diff options
| author | Tomas Henzl <thenzl@redhat.com> | 2020-09-01 16:50:26 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-09-03 04:36:05 +0200 |
| commit | b614d55b970d08bcac5b0bc15a5526181b3e4459 (patch) | |
| tree | 5232c93e8eb85c1cc22f4c028f87a987bdad4bf2 | |
| parent | scsi: megaraid_sas: Don't call disable_irq from process IRQ poll (diff) | |
| download | linux-b614d55b970d08bcac5b0bc15a5526181b3e4459.tar.xz linux-b614d55b970d08bcac5b0bc15a5526181b3e4459.zip | |
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: 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>
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_base.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 1d64524cd863..5850569a8396 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -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); |