OpenCloudOS-Kernel/block
Omar Sandoval c7e4145ae1 blk-mq-debugfs: error on long write to queue "state" file
blk_queue_flags_store() currently truncates and returns a short write if
the operation being written is too long. This can give us weird results,
like here:

$ echo "run            bar"
echo: write error: invalid argument
$ dmesg
[ 1103.075435] blk_queue_flags_store: unsupported operation bar. Use either 'run' or 'start'

Instead, return an error if the user does this. While we're here, make
the argument names consistent with everywhere else in this file.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-05-04 08:23:16 -06:00
..
partitions partitions/efi: Fix integer overflow in GPT size calculation 2017-01-17 09:02:31 -07:00
Kconfig blk-throttle: add configure option for new .low interface 2017-03-28 08:02:20 -06:00
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 badblocks: badblocks_set/clear update unacked_exist 2016-10-21 15:45:47 -06:00
bfq-cgroup.c block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
bfq-iosched.c block, bfq: don't dereference bic before null checking it 2017-04-20 08:19:23 -06:00
bfq-iosched.h bfq: fix compile error if CONFIG_CGROUPS=n 2017-04-20 09:39:12 -06:00
bfq-wf2q.c block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
bio-integrity.c block: remove bio_is_rw 2016-10-28 08:45:17 -06:00
bio.c block: trace completion of all bios. 2017-04-07 09:40:52 -06:00
blk-cgroup.c blkcg: allocate struct blkcg_gq outside request queue spinlock 2017-03-29 11:27:19 -06:00
blk-core.c blk-mq: unify hctx delay_work and run_work 2017-04-28 08:11:43 -06:00
blk-exec.c block: remove the errors field from struct request 2017-04-20 12:16:10 -06:00
blk-flush.c block: make __blk_end_bidi_request private 2017-04-19 10:19:47 -06:00
blk-integrity.c block: fix blk_integrity_register to use template's interval_exp if not 0 2017-04-23 12:59:56 -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: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
blk-map.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
blk-merge.c block: implement splitting of REQ_OP_WRITE_ZEROES bios 2017-04-08 11:25:38 -06:00
blk-mq-cpumap.c blk-mq: export blk_mq_map_queues 2016-11-08 17:30:00 -05:00
blk-mq-debugfs.c blk-mq-debugfs: error on long write to queue "state" file 2017-05-04 08:23:16 -06:00
blk-mq-pci.c blk-mq-pci: Fix two spelling mistakes 2017-03-29 11:09:51 -06:00
blk-mq-sched.c blk-mq-sched: remove hack that bypasses scheduler for reserved requests 2017-05-02 07:52:08 -06:00
blk-mq-sched.h blk-mq: Remove blk_mq_sched_move_to_dispatch() 2017-04-20 17:28:30 -06:00
blk-mq-sysfs.c blk-mq: Only unregister hctxs for which registration succeeded 2017-04-26 15:09:04 -06:00
blk-mq-tag.c blk-mq: add shallow depth option for blk_mq_get_tag() 2017-04-14 14:06:54 -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 block/mq: Cure cpu hotplug lock inversion 2017-05-04 07:57:13 -06:00
blk-mq.h blk-mq-debugfs: Rename functions for registering and unregistering the mq directory 2017-04-26 15:09:04 -06:00
blk-settings.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -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: kill blk_stat_rq_ddir() 2017-04-21 07:56:23 -06:00
blk-stat.h blk-stat: kill blk_stat_rq_ddir() 2017-04-21 07:56:23 -06:00
blk-sysfs.c blk-mq: Register <dev>/queue/mq after having registered <dev>/queue 2017-04-26 15:09:04 -06:00
blk-tag.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-throttle.c blk-throttle: fix unused variable warning with BLK_DEV_THROTTLING_LOW=n 2017-04-20 09:41:36 -06:00
blk-timeout.c block: remove the errors field from struct request 2017-04-20 12:16:10 -06:00
blk-wbt.c blk-stat: kill blk_stat_rq_ddir() 2017-04-21 07:56:23 -06:00
blk-wbt.h block: Make writeback throttling defaults consistent for SQ devices 2017-04-19 08:49:03 -06:00
blk-zoned.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
blk.h block: Export blk_init_request_from_bio() 2017-04-19 17:38:30 -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 scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -06:00
bsg.c scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -06:00
cfq-iosched.c cfq: Disable writeback throttling by default 2017-04-05 08:15:08 -06:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
deadline-iosched.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
elevator.c block: don't call blk_mq_quiesce_queue() after queue is frozen 2017-05-02 11:33:08 -06:00
genhd.c block: hide badblocks attribute by default 2017-04-28 08:26:42 -06:00
ioctl.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
ioprio.c block: Optimize ioprio_best() 2017-04-19 17:38:36 -06:00
kyber-iosched.c blk-stat: convert blk-stat bucket callback to signed 2017-04-20 15:29:16 -06:00
mq-deadline.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
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: get rid of blk_integrity_revalidate() 2017-04-21 14:17:27 -06:00
scsi_ioctl.c scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -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 block: constify struct blk_integrity_profile 2017-03-24 20:34:39 -06:00