Paolo Valente 20bd723ec6 block: add missing group association in bio-cloning functions ... 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") Cc: stable@vger.kernel.org # v4.3+ 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>		2016-08-04 14:19:16 -06:00
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partitions	block: atari: Return early for unsupported sector size	2016-07-13 09:31:44 -07:00
badblocks.c	block, badblocks: introduce devm_init_badblocks	2016-01-09 08:39:04 -08:00
bio-integrity.c	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
bio.c	block: add missing group association in bio-cloning functions	2016-08-04 14:19:16 -06:00
blk-cgroup.c	block/blk-cgroup.c: Declare local symbols static	2016-06-14 09:09:33 -06:00
blk-core.c	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
blk-exec.c	block: Fix spelling in a source code comment	2016-07-20 21:28:22 -06:00
blk-flush.c	block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH	2016-06-07 13:41:38 -06:00
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-lib.c	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
blk-map.c	block: simplify and export blk_rq_append_bio	2016-07-20 17:38:32 -06:00
blk-merge.c	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
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 memoryless numa node encoded in hctx numa_node	2015-12-03 09:56:27 -07:00
blk-mq-sysfs.c	blk-mq: Use proper cpumask iterator	2016-03-20 09:34:02 -06:00
blk-mq-tag.c	blk-mq: Introduce blk_mq_reinit_tagset	2016-07-08 08:38:49 -06:00
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	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
blk-mq.h	blk-mq: dynamic h/w context count	2016-02-09 12:42:17 -07:00
blk-settings.c	block: kill off q->flush_flags	2016-04-13 13:33:19 -06:00
blk-softirq.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
blk-sysfs.c	block: expose QUEUE_FLAG_DAX in sysfs	2016-07-20 21:01:08 -06:00
blk-tag.c	block: support different tag allocation policy	2015-01-23 14:15:46 -07:00
blk-throttle.c	blkcg: kill unused field nr_undestroyed_grps	2016-08-04 14:19:16 -06:00
blk-timeout.c	block: remove REQ_NO_TIMEOUT flag	2015-12-22 09:38:34 -07:00
blk.h	block: simplify and export blk_rq_append_bio	2016-07-20 17:38:32 -06:00
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	block: do not merge requests without consulting with io scheduler	2016-07-20 21:35:12 -06:00
cmdline-parser.c	block: remove unrelated header files and export symbol	2014-01-21 20:18:26 -08:00
compat_ioctl.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
deadline-iosched.c	block: do not merge requests without consulting with io scheduler	2016-07-20 21:35:12 -06:00
elevator.c	block: do not merge requests without consulting with io scheduler	2016-07-20 21:35:12 -06:00
genhd.c	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
ioctl.c	DAX error handling for 4.7	2016-05-26 19:34:26 -07:00
ioprio.c	block: fix use-after-free in sys_ioprio_get()	2016-07-01 08:39:24 -06:00
Kconfig	block: remove BLK_DEV_DAX config option	2016-08-04 08:50:07 -04:00
Kconfig.iosched	blkcg: make CONFIG_BLK_CGROUP bool	2012-03-06 21:27:21 +01:00
Makefile	Initial roundup of 4.5 merge window patches	2016-01-23 18:45:06 -08:00
noop-iosched.c	elevator: use list_{first,prev,next}_entry	2015-11-16 15:21:48 -07:00
partition-generic.c	block/partition-generic.c: Remove a set-but-not-used variable	2016-06-14 09:09:15 -06:00
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