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4a2f704eb2
linux-next/block
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Ming Lei 4a2f704eb2 block: fix get_max_segment_size() overflow on 32bit arch 
Commit 429120f3df starts to take account of segment's start dma address
when computing max segment size, and data type of 'unsigned long'
is used to do that. However, the segment mask may be 0xffffffff, so
the figured out segment size may be overflowed in case of zero physical
address on 32bit arch.

Fix the issue by returning queue_max_segment_size() directly when that
happens.

Fixes: 429120f3df ("block: fix splitting segments on boundary masks")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: Christoph Hellwig <hch@lst.de>
Tested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-01-14 13:37:40 -07:00
..
partitions docs: admin-guide: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
badblocks.c block: switch all files cleared marked as GPLv2 to SPDX tags 2019-04-30 16:11:57 -06:00
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 fs: move guard_bio_eod() after bio_set_op_attrs 2020-01-09 08:16:12 -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 block: remove the queue_lock indirection 2018-11-15 12:17:28 -07:00
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 block: fix 32 bit overflow in __blkdev_issue_discard() 2018-11-14 08:17:18 -07:00
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 get_max_segment_size() overflow on 32bit arch 2020-01-14 13:37:40 -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 block: Cleanup license notice 2019-01-17 21:21:40 -07:00
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 block: remove the queue_lock indirection 2018-11-15 12:17:28 -07:00
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 block: deactivate blk_stat timer in wbt_disable_default() 2018-12-12 06:47:51 -07:00
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 block: add SPDX tags to block layer files missing licensing information 2019-04-30 16:12:03 -06:00
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 block: remove the i argument to bio_for_each_segment_all 2019-04-30 09:26:13 -06:00
bsg-lib.c block: Fix the type of 'sts' in bsg_queue_rq() 2019-12-20 11:52:01 -07:00
bsg.c block: switch all files cleared marked as GPLv2 to SPDX tags 2019-04-30 16:11:57 -06:00
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
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
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
kyber-iosched.c blk-mq: remove blk_mq_put_ctx() 2019-07-02 21:03:27 -06:00
Makefile blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT 2019-11-07 12:28:13 -07:00
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