android_kernel_oneplus_msm8998/block
Bart Van Assche 30e81e7fe1 block: Relax a check in blk_start_queue()
commit 4ddd56b003f251091a67c15ae3fe4a5c5c5e390a upstream.

Calling blk_start_queue() from interrupt context with the queue
lock held and without disabling IRQs, as the skd driver does, is
safe. This patch avoids that loading the skd driver triggers the
following warning:

WARNING: CPU: 11 PID: 1348 at block/blk-core.c:283 blk_start_queue+0x84/0xa0
RIP: 0010:blk_start_queue+0x84/0xa0
Call Trace:
 skd_unquiesce_dev+0x12a/0x1d0 [skd]
 skd_complete_internal+0x1e7/0x5a0 [skd]
 skd_complete_other+0xc2/0xd0 [skd]
 skd_isr_completion_posted.isra.30+0x2a5/0x470 [skd]
 skd_isr+0x14f/0x180 [skd]
 irq_forced_thread_fn+0x2a/0x70
 irq_thread+0x144/0x1a0
 kthread+0x125/0x140
 ret_from_fork+0x2a/0x40

Fixes: commit a038e25364 ("[PATCH] blk_start_queue() must be called with irq disabled - add warning")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-27 11:00:14 +02:00
..
partitions partitions/msdos: FreeBSD UFS2 file systems are not recognized 2017-06-17 06:39:34 +02:00
bio-integrity.c block: blk_flush_integrity() for bio-based drivers 2015-10-21 14:43:44 -06:00
bio.c blk: Ensure users for current->bio_list can see the full list. 2017-04-08 09:53:32 +02:00
blk-cgroup.c block: fix module reference leak on put_disk() call for cgroups throttle 2017-07-05 14:37:16 +02:00
blk-core.c block: Relax a check in blk_start_queue() 2017-09-27 11:00:14 +02:00
blk-exec.c block: move PM request support to IDE 2015-05-05 13:40:42 -06:00
blk-flush.c Revert "blk-flush: Queue through IO scheduler when flush not required" 2015-11-25 10:12:54 -07:00
blk-integrity.c block: fix blk_integrity_register to use template's interval_exp if not 0 2017-05-20 14:27:00 +02:00
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-iopoll.c Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next 2014-06-03 12:57:53 -07:00
blk-lib.c block: re-add discard_granularity and alignment checks 2015-10-28 09:12:58 +09:00
blk-map.c Don't feed anything but regular iovec's to blk_rq_map_user_iov 2016-12-10 19:07:26 +01:00
blk-merge.c block: make sure a big bio is split into at most 256 bvecs 2016-09-15 08:27:51 +02:00
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 inserting requests before establishing new mapping 2015-09-29 11:32:50 -06:00
blk-mq-sysfs.c block: add block polling support 2015-11-07 10:40:47 -07:00
blk-mq-tag.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-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 blk-mq: Avoid memory reclaim when remapping queues 2017-04-18 07:14:37 +02:00
blk-mq.h blk-mq: mark __blk_mq_complete_request() static 2015-11-11 09:36:56 -07:00
blk-settings.c block: Initialize max_dev_sectors to 0 2016-03-09 15:34:49 -08:00
blk-softirq.c block: fix regression with block enabled tagging 2014-04-09 21:54:06 -06:00
blk-sysfs.c Merge branch 'mkp-fixes' into fixes 2015-12-03 09:32:33 -08:00
blk-tag.c block: support different tag allocation policy 2015-01-23 14:15:46 -07:00
blk-throttle.c cgroup: replace cgroup_on_dfl() tests in controllers with cgroup_subsys_on_dfl() 2015-09-18 11:56:28 -04:00
blk-timeout.c block: fix blk_abort_request for blk-mq drivers 2015-11-24 15:24:10 -07:00
blk.h block: protect rw_page against device teardown 2015-11-19 13:47:10 -08:00
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 sg_write()/bsg_write() is not fit to be called under KERNEL_DS 2017-01-09 08:07:53 +01:00
cfq-iosched.c block: cfq_cpd_alloc() should use @gfp 2017-01-19 20:17:22 +01:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c block, bdi: an active gendisk always has a request_queue associated with it 2014-09-08 10:00:35 -06:00
deadline-iosched.c block: Stop abusing csd.list for fifo_time 2014-02-24 14:46:32 -08:00
elevator.c block: check bio_mergeable() early before merging 2015-10-21 15:00:54 -06:00
genhd.c block: fix del_gendisk() vs blkdev_ioctl crash 2017-04-27 09:09:34 +02:00
ioctl.c block: add an API for Persistent Reservations 2015-10-21 14:46:56 -06:00
ioprio.c block: fix use-after-free in sys_ioprio_get() 2016-08-10 11:49:28 +02:00
Kconfig block: Add T10 Protection Information functions 2014-09-27 09:14:59 -06:00
Kconfig.iosched blkcg: make CONFIG_BLK_CGROUP bool 2012-03-06 21:27:21 +01:00
Makefile block: Add T10 Protection Information functions 2014-09-27 09:14:59 -06:00
noop-iosched.c elevator: use list_{first,prev,next}_entry 2015-11-16 15:21:48 -07:00
partition-generic.c block: get rid of blk_integrity_revalidate() 2017-05-14 13:32:59 +02:00
scsi_ioctl.c block: allow WRITE_SAME commands with the SG_IO ioctl 2017-03-30 09:35:20 +02:00
t10-pi.c block: Consolidate static integrity profile properties 2015-10-21 14:42:38 -06:00