Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-09 14:50:19 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

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

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

Fixes: 320e77acb3 scsi: mpt3sas: Irq poll to avoid CPU hard lockups
Link: https://lore.kernel.org/r/20200901145026.12174-1-thenzl@redhat.com
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Tomas Henzl 2020-09-01 16:50:26 +02:00 committed by Martin K. Petersen
parent d2af39141e
commit b614d55b97
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/scsi/mpt3sas/mpt3sas_base.c
View File

@ -1733,7 +1733,7 @@ _base_irqpoll(struct irq_poll *irqpoll, int budget)
reply_q = container_of(irqpoll, struct adapter_reply_queue,
irqpoll);
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;
}
num_entries = _base_process_reply_queue(reply_q);