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authorJames Smart <jsmart2021@gmail.com>2017-09-11 16:16:53 -0700
committerJens Axboe <axboe@kernel.dk>2017-09-25 08:56:05 -0600
commitdeb61742e060d4447712598bc11bb50f8b2e51dd (patch)
tree92bdcc22e8420ae9e0f551bc9db728c97897c555 /drivers/nvme
parentnvme-fc: use transport-specific sgl format (diff)
downloadlinux-dev-deb61742e060d4447712598bc11bb50f8b2e51dd.tar.xz
linux-dev-deb61742e060d4447712598bc11bb50f8b2e51dd.zip
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>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/target/fc.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
index 088f07250d76..c48c83d97e30 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -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))