Commit 97a32864 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Jens Axboe

blk-mq: fixup "Convert to new hotplug state machine"

The "blk_mq_queue_reinit_dead()" just cleared the cpumask instead doing
a copy. Since we might never had an online callback we could end up with
a ZERO mask which in turn leads to crash as test robot demonstarted.

Fixes: 65d5291e ("blk-mq: Convert to new hotplug state machine")
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent 65d5291e
...@@ -2158,7 +2158,7 @@ static void blk_mq_queue_reinit_work(void) ...@@ -2158,7 +2158,7 @@ static void blk_mq_queue_reinit_work(void)
static int blk_mq_queue_reinit_dead(unsigned int cpu) static int blk_mq_queue_reinit_dead(unsigned int cpu)
{ {
cpumask_clear_cpu(cpu, &cpuhp_online_new); cpumask_copy(&cpuhp_online_new, cpu_online_mask);
blk_mq_queue_reinit_work(); blk_mq_queue_reinit_work();
return 0; return 0;
} }
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment