Paolo Valente 01daea925d block: add missing group association in bio-cloning functions ... commit 20bd723ec6 upstream. When a bio is cloned, the newly created bio must be associated with the same blkcg as the original bio (if BLK_CGROUP is enabled). If this operation is not performed, then the new bio is not associated with any group, and the group of the current task is returned when the group of the bio is requested. Depending on the cloning frequency, this may cause a large percentage of the bios belonging to a given group to be treated as if belonging to other groups (in most cases as if belonging to the root group). The expected group isolation may thereby be broken. This commit adds the missing association in bio-cloning functions. Fixes: da2f0f74cf ("Btrfs: add support for blkio controllers") Signed-off-by: Paolo Valente <paolo.valente@linaro.org> Reviewed-by: Nikolay Borisov <kernel@kyup.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@fb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-08-20 18:09:24 +02:00
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partitions	mac: validate mac_partition is within sector	2015-11-20 08:49:28 -07:00
bio-integrity.c	block: blk_flush_integrity() for bio-based drivers	2015-10-21 14:43:44 -06:00
bio.c	block: add missing group association in bio-cloning functions	2016-08-20 18:09:24 +02:00
blk-cgroup.c	cgroup: fix handling of multi-destination migration from subtree_control enabling	2015-12-03 10:18:21 -05:00
blk-core.c	dm: fix excessive dm-mq context switching	2016-04-12 09:08:40 -07:00
blk-exec.c	block: move PM request support to IDE	2015-05-05 13:40:42 -06:00
blk-flush.c	Revert "blk-flush: Queue through IO scheduler when flush not required"	2015-11-25 10:12:54 -07:00
blk-integrity.c	block, libnvdimm, nvme: provide a built-in blk_integrity nop profile	2015-10-21 14:43:45 -06:00
blk-ioc.c	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -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: re-add discard_granularity and alignment checks	2015-10-28 09:12:58 +09:00
blk-map.c	block: Copy a user iovec if it includes gaps	2015-09-11 09:03:50 -06:00
blk-merge.c	block: fix bio splitting on max sectors	2016-02-17 12:30:56 -08:00
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: avoid inserting requests before establishing new mapping	2015-09-29 11:32:50 -06:00
blk-mq-sysfs.c	block: add block polling support	2015-11-07 10:40:47 -07:00
blk-mq-tag.c	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
blk-mq-tag.h	blk-mq: factor out a helper to iterate all tags for a request_queue	2015-10-01 10:10:57 +02:00
blk-mq.c	blk-mq: fix calling unplug callbacks with preempt disabled	2015-11-20 20:29:45 -07:00
blk-mq.h	blk-mq: mark __blk_mq_complete_request() static	2015-11-11 09:36:56 -07:00
blk-settings.c	block: Initialize max_dev_sectors to 0	2016-03-09 15:34:49 -08:00
blk-softirq.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
blk-sysfs.c	Merge branch 'mkp-fixes' into fixes	2015-12-03 09:32:33 -08:00
blk-tag.c	block: support different tag allocation policy	2015-01-23 14:15:46 -07:00
blk-throttle.c	cgroup: replace cgroup_on_dfl() tests in controllers with cgroup_subsys_on_dfl()	2015-09-18 11:56:28 -04:00
blk-timeout.c	block: fix blk_abort_request for blk-mq drivers	2015-11-24 15:24:10 -07:00
blk.h	block: protect rw_page against device teardown	2015-11-19 13:47:10 -08:00
bounce.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2015-09-19 18:57:09 -07:00
bsg-lib.c	bsg: Remove unused function bsg_goose_queue()	2012-12-06 14:33:02 +01:00
bsg.c	block: Simplify bsg complete all	2015-02-04 09:57:52 -07:00
cfq-iosched.c	cgroup: replace cgroup_on_dfl() tests in controllers with cgroup_subsys_on_dfl()	2015-09-18 11:56:28 -04:00
cmdline-parser.c	block: remove unrelated header files and export symbol	2014-01-21 20:18:26 -08:00
compat_ioctl.c	block, bdi: an active gendisk always has a request_queue associated with it	2014-09-08 10:00:35 -06:00
deadline-iosched.c	block: Stop abusing csd.list for fifo_time	2014-02-24 14:46:32 -08:00
elevator.c	block: check bio_mergeable() early before merging	2015-10-21 15:00:54 -06:00
genhd.c	block: fix use-after-free in seq file	2016-08-16 09:30:50 +02:00
ioctl.c	block: add an API for Persistent Reservations	2015-10-21 14:46:56 -06:00
ioprio.c	block: fix use-after-free in sys_ioprio_get()	2016-08-10 11:49:28 +02:00
Kconfig	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
Kconfig.iosched	blkcg: make CONFIG_BLK_CGROUP bool	2012-03-06 21:27:21 +01:00
Makefile	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
noop-iosched.c	elevator: use list_{first,prev,next}_entry	2015-11-16 15:21:48 -07:00
partition-generic.c	block: partition: initialize percpuref before sending out KOBJ_ADD	2016-05-04 14:48:39 -07:00
scsi_ioctl.c	mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM	2015-11-06 17:50:42 -08:00
t10-pi.c	block: Consolidate static integrity profile properties	2015-10-21 14:42:38 -06:00