52:29 -06:00
blk-mq-sched.c	blk-mq: cleanup __blk_mq_sched_dispatch_requests	2023-04-13 06:57:18 -06:00
blk-mq-sched.h	blk-mq: make sure elevator callbacks aren't called for passthrough request	2023-05-18 19:42:54 -06:00
blk-mq-sysfs.c	blk-mq: include <linux/blk-mq.h> in block/blk-mq.h	2023-04-13 06:52:29 -06:00
blk-mq-tag.c	for-6.5/block-2023-06-23	2023-06-26 12:47:20 -07:00
blk-mq-virtio.c	blk-mq: include <linux/blk-mq.h> in block/blk-mq.h	2023-04-13 06:52:29 -06:00
blk-mq.c	blk-mq: Fix stall due to recursive flush plug	2023-07-14 13:44:24 -06:00
blk-mq.h	blk-mq: fix potential io hang by wrong 'wake_batch'	2023-06-12 09:55:53 -06:00
blk-pm.c	blk-mq: include <linux/blk-mq.h> in block/blk-mq.h	2023-04-13 06:52:29 -06:00
blk-pm.h
blk-rq-qos.c	block/rq_qos: protect rq_qos apis with a new lock	2023-05-23 11:13:19 -06:00
blk-rq-qos.h	blk-iolatency: s/blkcg_rq_qos/iolat_rq_qos/	2023-04-13 06:46:49 -06:00
blk-settings.c	block: fix revalidate performance regression	2023-05-29 08:40:32 -06:00
blk-stat.c	blk-mq: include <linux/blk-mq.h> in block/blk-mq.h	2023-04-13 06:52:29 -06:00
blk-stat.h
blk-sysfs.c	blk-sysfs: add a new attr_group for blk_mq	2023-06-26 09:53:36 -06:00
blk-throttle.c	blk-throttle: Fix io statistics for cgroup v1	2023-06-25 08:00:39 -06:00
blk-throttle.h	blk-throttle: Fix io statistics for cgroup v1	2023-06-25 08:00:39 -06:00
blk-timeout.c
blk-wbt.c	Merge branch 'for-6.5/block-late' into block-6.5	2023-06-28 16:08:19 -06:00
blk-wbt.h	blk-wbt: don't create wbt sysfs entry if CONFIG_BLK_WBT is disabled	2023-06-26 09:53:36 -06:00
blk-zoned.c	block: replace fmode_t with a block-specific type for block open flags	2023-06-12 08:04:05 -06:00
blk.h	block: remove BIO_PAGE_REFFED	2023-06-16 10:08:09 -06:00
bounce.c
bsg-lib.c	scsi: replace the fmode_t argument to ->sg_io_fn with a simple bool	2023-06-12 08:04:04 -06:00
bsg.c	SCSI misc on 20230629	2023-06-30 11:57:07 -07:00
disk-events.c	block: increment diskseq on all media change events	2023-06-20 07:16:24 -06:00
early-lookup.c	block: don't return -EINVAL for not found names in devt_from_devname	2023-06-22 09:09:33 -06:00
elevator.c	block: Replace all non-returning strlcpy with strscpy	2023-06-01 09:13:31 -06:00
elevator.h	blk-mq: pass a flags argument to elevator_type->insert_requests	2023-04-13 06:52:30 -06:00
fops.c	block: don't make REQ_POLLED imply REQ_NOWAIT	2023-08-09 16:04:07 -06:00
genhd.c	block: fix the exclusive open mask in disk_scan_partitions	2023-06-21 07:37:52 -06:00
holder.c	block: don't allow a disk link holder to itself	2022-11-16 15:19:56 -07:00
ioctl.c	block: fine-granular CAP_SYS_ADMIN for Persistent Reservation	2023-06-20 12:49:23 -06:00
ioprio.c	scsi: block: Improve ioprio value validity checks	2023-06-16 12:04:30 -04:00
Kconfig	for-6.4/block-2023-04-21	2023-04-26 12:52:58 -07:00
Kconfig.iosched	block: Default to use cgroup support for BFQ	2023-01-30 09:42:42 -07:00
kyber-iosched.c	blk-mq: pass a flags argument to elevator_type->insert_requests	2023-04-13 06:52:30 -06:00
Makefile	block: move the code to do early boot lookup of block devices to block/	2023-06-05 10:57:40 -06:00
mq-deadline.c	block/mq-deadline: Fix a bug in deadline_from_pos()	2023-07-12 11:37:41 -06:00
opal_proto.h	sed-opal: allow user authority to get locking range attributes.	2023-04-05 07:46:25 -06:00
sed-opal.c	sed-opal: geometry feature reporting command	2023-04-19 14:07:13 -06:00
t10-pi.c