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nvmet-fc: fix failing max io queue connections 

fc transport is treating NVMET_NR_QUEUES as maximum queue count, e.g.
admin queue plus NVMET_NR_QUEUES-1 io queues.  But NVMET_NR_QUEUES is
the number of io queues, so maximum queue count is really
NVMET_NR_QUEUES+1.

Fix the handling in the target fc transport

Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
James Smart 2017-09-11 16:16:53 -07:00 committed by Jens Axboe
parent d9d34c0b23
commit deb61742e0
1 changed files with 3 additions and 3 deletions
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6
drivers/nvme/target/fc.c
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@ -148,7 +148,7 @@ struct nvmet_fc_tgt_assoc {
u32 a_id;
struct nvmet_fc_tgtport *tgtport;
struct list_head a_list;
struct nvmet_fc_tgt_queue *queues[NVMET_NR_QUEUES];
struct nvmet_fc_tgt_queue *queues[NVMET_NR_QUEUES + 1];
struct kref ref;
};
@ -608,7 +608,7 @@ nvmet_fc_alloc_target_queue(struct nvmet_fc_tgt_assoc *assoc,
unsigned long flags;
int ret;
if (qid >= NVMET_NR_QUEUES)
if (qid > NVMET_NR_QUEUES)
return NULL;
queue = kzalloc((sizeof(*queue) +
@ -888,7 +888,7 @@ nvmet_fc_delete_target_assoc(struct nvmet_fc_tgt_assoc *assoc)
int i;
spin_lock_irqsave(&tgtport->lock, flags);
for (i = NVMET_NR_QUEUES - 1; i >= 0; i--) {
for (i = NVMET_NR_QUEUES; i >= 0; i--) {
queue = assoc->queues[i];
if (queue) {
if (!nvmet_fc_tgt_q_get(queue))