NVMe: Rename 'cycle' to 'phase'
authorMatthew Wilcox <matthew.r.wilcox@intel.com>
Thu, 20 Jan 2011 18:24:06 +0000 (13:24 -0500)
committerMatthew Wilcox <matthew.r.wilcox@intel.com>
Fri, 4 Nov 2011 19:52:51 +0000 (15:52 -0400)
It's called the phase bit in the current draft

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
drivers/block/nvme.c

index b6a213c98584efc477153fdb5e313ee61e7c7525..3d917a87ea93e88ae0561354761dfbdba0c25c94 100644 (file)
@@ -93,7 +93,7 @@ struct nvme_queue {
        u16 sq_head;
        u16 sq_tail;
        u16 cq_head;
-       u16 cq_cycle;
+       u16 cq_phase;
        unsigned long cmdid_data[];
 };
 
@@ -364,7 +364,7 @@ typedef void (*completion_fn)(struct nvme_queue *, void *,
 
 static irqreturn_t nvme_process_cq(struct nvme_queue *nvmeq)
 {
-       u16 head, cycle;
+       u16 head, phase;
 
        static const completion_fn completions[4] = {
                [sync_completion_id] = sync_completion,
@@ -372,19 +372,19 @@ static irqreturn_t nvme_process_cq(struct nvme_queue *nvmeq)
        };
 
        head = nvmeq->cq_head;
-       cycle = nvmeq->cq_cycle;
+       phase = nvmeq->cq_phase;
 
        for (;;) {
                unsigned long data;
                void *ptr;
                unsigned char handler;
                struct nvme_completion cqe = nvmeq->cqes[head];
-               if ((le16_to_cpu(cqe.status) & 1) != cycle)
+               if ((le16_to_cpu(cqe.status) & 1) != phase)
                        break;
                nvmeq->sq_head = le16_to_cpu(cqe.sq_head);
                if (++head == nvmeq->q_depth) {
                        head = 0;
-                       cycle = !cycle;
+                       phase = !phase;
                }
 
                data = free_cmdid(nvmeq, cqe.command_id);
@@ -399,12 +399,12 @@ static irqreturn_t nvme_process_cq(struct nvme_queue *nvmeq)
         * requires that 0.1% of your interrupts are handled, so this isn't
         * a big problem.
         */
-       if (head == nvmeq->cq_head && cycle == nvmeq->cq_cycle)
+       if (head == nvmeq->cq_head && phase == nvmeq->cq_phase)
                return IRQ_NONE;
 
        writel(head, nvmeq->q_db + 1);
        nvmeq->cq_head = head;
-       nvmeq->cq_cycle = cycle;
+       nvmeq->cq_phase = phase;
 
        return IRQ_HANDLED;
 }
@@ -557,7 +557,7 @@ static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid,
        nvmeq->q_dmadev = dmadev;
        spin_lock_init(&nvmeq->q_lock);
        nvmeq->cq_head = 0;
-       nvmeq->cq_cycle = 1;
+       nvmeq->cq_phase = 1;
        init_waitqueue_head(&nvmeq->sq_full);
        bio_list_init(&nvmeq->sq_cong);
        nvmeq->q_db = &dev->dbs[qid * 2];