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authorLinus Torvalds <torvalds@linux-foundation.org>2019-02-15 09:12:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-02-15 09:12:28 -0800
commit24f0a48743a256bdec1bcb80708bc309da4aa261 (patch)
treeb3211465a2c59f56587c052b70ccd587d60d7f1e /block
parentae3fa8bd73c9b64416816ec0e9951cd8695c9854 (diff)
parentace74f73c200df4254788210ac70e00a7aeca4b8 (diff)
downloadlinux-stericsson-24f0a48743a256bdec1bcb80708bc309da4aa261.tar.gz
Merge tag 'for-linus-20190215' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe: - Ensure we insert into the hctx dispatch list, if a request is marked as DONTPREP (Jianchao) - NVMe pull request, single missing unlock on error fix (Keith) - MD pull request, single fix for a potentially data corrupting issue (Nate) - Floppy check_events regression fix (Yufen) * tag 'for-linus-20190215' of git://git.kernel.dk/linux-block: md/raid1: don't clear bitmap bits on interrupted recovery. floppy: check_events callback should not return a negative number nvme-pci: add missing unlock for reset error blk-mq: insert rq with DONTPREP to hctx dispatch list when requeue
Diffstat (limited to 'block')
-rw-r--r--block/blk-mq.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 8f5b533764ca..9437a5eb07cf 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -737,12 +737,20 @@ static void blk_mq_requeue_work(struct work_struct *work)
spin_unlock_irq(&q->requeue_lock);
list_for_each_entry_safe(rq, next, &rq_list, queuelist) {
- if (!(rq->rq_flags & RQF_SOFTBARRIER))
+ if (!(rq->rq_flags & (RQF_SOFTBARRIER | RQF_DONTPREP)))
continue;
rq->rq_flags &= ~RQF_SOFTBARRIER;
list_del_init(&rq->queuelist);
- blk_mq_sched_insert_request(rq, true, false, false);
+ /*
+ * If RQF_DONTPREP, rq has contained some driver specific
+ * data, so insert it to hctx dispatch list to avoid any
+ * merge.
+ */
+ if (rq->rq_flags & RQF_DONTPREP)
+ blk_mq_request_bypass_insert(rq, false);
+ else
+ blk_mq_sched_insert_request(rq, true, false, false);
}
while (!list_empty(&rq_list)) {