Ming Lei 2705dfb209 block: fix discard request merge ... ll_new_hw_segment() is reached only in case of single range discard merge, and we don't have max discard segment size limit actually, so it is wrong to run the following check: if (req->nr_phys_segments + nr_phys_segs > blk_rq_get_max_segments(req)) it may be always false since req->nr_phys_segments is initialized as one, and bio's segment count is still 1, blk_rq_get_max_segments(reg) is 1 too. Fix the issue by not doing the check and bypassing the calculation of discard request's nr_phys_segments. Based on analysis from Wang Shanker. Cc: Christoph Hellwig <hch@lst.de> Reported-by: Wang Shanker <shankerwangmiao@gmail.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20210628023312.1903255-1-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2021-06-29 07:41:08 -06:00
..
partitions	block: pass a gendisk to bdev_disk_changed	2021-06-24 12:01:06 -06:00
badblocks.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
bfq-cgroup.c	block, bfq: merge bursts of newly-created queues	2021-03-25 10:50:07 -06:00
bfq-iosched.c	blk: Fix lock inversion between ioc lock and bfqd lock	2021-06-24 18:43:55 -06:00
bfq-iosched.h	block, bfq: merge bursts of newly-created queues	2021-03-25 10:50:07 -06:00
bfq-wf2q.c	block, bfq: always inject I/O of queues blocked by wakers	2021-03-25 10:50:07 -06:00
bio-integrity.c	block: remove BLK_BOUNCE_ISA support	2021-04-06 09:28:17 -06:00
bio.c	block: fix trace completion for chained bio	2021-06-24 09:53:50 -06:00
blk-cgroup-rwstat.c	blk-cgroup: Fix the recursive blkg rwstat	2021-03-05 11:32:15 -07:00
blk-cgroup-rwstat.h	blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT	2019-11-07 12:28:13 -07:00
blk-cgroup.c	block: Introduce the ioprio rq-qos policy	2021-06-21 15:03:40 -06:00
blk-core.c	block: Update blk_update_request() documentation	2021-06-03 14:37:24 -06:00
blk-crypto-fallback.c	block: rename BIO_MAX_PAGES to BIO_MAX_VECS	2021-03-11 07:47:48 -07:00
blk-crypto-internal.h	block: make blk_crypto_rq_bio_prep() able to fail	2020-10-05 10:47:43 -06:00
blk-crypto.c	dm: support key eviction from keyslot managers of underlying devices	2021-02-11 09:45:25 -05:00
blk-exec.c	block: drop removed argument from kernel-doc of blk_execute_rq()	2021-01-29 07:43:29 -07:00
blk-flush.c	block: avoid double io accounting for flush request	2021-05-24 06:47:21 -06:00
blk-integrity.c	block: remove the unused blk_integrity_merge_bio export	2020-10-06 07:29:53 -06:00
blk-ioc.c	block: remove retry loop in ioc_release_fn()	2020-07-16 10:22:15 -06:00
blk-iocost.c	blk-iocost: fix weight updates of inner active iocgs	2021-05-11 20:50:35 -06:00
blk-iolatency.c	block: Remove redundant 'return' statement	2020-10-08 07:59:48 -06:00
blk-ioprio.c	block: Introduce the ioprio rq-qos policy	2021-06-21 15:03:40 -06:00
blk-ioprio.h	block: Introduce the ioprio rq-qos policy	2021-06-21 15:03:40 -06:00
blk-lib.c	block: rename BIO_MAX_PAGES to BIO_MAX_VECS	2021-03-11 07:47:48 -07:00
blk-map.c	block: remove an incorrect check from blk_rq_append_bio	2021-04-12 06:45:12 -06:00
blk-merge.c	block: fix discard request merge	2021-06-29 07:41:08 -06:00
blk-mq-cpumap.c	blk-mq: remove the calling of local_memory_node()	2020-10-20 07:08:17 -06:00
blk-mq-debugfs-zoned.c	block: Cleanup license notice	2019-01-17 21:21:40 -07:00
blk-mq-debugfs.c	block: Introduce the ioprio rq-qos policy	2021-06-21 15:03:40 -06:00
blk-mq-debugfs.h	blk-mq: no need to check return value of debugfs_create functions	2019-06-13 03:00:30 -06:00
blk-mq-pci.c	block: Fix blk_mq_*_map_queues() kernel-doc headers	2019-05-31 15:12:34 -06:00
blk-mq-rdma.c	block: Fix blk_mq_*_map_queues() kernel-doc headers	2019-05-31 15:12:34 -06:00
blk-mq-sched.c	blk: Fix lock inversion between ioc lock and bfqd lock	2021-06-24 18:43:55 -06:00
blk-mq-sched.h	blk: Fix lock inversion between ioc lock and bfqd lock	2021-06-24 18:43:55 -06:00
blk-mq-sysfs.c	blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue	2020-10-09 12:46:28 -06:00
blk-mq-tag.c	blk-mq: Use request queue-wide tags for tagset-wide sbitmap	2021-05-24 06:47:22 -06:00
blk-mq-tag.h	blk-mq: Some tag allocation code refactoring	2021-05-24 06:47:22 -06:00
blk-mq-virtio.c	blk-mq: Fix typo in comment	2020-03-17 20:55:21 +01:00
blk-mq.c	blk-mq: update hctx->dispatch_busy in case of real scheduler	2021-06-25 09:50:31 -06:00
blk-mq.h	blk: Fix lock inversion between ioc lock and bfqd lock	2021-06-24 18:43:55 -06:00
blk-pm.c	scsi: block: Fix a race in the runtime power management code	2020-12-09 11:41:41 -05:00
blk-pm.h	block: Remove unused blk_pm_*() function definitions	2021-02-22 06:33:48 -07:00
blk-rq-qos.c	rq-qos: fix missed wake-ups in rq_qos_throttle try two	2021-06-08 15:12:57 -06:00
blk-rq-qos.h	block: Introduce the ioprio rq-qos policy	2021-06-21 15:03:40 -06:00
blk-settings.c	block-5.13-2021-05-09	2021-05-09 13:25:14 -07:00
blk-stat.c	blk-stat: make q->stats->lock irqsafe	2020-09-01 16:48:46 -06:00
blk-stat.h	block: deactivate blk_stat timer in wbt_disable_default()	2018-12-12 06:47:51 -07:00
blk-sysfs.c	block: mark queue init done at the end of blk_register_queue	2021-06-16 08:41:50 -06:00
blk-throttle.c	block: store a block_device pointer in struct bio	2021-01-24 18:17:20 -07:00
blk-timeout.c	block: blk-timeout: delete duplicated word	2020-07-31 16:29:47 -06:00
blk-wbt.c	blk-wbt: make sure throttle is enabled properly	2021-06-21 15:03:41 -06:00
blk-wbt.h	blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()	2021-06-21 15:03:41 -06:00
blk-zoned.c	blk-zoned: Remove the definition of blk_zone_start()	2021-04-07 14:31:45 -06:00
blk.h	blk: Fix lock inversion between ioc lock and bfqd lock	2021-06-24 18:43:55 -06:00
bounce.c	block: stop calling blk_queue_bounce for passthrough requests	2021-04-06 09:28:18 -06:00
bsg-lib.c	block: drop double zeroing	2020-09-23 09:18:13 -06:00
bsg.c	block: remove unnecessary argument from blk_execute_rq	2021-01-24 21:52:39 -07:00
cmdline-parser.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
disk-events.c	block: add the events* attributes to disk_attrs	2021-06-24 12:00:22 -06:00
elevator.c	blk: Fix lock inversion between ioc lock and bfqd lock	2021-06-24 18:43:55 -06:00
genhd.c	block: add the events* attributes to disk_attrs	2021-06-24 12:00:22 -06:00
ioctl.c	block: move bd_part_count to struct gendisk	2021-06-01 07:45:27 -06:00
ioprio.c	block: Fix sys_ioprio_set(.which=IOPRIO_WHO_PGRP) task iteration	2021-04-08 13:43:53 -06:00
Kconfig	block: Introduce the ioprio rq-qos policy	2021-06-21 15:03:40 -06:00
Kconfig.iosched	block/mq-deadline: Add cgroup support	2021-06-21 15:03:41 -06:00
keyslot-manager.c	- Fix DM integrity's HMAC support to provide enhanced security of	2021-02-22 10:22:54 -08:00
kyber-iosched.c	kyber: fix out of bounds access when preempted	2021-05-11 08:12:14 -06:00
Makefile	block: move the disk events code to a separate file	2021-06-24 12:00:22 -06:00
mq-deadline-cgroup.c	block/mq-deadline: Add cgroup support	2021-06-21 15:03:41 -06:00
mq-deadline-cgroup.h	block/mq-deadline: Add cgroup support	2021-06-21 15:03:41 -06:00
mq-deadline-main.c	block/mq-deadline: Remove a WARN_ON_ONCE() call	2021-06-27 16:25:10 -06:00
opal_proto.h	block: sed-opal: Change the check condition for regular session validity	2020-03-12 08:00:10 -06:00
scsi_ioctl.c	block: Remove an obsolete comment from sg_io()	2021-04-13 11:23:52 -06:00
sed-opal.c	block: sed-opal: Change the check condition for regular session validity	2020-03-12 08:00:10 -06:00
t10-pi.c	block: Allow t10-pi to be modular	2020-01-06 20:59:04 -07:00