Ming Lei 0738854939 blk-merge: fix blk_recount_segments ... QUEUE_FLAG_NO_SG_MERGE is set at default for blk-mq devices, so bio->bi_phys_segment computed may be bigger than queue_max_segments(q) for blk-mq devices, then drivers will fail to handle the case, for example, BUG_ON() in virtio_queue_rq() can be triggerd for virtio-blk: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1359146 This patch fixes the issue by ignoring the QUEUE_FLAG_NO_SG_MERGE flag if the computed bio->bi_phys_segment is bigger than queue_max_segments(q), and the regression is caused by commit 05f1dd53152173(block: add queue flag for disabling SG merging). Reported-by: Kick In <pierre-andre.morey@canonical.com> Tested-by: Chris J Arges <chris.j.arges@canonical.com> Signed-off-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2014-09-02 10:25:12 -06:00
..
partitions	partitions: aix.c: off by one bug	2014-08-05 13:13:24 -06:00
bio-integrity.c	block: Fix BUG_ON when pi errors occur	2014-08-21 20:37:47 -05:00
bio.c	block: use kmalloc alignment for bio slab	2014-08-01 12:30:34 -04:00
blk-cgroup.c	Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2014-08-04 10:11:28 -07:00
blk-cgroup.h	Revert "block: add __init to blkcg_policy_register"	2014-06-22 16:34:11 -06:00
blk-core.c	scsi-mq: fix requests that use a separate CDB buffer	2014-08-22 15:04:31 -05:00
blk-exec.c	block: blk-exec.c: Cleaning up local variable address returnd	2014-06-08 19:51:31 -06:00
blk-flush.c	block: remove elv_abort_queue and blk_abort_flushes	2014-06-11 15:31:21 -06:00
blk-integrity.c	bio-integrity: Convert to bvec_iter	2013-11-23 22:33:50 -08:00
blk-ioc.c	block: Substitute rcu_access_pointer() for rcu_dereference_raw()	2014-02-18 12:21:26 -08:00
blk-iopoll.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-03 12:57:53 -07:00
blk-lib.c	block/blk-lib.c: make __blkdev_issue_zeroout static	2014-05-26 17:39:09 -06:00
blk-map.c	block: remove struct request buffer member	2014-04-15 14:03:02 -06:00
blk-merge.c	blk-merge: fix blk_recount_segments	2014-09-02 10:25:12 -06:00
blk-mq-cpu.c	blk-mq: add file comments and update copyright notices	2014-05-28 10:15:41 -06:00
blk-mq-cpumap.c	blk-mq: add file comments and update copyright notices	2014-05-28 10:15:41 -06:00
blk-mq-sysfs.c	blk-mq: blk_mq_unregister_hctx() can be static	2014-05-30 10:31:13 -06:00
blk-mq-tag.c	blk-mq: bitmap tag: fix races in bt_get() function	2014-06-17 22:13:08 -07:00
blk-mq-tag.h	blk-mq: bitmap tag: fix races on shared ::wake_index fields	2014-06-17 22:12:35 -07:00
blk-mq.c	scsi-mq: fix requests that use a separate CDB buffer	2014-08-22 15:04:31 -05:00
blk-mq.h	blk-mq: decouble blk-mq freezing from generic bypassing	2014-07-01 10:31:13 -06:00
blk-settings.c	block: ensure that bio_add_page() always accepts a page for an empty bio	2014-06-10 12:53:56 -06:00
blk-softirq.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
blk-sysfs.c	block, blk-mq: draining can't be skipped even if bypass_depth was non-zero	2014-07-01 10:29:17 -06:00
blk-tag.c	block: don't assume last put of shared tags is for the host	2014-07-08 12:25:28 +02:00
blk-throttle.c	cgroup: remove sane_behavior support on non-default hierarchies	2014-07-09 10:08:08 -04:00
blk-timeout.c	block: ensure that the timer is always added	2014-05-30 15:41:39 -06:00
blk.h	block: remove elv_abort_queue and blk_abort_flushes	2014-06-11 15:31:21 -06:00
bounce.c	mm: convert some level-less printks to pr_*	2014-06-06 16:08:18 -07:00
bsg-lib.c
bsg.c	block: add blk_rq_set_block_pc()	2014-06-06 07:57:37 -06:00
cfq-iosched.c	cfq-iosched: Add comments on update timing of weight	2014-08-28 08:16:29 -06:00
cmdline-parser.c	block: remove unrelated header files and export symbol	2014-01-21 20:18:26 -08:00
compat_ioctl.c	Merge branch 'for-3.17/core' of git://git.kernel.dk/linux-block	2014-08-14 09:07:02 -06:00
deadline-iosched.c	block: Stop abusing csd.list for fifo_time	2014-02-24 14:46:32 -08:00
elevator.c	Revert "block: add __init to elv_register"	2014-06-22 16:34:11 -06:00
genhd.c	block: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)	2013-09-11 13:22:03 -06:00
ioctl.c	block: fix BLKSECTGET ioctl when max_sectors is greater than USHRT_MAX	2014-07-01 10:43:07 -06:00
ioprio.c	block: move ioprio.c from fs/ to block/	2014-05-19 11:02:18 -06:00
Kconfig	block: change config option name for cmdline partition parsing	2013-09-30 14:31:02 -07:00
Kconfig.iosched
Makefile	block: move mm/bounce.c to block/	2014-05-19 20:01:52 -06:00
noop-iosched.c
partition-generic.c
scsi_ioctl.c	block: fix error handling in sg_io	2014-08-26 08:20:01 -06:00