diff options
| author | Uma Krishnan <ukrishn@linux.vnet.ibm.com> | 2017-06-22 04:13:32 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-06-26 21:01:06 +0200 |
| commit | 66ea9bcc392017b6df465b6f5847f6eac966a801 (patch) | |
| tree | e12f8654394261424af0ee67d573e5bafacf9fc8 /drivers/scsi/cxlflash/common.h | |
| parent | scsi: sgiwd93: switch to dma_alloc_attrs (diff) | |
| download | linux-66ea9bcc392017b6df465b6f5847f6eac966a801.tar.xz linux-66ea9bcc392017b6df465b6f5847f6eac966a801.zip | |
scsi: cxlflash: Combine the send queue locks
Currently there are separate spin locks for the two supported I/O queueing
models. This makes it difficult to serialize with paths outside the enqueue
path.
As a design simplification and to support serialization with enqueue
operations, move to only a single lock that is used for enqueueing
regardless of the queueing model.
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/cxlflash/common.h')
| -rw-r--r-- | drivers/scsi/cxlflash/common.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/scsi/cxlflash/common.h b/drivers/scsi/cxlflash/common.h index 256af819377d..6fc32cfc6026 100644 --- a/drivers/scsi/cxlflash/common.h +++ b/drivers/scsi/cxlflash/common.h @@ -193,7 +193,7 @@ struct hwq { u32 index; /* Index of this hwq */ atomic_t hsq_credits; - spinlock_t hsq_slock; + spinlock_t hsq_slock; /* Hardware send queue lock */ struct sisl_ioarcb *hsq_start; struct sisl_ioarcb *hsq_end; struct sisl_ioarcb *hsq_curr; @@ -204,7 +204,6 @@ struct hwq { bool toggle; s64 room; - spinlock_t rrin_slock; /* Lock to rrin queuing and cmd_room updates */ struct irq_poll irqpoll; } __aligned(cache_line_size()); |