nvme: move nvme_error_status to common code

And mark it inline so that we don't slow down the completion path by
having to turn it into a forced out of line call.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 19583e1..9f77126 100644 (file)
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -85,6 +85,18 @@ static inline u64 nvme_block_nr(struct nvme_ns *ns, sector_t sector)
        return (sector >> (ns->lba_shift - 9));
 }
 
+static inline int nvme_error_status(u16 status)
+{
+       switch (status & 0x7ff) {
+       case NVME_SC_SUCCESS:
+               return 0;
+       case NVME_SC_CAP_EXCEEDED:
+               return -ENOSPC;
+       default:
+               return -EIO;
+       }
+}
+
 int nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
                void *buf, unsigned bufflen);
 int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 801d51d..d29d36d 100644 (file)
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -547,18 +547,6 @@ static void nvme_free_iod(struct nvme_dev *dev, struct nvme_iod *iod)
                kfree(iod);
 }
 
-static int nvme_error_status(u16 status)
-{
-       switch (status & 0x7ff) {
-       case NVME_SC_SUCCESS:
-               return 0;
-       case NVME_SC_CAP_EXCEEDED:
-               return -ENOSPC;
-       default:
-               return -EIO;
-       }
-}
-
 #ifdef CONFIG_BLK_DEV_INTEGRITY
 static void nvme_dif_prep(u32 p, u32 v, struct t10_pi_tuple *pi)
 {