Commit b614d55b authored by Tomas Henzl's avatar Tomas Henzl Committed by Martin K. Petersen

scsi: mpt3sas: Don't call disable_irq from IRQ poll handler

disable_irq() might sleep, replace it with disable_irq_nosync(). For
synchronisation 'irq_poll_scheduled' is sufficient

Fixes: 320e77ac scsi: mpt3sas: Irq poll to avoid CPU hard lockups
Link: https://lore.kernel.org/r/20200901145026.12174-1-thenzl@redhat.comSigned-off-by: default avatarTomas Henzl <thenzl@redhat.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent d2af3914
...@@ -1733,7 +1733,7 @@ _base_irqpoll(struct irq_poll *irqpoll, int budget) ...@@ -1733,7 +1733,7 @@ _base_irqpoll(struct irq_poll *irqpoll, int budget)
reply_q = container_of(irqpoll, struct adapter_reply_queue, reply_q = container_of(irqpoll, struct adapter_reply_queue,
irqpoll); irqpoll);
if (reply_q->irq_line_enable) { if (reply_q->irq_line_enable) {
disable_irq(reply_q->os_irq); disable_irq_nosync(reply_q->os_irq);
reply_q->irq_line_enable = false; reply_q->irq_line_enable = false;
} }
num_entries = _base_process_reply_queue(reply_q); num_entries = _base_process_reply_queue(reply_q);
......
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