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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-26 01:44:05 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-26 01:44:05 +0300
commit2d70de4ee5931455811cd0ce692230785ae1c3ce (patch)
tree5302f6b5d939178c4b10ed5299316db321aa34b5 /kernel
parent5739844347518a0f4c327ae79e73fb101d864726 (diff)
parentf278eb3d8178f9c31f8dfad7e91440e603dd7f1a (diff)
downloadlinux-2d70de4ee5931455811cd0ce692230785ae1c3ce.tar.xz
Merge tag 'block-5.15-2021-09-25' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe: - NVMe pull request via Christoph: - keep ctrl->namespaces ordered (Christoph Hellwig) - fix incorrect h2cdata pdu offset accounting in nvme-tcp (Sagi Grimberg) - handled updated hw_queues in nvme-fc more carefully (Daniel Wagner, James Smart) - md lock order fix (Christoph) - fallocate locking fix (Ming) - blktrace UAF fix (Zhihao) - rq-qos bio tracking fix (Ming) * tag 'block-5.15-2021-09-25' of git://git.kernel.dk/linux-block: block: hold ->invalidate_lock in blkdev_fallocate blktrace: Fix uaf in blk_trace access after removing by sysfs block: don't call rq_qos_ops->done_bio if the bio isn't tracked md: fix a lock order reversal in md_alloc nvme: keep ctrl->namespaces ordered nvme-tcp: fix incorrect h2cdata pdu offset accounting nvme-fc: remove freeze/unfreeze around update_nr_hw_queues nvme-fc: avoid race between time out and tear down nvme-fc: update hardware queues before using them
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/blktrace.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index c221e4c3f625..fa91f398f28b 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1605,6 +1605,14 @@ static int blk_trace_remove_queue(struct request_queue *q)
if (bt == NULL)
return -EINVAL;
+ if (bt->trace_state == Blktrace_running) {
+ bt->trace_state = Blktrace_stopped;
+ spin_lock_irq(&running_trace_lock);
+ list_del_init(&bt->running_list);
+ spin_unlock_irq(&running_trace_lock);
+ relay_flush(bt->rchan);
+ }
+
put_probe_ref();
synchronize_rcu();
blk_trace_free(bt);