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linux/block
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Jens Axboe 9470e4a693 cfq-iosched: fix sysfs oops when attempting to read unconfigured weights 
If none of the devices in the system are using CFQ, then attempting to
read:

/sys/fs/cgroup/blkio/blkio.leaf_weight

will results in a NULL dereference. Check for a valid cfq_group_data
struct before attempting to dereference it.

Reported-by: Andrey Wagin <avagin@gmail.com>
Fixes: e48453c3 ("block, cgroup: implement policy-specific per-blkcg data")
Signed-off-by: Jens Axboe <axboe@fb.com>
 		2015-06-19 10:19:36 -06:00
..
partitions Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block 2015-02-12 14:13:23 -08:00
Kconfig
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Kconfig.iosched
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Makefile
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bio-integrity.c block: remove management of bi_remaining when restoring original bi_end_io 2015-05-22 08:58:55 -06:00
bio.c block: remove management of bi_remaining when restoring original bi_end_io 2015-05-22 08:58:55 -06:00
blk-cgroup.c block, cgroup: implement policy-specific per-blkcg data 2015-06-07 08:10:08 -06:00
blk-cgroup.h block, cgroup: implement policy-specific per-blkcg data 2015-06-07 08:10:08 -06:00
blk-core.c block, dm: don't copy bios for request clones 2015-05-22 08:58:57 -06:00
blk-exec.c block: move PM request support to IDE 2015-05-05 13:40:42 -06:00
blk-flush.c
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blk-integrity.c
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blk-ioc.c
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blk-iopoll.c
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blk-lib.c block: Quiesce zeroout wrapper 2015-02-05 10:14:54 -07:00
blk-map.c blk_rq_map_user(): use import_single_range() 2015-04-11 22:27:13 -04:00
blk-merge.c block: only honor SG gap prevention for merges that contain data 2015-05-29 13:10:23 -06:00
blk-mq-cpu.c
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blk-mq-cpumap.c
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blk-mq-sysfs.c blk-mq: add blk_mq_init_allocated_queue and export blk_mq_register_disk 2015-03-13 08:26:53 -06:00
blk-mq-tag.c blk-mq: Shared tag enhancements 2015-06-01 14:35:56 -06:00
blk-mq-tag.h blk-mq: Shared tag enhancements 2015-06-01 14:35:56 -06:00
blk-mq.c blk-mq: Shared tag enhancements 2015-06-01 14:35:56 -06:00
blk-mq.h blk-mq: release mq's kobjects in blk_release_queue() 2015-01-29 08:30:51 -08:00
blk-settings.c block: fix blk_stack_limits() regression due to lcm() change 2015-03-31 09:45:50 -06:00
blk-softirq.c
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blk-sysfs.c blk-mq: release mq's kobjects in blk_release_queue() 2015-01-29 08:30:51 -08:00
blk-tag.c block: support different tag allocation policy 2015-01-23 14:15:46 -07:00
blk-throttle.c blk-throttle: check stats_cpu before reading it from sysfs 2015-02-20 22:11:58 -08:00
blk-timeout.c blk-mq: Allow requests to never expire 2015-01-08 08:59:01 -07:00
blk.h blk-mq: make plug work for mutiple disks and queues 2015-05-08 14:17:23 -06:00
bounce.c block: remove BIO_EOPNOTSUPP 2015-05-19 09:17:03 -06:00
bsg-lib.c
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bsg.c block: Simplify bsg complete all 2015-02-04 09:57:52 -07:00
cfq-iosched.c cfq-iosched: fix sysfs oops when attempting to read unconfigured weights 2015-06-19 10:19:36 -06:00
cmdline-parser.c
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compat_ioctl.c
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deadline-iosched.c
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elevator.c cfq-iosched: fix the setting of IOPS mode on SSDs 2015-06-10 08:01:20 -06:00
genhd.c
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ioctl.c block: replace trylock with mutex_lock in blkdev_reread_part() 2015-05-20 09:05:45 -06:00
ioprio.c
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noop-iosched.c
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partition-generic.c
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scsi_ioctl.c sg_io(): use import_iovec() 2015-04-11 22:27:13 -04:00
t10-pi.c
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