Ming Lei
db5e1fbf5e
BACKPORT: blk-mq: fix is_flush_rq ...
is_flush_rq() is called from bt_iter()/bt_tags_iter(), and runs the
following check:
hctx->fq->flush_rq == req
but the passed hctx from bt_iter()/bt_tags_iter() may be NULL because:
1) memory re-order in blk_mq_rq_ctx_init():
rq->mq_hctx = data->hctx;
...
refcount_set(&rq->ref, 1);
OR
2) tag re-use and ->rqs[] isn't updated with new request.
Fix the issue by re-writing is_flush_rq() as:
return rq->end_io == flush_end_io;
which turns out simpler to follow and immune to data race since we have
ordered WRITE rq->end_io and refcount_set(&rq->ref, 1).
Fixes: 2e315dc07df0 ("blk-mq: grab rq->refcount before calling ->fn in
blk_mq_tagset_busy_iter")
Cc: "Blank-Burian, Markus, Dr." <blankburian@uni-muenster.de>
Cc: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>.
Bug: 197804811
Change-Id: I4c19fc2c7d39235b0e95a622f26646a353a19ee9
[Upstream: cherry picked from commit a9ed27a764156929efe714033edb3e9023c5f321]
[Pradeep: Resolved conflicts in block/blk.h]
Signed-off-by: Pradeep P V K <pragalla@codeaurora.org>
Git-commit: ec1b6ab9fehttps://android.googlesource.com/kernel/common/
Signed-off-by: Pradeep P V K <pragalla@codeaurora.org>
2021-09-03 05:21:21 -07:00
bfq: fix blkio cgroup leakage v4
2020-09-03 11:26:54 +02:00
block: only call sched requeue_request() for scheduled requests
2020-09-23 12:40:37 +02:00
bfq: fix blkio cgroup leakage v4
2020-09-03 11:26:54 +02:00
bfq: fix blkio cgroup leakage v4
2020-09-03 11:26:54 +02:00
ANDROID: dm: add dm-default-key target for metadata encryption
2020-01-24 10:52:54 -08:00
block: release bip in a right way in error path
2020-07-16 08:16:36 +02:00
Merge android11-5.4.86+ ( 75c93eb) into msm-5.4
2021-04-22 09:44:51 +05:30
blk-cgroup: Pre-allocate tree node on blkg_conf_prep
2020-11-10 12:37:30 +01:00
This is the 5.4.73 stable release
2020-10-29 11:38:08 +01:00
ANDROID: block: require drivers to declare supported crypto key type(s)
2020-04-07 17:58:49 +00:00
ANDROID: block: make blk_crypto_start_using_mode() properly check for support
2020-04-07 17:58:39 +00:00
ANDROID: block: backport the ability to specify max_dun_bytes
2020-05-15 22:01:33 +00:00
BACKPORT: blk-mq: fix is_flush_rq
2021-09-03 05:21:21 -07:00
block: Fix use-after-free issue accessing struct io_cq
2020-04-17 10:50:04 +02:00
blk-iocost: ioc_pd_free() shouldn't assume irq disabled
2020-09-09 19:12:35 +02:00
block: fix memleak when __blk_rq_map_user_iov() is failed
2020-01-12 12:21:43 +01:00
block: fix get_max_io_size()
2020-09-28 02:54:35 -07:00
blk-mq-debugfs: update blk_queue_flag_name[] accordingly for new flags
2020-07-22 09:32:52 +02:00
blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART
2020-09-03 11:27:01 +02:00
block: only call sched requeue_request() for scheduled requests
2020-09-23 12:40:37 +02:00
blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
2020-10-29 09:57:34 +01:00
BACKPORT: blk-mq: clear stale request in tags->rq[] before freeing one request pool
2021-09-03 05:19:17 -07:00
BACKPORT: blk-mq: clear stale request in tags->rq[] before freeing one request pool
2021-09-03 05:19:17 -07:00
ANDROID: modularize BLK_MQ_VIRTIO
2020-01-31 16:27:30 -08:00
BACKPORT: blk-mq: fix is_flush_rq
2021-09-03 05:21:21 -07:00
BACKPORT: blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter
2021-09-03 05:17:29 -07:00
block: Fix a race in the runtime power management code
2020-08-20 12:17:49 +08:00
block: keep bdi->io_pages in sync with max_sectors_kb for stacked devices
2020-04-17 10:50:01 +02:00
blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
2020-10-29 09:57:34 +01:00
block: Simplify REQ_OP_ZONE_RESET_ALL handling
2020-12-30 11:50:54 +01:00
BACKPORT: blk-mq: fix is_flush_rq
2021-09-03 05:21:21 -07:00
BACKPORT: FROMLIST: Update Inline Encryption from v5 to v6 of patch series
2020-01-13 18:46:44 +00:00
block: Fix the type of 'sts' in bsg_queue_rq()
2020-01-23 08:22:44 +01:00
Revert "block: Enable BFQ io scheduler as default"
2021-06-27 07:09:30 -07:00
ANDROID: modularize BLK_MQ_VIRTIO
2020-01-31 16:27:30 -08:00
ANDROID: block: backport the ability to specify max_dun_bytes
2020-05-15 22:01:33 +00:00
BACKPORT: FROMLIST: Update Inline Encryption from v5 to v6 of patch series
2020-01-13 18:46:44 +00:00
ANDROID: Add OWNERS files referring to the respective android-mainline OWNERS
2021-04-01 13:45:14 +00:00
db5e1fbf5e