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-rw-r--r--block/blk-lib.c12
-rw-r--r--block/blk-mq.c17
-rw-r--r--block/genhd.c5
-rw-r--r--block/ioprio.c2
4 files changed, 19 insertions, 17 deletions
diff --git a/block/blk-lib.c b/block/blk-lib.c
index ff2a7f04af4d..9031d2af0b47 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -115,6 +115,7 @@ int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
ret = submit_bio_wait(bio);
if (ret == -EOPNOTSUPP)
ret = 0;
+ bio_put(bio);
}
blk_finish_plug(&plug);
@@ -168,8 +169,10 @@ int blkdev_issue_write_same(struct block_device *bdev, sector_t sector,
}
}
- if (bio)
+ if (bio) {
ret = submit_bio_wait(bio);
+ bio_put(bio);
+ }
return ret != -EOPNOTSUPP ? ret : 0;
}
EXPORT_SYMBOL(blkdev_issue_write_same);
@@ -209,8 +212,11 @@ static int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
}
}
- if (bio)
- return submit_bio_wait(bio);
+ if (bio) {
+ ret = submit_bio_wait(bio);
+ bio_put(bio);
+ return ret;
+ }
return 0;
}
diff --git a/block/blk-mq.c b/block/blk-mq.c
index bc7166d27340..2a1920c6d6e5 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1264,12 +1264,9 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
blk_queue_split(q, &bio, q->bio_split);
- if (!is_flush_fua && !blk_queue_nomerges(q)) {
- if (blk_attempt_plug_merge(q, bio, &request_count,
- &same_queue_rq))
- return BLK_QC_T_NONE;
- } else
- request_count = blk_plug_queued_count(q);
+ if (!is_flush_fua && !blk_queue_nomerges(q) &&
+ blk_attempt_plug_merge(q, bio, &request_count, &same_queue_rq))
+ return BLK_QC_T_NONE;
rq = blk_mq_map_request(q, bio, &data);
if (unlikely(!rq))
@@ -1360,9 +1357,11 @@ static blk_qc_t blk_sq_make_request(struct request_queue *q, struct bio *bio)
blk_queue_split(q, &bio, q->bio_split);
- if (!is_flush_fua && !blk_queue_nomerges(q) &&
- blk_attempt_plug_merge(q, bio, &request_count, NULL))
- return BLK_QC_T_NONE;
+ if (!is_flush_fua && !blk_queue_nomerges(q)) {
+ if (blk_attempt_plug_merge(q, bio, &request_count, NULL))
+ return BLK_QC_T_NONE;
+ } else
+ request_count = blk_plug_queued_count(q);
rq = blk_mq_map_request(q, bio, &data);
if (unlikely(!rq))
diff --git a/block/genhd.c b/block/genhd.c
index 9f42526b4d62..f06d7f3b075b 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1523,12 +1523,7 @@ static void __disk_unblock_events(struct gendisk *disk, bool check_now)
if (--ev->block)
goto out_unlock;
- /*
- * Not exactly a latency critical operation, set poll timer
- * slack to 25% and kick event check.
- */
intv = disk_events_poll_jiffies(disk);
- set_timer_slack(&ev->dwork.timer, intv / 4);
if (check_now)
queue_delayed_work(system_freezable_power_efficient_wq,
&ev->dwork, 0);
diff --git a/block/ioprio.c b/block/ioprio.c
index cc7800e9eb44..01b8116298a1 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -150,8 +150,10 @@ static int get_task_ioprio(struct task_struct *p)
if (ret)
goto out;
ret = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, IOPRIO_NORM);
+ task_lock(p);
if (p->io_context)
ret = p->io_context->ioprio;
+ task_unlock(p);
out:
return ret;
}