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Can Guo 36a7bd907c block: pm: Fix possible unbalanced nr_pending 
When someone calls blk_get_request() and blk_put_request()
without invoking blk_execute_rq() in between, nr_pending
will be unbalanced. Fix this by adding a flag, namely the
RQF_PM_ADDED, to track the usage of nr_pending, so that
blk_pm_put_request() won't touch nr_pending if the flag is
not set. Extra care should be given to blk_pm_requeue_request(),
because blk-flush.c inserts flush requests into queue without
calling blk_pm_add_request(), if the flush requests get requeued
by LLD, blk_pm_requeue_request() should anyways decrease
nr_pending in this situation to keep it balanced.

Change-Id: I7baa2049ac532e4fd22a0ce358133ba88266a314
Signed-off-by: Ziqi Chen <ziqichen@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
2021-09-15 09:44:27 +08:00
..
partitions partitions/aix: append null character to print data from disk 2018-07-27 09:17:41 -06:00
badblocks.c badblocks: fix wrong return value in badblocks_set if badblocks are disabled 2017-11-03 11:29:50 -07:00
bfq-cgroup.c block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group() 2020-03-25 08:06:08 +01:00
bfq-iosched.c block, bfq: fix use-after-free in bfq_idle_slice_timer_body 2020-04-17 10:48:42 +02:00
bfq-iosched.h block, bfq: inject other-queue I/O into seeky idle queues on NCQ flash 2019-11-20 18:46:44 +01:00
bfq-wf2q.c block, bfq: correctly charge and reset entity service in all cases 2018-11-13 11:08:28 -08:00
bio-crypt-ctx.c File and metadata encryption changes from android-4.19.96-107 2020-04-21 06:19:04 -07:00
bio-integrity.c block: release bip in a right way in error path 2020-07-16 08:17:23 +02:00
bio.c Revert existing FBE changes for ICE FBE 2020-04-24 15:19:09 -07:00
blk-cgroup.c blk-cgroup: Pre-allocate tree node on blkg_conf_prep 2020-11-10 12:35:59 +01:00
blk-core.c block: pm: Fix possible unbalanced nr_pending 2021-09-15 09:44:27 +08:00
blk-crypto-fallback.c ANDROID: block: require drivers to declare supported crypto key type(s) 2020-07-08 10:19:08 -07:00
blk-crypto-internal.h ANDROID: block: make blk_crypto_start_using_mode() properly check for support 2020-07-08 10:18:54 -07:00
blk-crypto.c ANDROID: block: backport the ability to specify max_dun_bytes 2020-07-19 14:32:24 +05:30
blk-exec.c blk-mq-sched: remove unused 'can_block' arg from blk_mq_sched_insert_request 2018-01-17 09:49:21 -07:00
blk-flush.c block: fix null pointer dereference in blk_mq_rq_timed_out() 2019-10-05 13:10:08 +02:00
blk-integrity.c block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
blk-ioc.c block: Fix use-after-free issue accessing struct io_cq 2020-04-17 10:48:41 +02:00
blk-iolatency.c This is the 4.19.73 stable release 2019-09-16 09:35:02 +02:00
blk-lib.c block: fix 32 bit overflow in __blkdev_issue_discard() 2020-02-01 09:37:12 +00:00
blk-map.c block: fix memleak when __blk_rq_map_user_iov() is failed 2020-01-12 12:17:22 +01:00
blk-merge.c Merge android-4.19.110 (1984fff) into msm-4.19 2020-05-23 05:08:22 -07:00
blk-mq-cpumap.c blk-mq: don't keep offline CPUs mapped to hctx 0 2018-04-10 08:38:46 -06:00
blk-mq-debugfs-zoned.c block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n 2018-07-09 09:07:52 -06:00
blk-mq-debugfs.c block, scsi: Change the preempt-only flag into a counter 2019-08-04 09:30:57 +02:00
blk-mq-debugfs.h block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n 2018-07-09 09:07:52 -06:00
blk-mq-pci.c blk-mq: code clean-up by adding an API to clear set->mq_map 2018-07-09 09:07:53 -06:00
blk-mq-rdma.c
blk-mq-sched.c blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART 2020-09-03 11:24:26 +02:00
blk-mq-sched.h block: mq-deadline: Fix write completion handling 2019-01-13 09:51:07 +01:00
blk-mq-sysfs.c blk-mq: make sure that line break can be printed 2019-12-17 20:35:48 +01:00
blk-mq-tag.c blk-mq: Allow blocking queue tag iter callbacks 2018-09-25 20:17:59 -06:00
blk-mq-tag.h Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
blk-mq-virtio.c ANDROID: modularize BLK_MQ_VIRTIO 2020-01-31 16:11:59 -08:00
blk-mq.c blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART 2020-09-03 11:24:26 +02:00
blk-mq.h blk-mq: free hw queue's resource in hctx's release handler 2019-09-16 08:22:13 +02:00
blk-rq-qos.c blk-wbt: fix performance regression in wbt scale_up/scale_down 2019-10-17 13:45:16 -07:00
blk-rq-qos.h blk-rq-qos: fix first node deletion of rq_qos_del() 2019-10-29 09:20:09 +01:00
blk-settings.c block: keep bdi->io_pages in sync with max_sectors_kb for stacked devices 2020-04-17 10:48:39 +02:00
blk-softirq.c block: fix timeout changes for legacy request drivers 2018-06-19 11:27:18 -06:00
blk-stat.c blk-stat: export helpers for modifying blk_rq_stat 2018-07-09 09:07:54 -06:00
blk-stat.h block: deactivate blk_stat timer in wbt_disable_default() 2019-01-13 09:51:06 +01:00
blk-sysfs.c block: call rq_qos_exit() after queue is frozen 2019-12-01 09:17:06 +01:00
blk-tag.c for-linus-20180616 2018-06-17 05:37:55 +09:00
blk-throttle.c blk-throttle: fix zero wait time for iops throttled group 2019-07-26 09:14:30 +02:00
blk-timeout.c blk-mq: Fix timeout handling in case the timeout handler returns BLK_EH_DONE 2018-06-23 10:25:45 -06:00
blk-wbt.c blk-wbt: fix performance regression in wbt scale_up/scale_down 2019-10-17 13:45:16 -07:00
blk-wbt.h block: remove external dependency on wbt_flags 2018-07-09 09:07:54 -06:00
blk-zoned.c block: Remove a superfluous cast from blkdev_report_zones() 2018-07-09 09:07:52 -06:00
blk.h Revert existing FBE changes for ICE FBE 2020-04-24 15:19:09 -07:00
bounce.c Revert existing FBE changes for ICE FBE 2020-04-24 15:19:09 -07:00
bsg-lib.c block/bsg-lib: use PTR_ERR_OR_ZERO to simplify the flow path 2018-08-01 09:13:03 -06:00
bsg.c block: bsg: move atomic_t ref_count variable to refcount API 2018-08-27 19:17:02 -06:00
cfq-iosched.c ANDROID: block/cfq-iosched: make group_idle per io cgroup tunable 2019-05-15 16:58:09 +08:00
cmdline-parser.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_ioctl.c compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE 2020-01-09 10:19:01 +01:00
deadline-iosched.c block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
elevator.c block: pm: Fix possible unbalanced nr_pending 2021-09-15 09:44:27 +08:00
genhd.c block: fix use-after-free on gendisk 2019-05-31 06:46:18 -07:00
ioctl.c block: pass inclusive 'lend' parameter to truncate_inode_pages_range 2018-02-23 15:20:19 -07:00
ioprio.c block: add ioprio_check_cap function 2018-05-31 10:50:54 -04:00
Kconfig File and metadata encryption changes from android-4.19.96-107 2020-04-21 06:19:04 -07:00
Kconfig.iosched License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
keyslot-manager.c ANDROID: block: backport the ability to specify max_dun_bytes 2020-07-19 14:32:24 +05:30
kyber-iosched.c block: kyber: make kyber more friendly with merging 2018-05-30 10:47:40 -06:00
Makefile File and metadata encryption changes from android-4.19.96-107 2020-04-21 06:19:04 -07:00
mq-deadline.c block: mq-deadline: Fix queue restart handling 2019-10-07 18:57:19 +02:00
noop-iosched.c
opal_proto.h
partition-generic.c block: fix use-after-free on gendisk 2019-05-31 06:46:18 -07:00
scsi_ioctl.c block: consistently use GFP_NOIO instead of __GFP_NORECLAIM 2018-05-14 08:55:18 -06:00
sed-opal.c block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR 2019-05-31 06:46:24 -07:00
t10-pi.c block: move dif_prepare/dif_complete functions to block layer 2018-07-30 08:27:02 -06:00