Angelo Ruocco
19e9da9e86
block, bfq: add weight symlink to the bfq.weight cgroup parameter
...
Many userspace tools and services use the proportional-share policy of
the blkio/io cgroups controller. The CFQ I/O scheduler implemented
this policy for the legacy block layer. To modify the weight of a
group in case CFQ was in charge, the 'weight' parameter of the group
must be modified. On the other hand, the BFQ I/O scheduler implements
the same policy in blk-mq, but, with BFQ, the parameter to modify has
a different name: bfq.weight (forced choice until legacy block was
present, because two different policies cannot share a common parameter
in cgroups).
Due to CFQ legacy, most if not all userspace configurations still use
the parameter 'weight', and for the moment do not seem likely to be
changed. But, when CFQ went away with legacy block, such a parameter
ceased to exist.
So, a simple workaround has been proposed [1] to make all
configurations work: add a symlink, named weight, to bfq.weight. This
commit adds such a symlink.
[1] https://lkml.org/lkml/2019/4/8/555
Suggested-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Angelo Ruocco <angeloruocco90@gmail.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-06-07 01:29:40 -06:00
..
partitions
block/partitions/ldm: Convert a kernel-doc header into a non-kernel-doc header
2019-05-31 15:12:34 -06:00
badblocks.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
bfq-cgroup.c
block, bfq: add weight symlink to the bfq.weight cgroup parameter
2019-06-07 01:29:40 -06:00
bfq-iosched.c
block: switch all files cleared marked as GPLv2 or later to SPDX tags
2019-04-30 16:11:59 -06:00
bfq-iosched.h
block: switch all files cleared marked as GPLv2 or later to SPDX tags
2019-04-30 16:11:59 -06:00
bfq-wf2q.c
block: switch all files cleared marked as GPLv2 or later to SPDX tags
2019-04-30 16:11:59 -06:00
bio-integrity.c
block/bio-integrity: use struct_size() in kmalloc()
2019-05-16 08:48:48 -06:00
bio.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
blk-cgroup.c
block: Drop unlikely before IS_ERR(_OR_NULL)
2019-06-05 08:22:24 -06:00
blk-core.c
block: free sched's request pool in blk_cleanup_queue
2019-06-06 22:39:39 -06:00
blk-exec.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-flush.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
blk-integrity.c
for-5.2/block-20190507
2019-05-07 18:14:36 -07:00
blk-ioc.c
block: remove the queue_lock indirection
2018-11-15 12:17:28 -07:00
blk-iolatency.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -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
blk-merge.c
block: remove the bi_seg_{front,back}_size fields in struct bio
2019-05-23 10:25:26 -06:00
blk-mq-cpumap.c
blk-mq: Document the blk_mq_hw_queue_to_node() arguments
2019-05-31 15:12:34 -06:00
blk-mq-debugfs-zoned.c
block: Cleanup license notice
2019-01-17 21:21:40 -07:00
blk-mq-debugfs.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
blk-mq-debugfs.h
blk-mq-debugfs: support rq_qos
2018-12-16 19:53:47 -07:00
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
block: free sched's request pool in blk_cleanup_queue
2019-06-06 22:39:39 -06:00
blk-mq-sched.h
block: free sched's request pool in blk_cleanup_queue
2019-06-06 22:39:39 -06:00
blk-mq-sysfs.c
for-5.2/block-20190507
2019-05-07 18:14:36 -07:00
blk-mq-tag.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-mq-tag.h
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: Fix memory leak in error handling
2019-05-29 14:33:04 -06:00
blk-mq.h
blk-mq: free hw queue's resource in hctx's release handler
2019-05-04 07:24:05 -06:00
blk-pm.c
block: remove the queue_lock indirection
2018-11-15 12:17:28 -07:00
blk-pm.h
block: remove the queue_lock indirection
2018-11-15 12:17:28 -07:00
blk-rq-qos.c
block: Fix rq_qos_wait() kernel-doc header
2019-05-31 15:12:34 -06:00
blk-rq-qos.h
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-settings.c
block: force an unlimited segment size on queues with a virt boundary
2019-05-23 10:25:26 -06:00
blk-softirq.c
block: remove a few unused exports
2018-11-15 12:13:25 -07:00
blk-stat.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -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: free sched's request pool in blk_cleanup_queue
2019-06-06 22:39:39 -06:00
blk-throttle.c
block: Fix throtl_pending_timer_fn() kernel-doc header
2019-05-31 15:12:34 -06:00
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
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-wbt.h
blk-zoned.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk.h
block: free sched's request pool in blk_cleanup_queue
2019-06-06 22:39:39 -06:00
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 bsg_setup_queue() kernel-doc header
2019-05-31 15:12:34 -06:00
bsg.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
cmdline-parser.c
compat_ioctl.c
elevator.c
block: free sched's request pool in blk_cleanup_queue
2019-06-06 22:39:39 -06:00
genhd.c
block: Convert blk_invalidate_devt() header into a non-kernel-doc header
2019-05-31 15:12:34 -06:00
ioctl.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
ioprio.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
Kconfig
block: remove CONFIG_LBDAF
2019-04-06 10:48:35 -06:00
Kconfig.iosched
block: remove legacy IO schedulers
2018-11-07 13:42:32 -07:00
kyber-iosched.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
Makefile
block: remove legacy IO schedulers
2018-11-07 13:42:32 -07:00
mq-deadline.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
opal_proto.h
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
partition-generic.c
block: fix use-after-free on gendisk
2019-04-22 09:48:12 -06:00
scsi_ioctl.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
sed-opal.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
t10-pi.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00