Paolo Valente a02195ce86 block, bfq: remove direct switch to an entity in higher class ... If the function bfq_update_next_in_service is invoked as a consequence of the activation or requeueing of an entity, say E, and finds out that E belongs to a higher-priority class than that of the current next-in-service entity, then it sets next_in_service directly to E. But this may lead to anomalous schedules, because E may happen not be eligible for service, because its virtual start time is higher than the system virtual time for its service tree. This commit addresses this issue by simply removing this direct switch. Signed-off-by: Paolo Valente <paolo.valente@linaro.org> Tested-by: Lee Tibbert <lee.tibbert@gmail.com> Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2017-08-31 08:20:29 -06:00
..
partitions	partitions/ldm: switch to use uuid_t	2017-06-05 16:59:14 +02:00
Kconfig	Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm	2017-05-12 15:43:10 -07:00
Kconfig.iosched	block, bfq: add full hierarchical scheduling and cgroups support	2017-04-19 08:30:26 -06:00
Makefile	block, bfq: split bfq-iosched.c into multiple source files	2017-04-19 08:48:24 -06:00
badblocks.c	block: Add fallthrough markers to switch statements	2017-06-21 11:46:07 -06:00
bfq-cgroup.c	block, bfq: access and cache blkg data only when safe	2017-06-08 09:51:10 -06:00
bfq-iosched.c	block, bfq: make lookup_next_entity push up vtime on expirations	2017-08-31 08:20:28 -06:00
bfq-iosched.h	block, bfq: make lookup_next_entity push up vtime on expirations	2017-08-31 08:20:28 -06:00
bfq-wf2q.c	block, bfq: remove direct switch to an entity in higher class	2017-08-31 08:20:29 -06:00
bio-integrity.c	Linux 4.13-rc7	2017-08-28 13:00:44 -06:00
bio.c	block: replace bi_bdev with a gendisk pointer and partitions index	2017-08-23 12:49:55 -06:00
blk-cgroup.c	blkcg: avoid free blkcg_root when failed to alloc blkcg policy	2017-08-25 13:51:07 -06:00
blk-core.c	block: replace bi_bdev with a gendisk pointer and partitions index	2017-08-23 12:49:55 -06:00
blk-exec.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
blk-flush.c	block: update comments to reflect REQ_FLUSH -> REQ_PREFLUSH rename	2017-08-25 10:36:54 -06:00
blk-integrity.c	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
blk-ioc.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2017-03-03 10:53:35 -08:00
blk-lib.c	block: replace bi_bdev with a gendisk pointer and partitions index	2017-08-23 12:49:55 -06:00
blk-map.c	blk-map: call blk_queue_bounce from blk_rq_append_bio	2017-06-27 12:13:21 -06:00
blk-merge.c	block: replace bi_bdev with a gendisk pointer and partitions index	2017-08-23 12:49:55 -06:00
blk-mq-cpumap.c	blk-mq: map queues to all present CPUs	2017-07-24 10:01:31 -06:00
blk-mq-debugfs.c	Linux 4.13-rc7	2017-08-28 13:00:44 -06:00
blk-mq-debugfs.h	mq-deadline: add debugfs attributes	2017-05-04 08:25:17 -06:00
blk-mq-pci.c	blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL	2017-08-18 08:08:14 -06:00
blk-mq-sched.c	blk-mq-sched: fix performance regression of mq-deadline	2017-07-03 16:54:09 -06:00
blk-mq-sched.h	Merge commit '8e8320c9315c' into for-4.13/block	2017-06-22 21:55:24 -06:00
blk-mq-sysfs.c	blk-mq: untangle debugfs and sysfs	2017-05-04 08:24:13 -06:00
blk-mq-tag.c	blk-mq: Make blk_mq_reinit_tagset() calls easier to read	2017-08-18 08:36:58 -06:00
blk-mq-tag.h	blk-mq-sched: Allocate sched reserved tags as specified in the original queue tagset	2017-03-02 08:56:04 -07:00
blk-mq-virtio.c	blk-mq: provide a default queue mapping for virtio device	2017-02-27 20:54:05 +02:00
blk-mq.c	Linux 4.13-rc7	2017-08-28 13:00:44 -06:00
blk-mq.h	blk-mq: provide internal in-flight variant	2017-08-09 13:09:28 -06:00
blk-settings.c	block: Warn if blk_queue_rq_timed_out() is called for a blk-mq queue	2017-08-23 12:02:30 -06:00
blk-softirq.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/topology.h>	2017-03-02 08:42:26 +01:00
blk-stat.c	blk-stat: don't use this_cpu_ptr() in a preemptable section	2017-05-10 07:40:18 -06:00
blk-stat.h	blk-stat: kill blk_stat_rq_ddir()	2017-04-21 07:56:23 -06:00
blk-sysfs.c	block: fix warning when I/O elevator is changed as request_queue is being removed	2017-08-28 10:52:44 -06:00
blk-tag.c	block: Unexport blk_queue_end_tag()	2017-08-18 08:36:58 -06:00
blk-throttle.c	Linux 4.13-rc7	2017-08-28 13:00:44 -06:00
blk-timeout.c	block: Check locking assumptions at runtime	2017-06-20 19:27:14 -06:00
blk-wbt.c	sched/wait: Disambiguate wq_entry->task_list and wq_head->task_list naming	2017-06-20 12:19:14 +02:00
blk-wbt.h	block: Make writeback throttling defaults consistent for SQ devices	2017-04-19 08:49:03 -06:00
blk-zoned.c	block: replace bi_bdev with a gendisk pointer and partitions index	2017-08-23 12:49:55 -06:00
blk.h	block: add a __disk_get_part helper	2017-08-23 12:49:52 -06:00
bounce.c	block: remove the queue_bounce_pfn helper	2017-06-27 12:13:45 -06:00
bsg-lib.c	bsg-lib: fix kernel panic resulting from missing allocation of reply-buffer	2017-08-24 08:22:10 -06:00
bsg.c	block: Make most scsi_req_init() calls implicit	2017-06-20 19:27:14 -06:00
cfq-iosched.c	block, scheduler: convert xxx_var_store to void	2017-08-28 10:01:08 -06:00
cmdline-parser.c	block: remove unrelated header files and export symbol	2014-01-21 20:18:26 -08:00
compat_ioctl.c	compat_hdio_ioctl: Fix a declaration	2017-08-24 08:40:17 -06:00
deadline-iosched.c	block, scheduler: convert xxx_var_store to void	2017-08-28 10:01:08 -06:00
elevator.c	block: fix warning when I/O elevator is changed as request_queue is being removed	2017-08-28 10:52:44 -06:00
genhd.c	block: add a __disk_get_part helper	2017-08-23 12:49:52 -06:00
ioctl.c	block: remove the discard_zeroes_data flag	2017-04-08 11:25:38 -06:00
ioprio.c	block: Add fallthrough markers to switch statements	2017-06-21 11:46:07 -06:00
kyber-iosched.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-07-03 13:08:04 -07:00
mq-deadline.c	block, scheduler: convert xxx_var_store to void	2017-08-28 10:01:08 -06:00
noop-iosched.c	block: move existing elevator ops to union	2017-01-17 10:03:33 -07:00
opal_proto.h	block/sed-opal: allocate struct opal_dev dynamically	2017-02-17 12:41:47 -07:00
partition-generic.c	block: remove blk_free_devt in add_partition	2017-08-24 08:26:57 -06:00
scsi_ioctl.c	block: Change argument type of scsi_req_init()	2017-06-20 19:27:14 -06:00
sed-opal.c	block: sed-opal: Tone down all the pr_* to debugs	2017-04-07 14:24:16 -06:00
t10-pi.c	t10-pi: Move opencoded contants to common header	2017-07-03 16:56:25 -06:00