Ming Lei 429120f3df block: fix splitting segments on boundary masks ... We ran into a problem with a mpt3sas based controller, where we would see random (and hard to reproduce) file corruption). The issue seemed specific to this controller, but wasn't specific to the file system. After a lot of debugging, we find out that it's caused by segments spanning a 4G memory boundary. This shouldn't happen, as the default setting for segment boundary masks is 4G. Turns out there are two issues in get_max_segment_size(): 1) The default segment boundary mask is bypassed 2) The segment start address isn't taken into account when checking segment boundary limit Fix these two issues by removing the bypass of the segment boundary check even if the mask is set to the default value, and taking into account the actual start address of the request when checking if a segment needs splitting. Cc: stable@vger.kernel.org # v5.1+ Reviewed-by: Chris Mason <clm@fb.com> Tested-by: Chris Mason <clm@fb.com> Fixes: dcebd75592 ("block: use bio_for_each_bvec() to compute multi-page bvec count") Signed-off-by: Ming Lei <ming.lei@redhat.com> Dropped const on the page pointer, ppc page_to_phys() doesn't mark the page as const... Signed-off-by: Jens Axboe <axboe@kernel.dk>		2019-12-30 08:51:18 -07:00
..
partitions	docs: admin-guide: add a series of orphaned documents	2019-07-15 11:03:02 -03:00
Kconfig	blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT	2019-11-07 12:28:13 -07:00
Kconfig.iosched	blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT	2019-11-07 12:28:13 -07:00
Makefile	blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT	2019-11-07 12:28:13 -07:00
badblocks.c	…
bfq-cgroup.c	bfq-iosched: Ensure bio->bi_blkg is valid before using it	2019-12-05 07:10:09 -07:00
bfq-iosched.c	for-5.5/block-20191121	2019-11-25 10:59:41 -08:00
bfq-iosched.h	block,bfq: Skip tracing hooks if possible	2019-11-20 16:10:29 -07:00
bfq-wf2q.c	bfq: Fix the missing barrier in __bfq_entity_update_weight_prio	2019-09-06 14:33:48 -06:00
bio-integrity.c	block: fix memleak of bio integrity data	2019-12-05 11:38:36 -07:00
bio.c	block: add bio_truncate to fix guard_bio_eod	2019-12-28 09:44:56 -07:00
blk-cgroup-rwstat.c	blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT	2019-11-07 12:28:13 -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	blk-cgroup: remove blkcg_drain_queue	2019-12-12 09:26:55 -07:00
blk-core.c	block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT	2019-12-17 09:01:43 -07:00
blk-exec.c	block: account statistics for passthrough requests	2019-10-10 17:52:31 -06:00
blk-flush.c	block: Fix a lockdep complaint triggered by request queue flushing	2019-12-20 11:52:01 -07:00
blk-integrity.c	block: centralize PI remapping logic to the block layer	2019-09-17 20:03:49 -06:00
blk-ioc.c	…
blk-iocost.c	iocost: over-budget forced IOs should schedule async delay	2019-12-16 16:10:17 -07:00
blk-iolatency.c	blkcg: s/RQ_QOS_CGROUP/RQ_QOS_LATENCY/	2019-08-28 21:17:08 -06:00
blk-lib.c	…
blk-map.c	block: fix memleak when __blk_rq_map_user_iov() is failed	2019-12-20 11:52:01 -07:00
blk-merge.c	block: fix splitting segments on boundary masks	2019-12-30 08:51:18 -07:00
blk-mq-cpumap.c	blk-mq: balance mapping between present CPUs and queues	2019-08-04 21:43:12 -06:00
blk-mq-debugfs-zoned.c	…
blk-mq-debugfs.c	for-5.3/block-20190708	2019-07-09 10:45:06 -07:00
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-mq: move lockdep_assert_held() into elevator_exit	2019-09-26 00:45:05 -06:00
blk-mq-sched.h	block: blk-mq: Remove blk_mq_sched_started_request and started_request	2019-07-23 07:25:09 -06:00
blk-mq-sysfs.c	blk-mq: make sure that line break can be printed	2019-11-04 07:14:10 -07:00
blk-mq-tag.c	blk-mq: Delete blk_mq_has_free_tags() and blk_mq_can_queue()	2019-11-13 12:50:38 -07:00
blk-mq-tag.h	blk-mq: Delete blk_mq_has_free_tags() and blk_mq_can_queue()	2019-11-13 12:50:38 -07:00
blk-mq-virtio.c	block: Fix blk_mq_*_map_queues() kernel-doc headers	2019-05-31 15:12:34 -06:00
blk-mq.c	blk-mq: Delete blk_mq_has_free_tags() and blk_mq_can_queue()	2019-11-13 12:50:38 -07:00
blk-mq.h	blk-mq: Inline status checkers	2019-10-07 08:31:59 -06:00
blk-pm.c	block: bypass blk_set_runtime_active for uninitialized q->dev	2019-09-12 07:11:56 -06:00
blk-pm.h	…
blk-rq-qos.c	blk-wbt: fix performance regression in wbt scale_up/scale_down	2019-10-06 09:26:41 -06:00
blk-rq-qos.h	blk-rq-qos: fix first node deletion of rq_qos_del()	2019-10-15 10:13:13 -06:00
blk-settings.c	dma-mapping updates for 5.4:	2019-09-19 13:27:23 -07:00
blk-softirq.c	block: Don't disable interrupts in trigger_softirq()	2019-11-18 07:29:22 -07:00
blk-stat.c	blk-stat: Optimise blk_stat_add()	2019-10-07 21:19:10 -06:00
blk-stat.h	…
blk-sysfs.c	block: Remove "dying" checks from sysfs callbacks	2019-10-07 08:31:59 -06:00
blk-throttle.c	blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT	2019-11-07 12:28:13 -07:00
blk-timeout.c	…
blk-wbt.c	blk-wbt: fix performance regression in wbt scale_up/scale_down	2019-10-06 09:26:41 -06:00
blk-wbt.h	block/rq_qos: implement rq_qos_ops->queue_depth_changed()	2019-08-28 21:17:07 -06:00
blk-zoned.c	block: set the zone size in blk_revalidate_disk_zones atomically	2019-12-03 10:18:22 -07:00
blk.h	block: Fix a lockdep complaint triggered by request queue flushing	2019-12-20 11:52:01 -07:00
bounce.c	…
bsg-lib.c	block: Fix the type of 'sts' in bsg_queue_rq()	2019-12-20 11:52:01 -07:00
bsg.c	…
cmdline-parser.c	…
compat_ioctl.c	compat_ioctl: block: handle Persistent Reservations	2019-12-21 07:26:56 -07:00
elevator.c	Merge branch 'for-linus' into for-5.5/block	2019-11-07 12:27:19 -07:00
genhd.c	block: add iostat counters for flush requests	2019-11-21 09:06:47 -07:00
ioctl.c	block: simplify blkdev_nr_zones	2019-12-03 08:51:24 -07:00
ioprio.c	docs: block: convert to ReST	2019-07-15 09:20:27 -03:00
kyber-iosched.c	blk-mq: remove blk_mq_put_ctx()	2019-07-02 21:03:27 -06:00
mq-deadline.c	block: Introduce elevator features	2019-09-05 19:52:33 -06:00
opal_proto.h	block: sed-opal: Introduce SUM_SET_LIST parameter and append it using 'add_token_u64'	2019-11-18 09:49:15 -07:00
partition-generic.c	for-5.5/disk-revalidate-20191122	2019-11-25 11:37:01 -08:00
scsi_ioctl.c	compat_ioctl: reimplement SG_IO handling	2019-10-23 17:23:46 +02:00
sed-opal.c	block: sed-opal: Introduce SUM_SET_LIST parameter and append it using 'add_token_u64'	2019-11-18 09:49:15 -07:00
t10-pi.c	block: Fix three kernel-doc warnings	2019-10-07 08:31:59 -06:00