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| author | Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> | 2021-01-14 02:33:52 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-02-02 10:26:11 +0100 |
| commit | 624e67fdf9a657fe437d84dd9f28b35e594183dd (patch) | |
| tree | 25d3759e436bb9d80a3f85ec48b4ddcf1f98600e /drivers/nvme/target/admin-cmd.c | |
| parent | nvme: refactor ns->ctrl by request (diff) | |
| download | linux-624e67fdf9a657fe437d84dd9f28b35e594183dd.tar.xz linux-624e67fdf9a657fe437d84dd9f28b35e594183dd.zip | |
nvmet: remove extra variable in smart log nsid
We remove the extra local variable struct nvmet_ns in
nvmet_get_smart_log_nsid() since req already has ns member that can be
reused, this also eliminates the explicit call to nvmet_put_namespace()
which is already present in the request completion path.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to '')
| -rw-r--r-- | drivers/nvme/target/admin-cmd.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index dc1ea468b182..de804d9762dd 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -74,11 +74,11 @@ static void nvmet_execute_get_log_page_error(struct nvmet_req *req) static u16 nvmet_get_smart_log_nsid(struct nvmet_req *req, struct nvme_smart_log *slog) { - struct nvmet_ns *ns; u64 host_reads, host_writes, data_units_read, data_units_written; - ns = nvmet_find_namespace(req->sq->ctrl, req->cmd->get_log_page.nsid); - if (!ns) { + req->ns = nvmet_find_namespace(req->sq->ctrl, + req->cmd->get_log_page.nsid); + if (!req->ns) { pr_err("Could not find namespace id : %d\n", le32_to_cpu(req->cmd->get_log_page.nsid)); req->error_loc = offsetof(struct nvme_rw_command, nsid); @@ -86,22 +86,20 @@ static u16 nvmet_get_smart_log_nsid(struct nvmet_req *req, } /* we don't have the right data for file backed ns */ - if (!ns->bdev) - goto out; + if (!req->ns->bdev) + return NVME_SC_SUCCESS; - host_reads = part_stat_read(ns->bdev, ios[READ]); + host_reads = part_stat_read(req->ns->bdev, ios[READ]); data_units_read = - DIV_ROUND_UP(part_stat_read(ns->bdev, sectors[READ]), 1000); - host_writes = part_stat_read(ns->bdev, ios[WRITE]); + DIV_ROUND_UP(part_stat_read(req->ns->bdev, sectors[READ]), 1000); + host_writes = part_stat_read(req->ns->bdev, ios[WRITE]); data_units_written = - DIV_ROUND_UP(part_stat_read(ns->bdev, sectors[WRITE]), 1000); + DIV_ROUND_UP(part_stat_read(req->ns->bdev, sectors[WRITE]), 1000); put_unaligned_le64(host_reads, &slog->host_reads[0]); put_unaligned_le64(data_units_read, &slog->data_units_read[0]); put_unaligned_le64(host_writes, &slog->host_writes[0]); put_unaligned_le64(data_units_written, &slog->data_units_written[0]); -out: - nvmet_put_namespace(ns); return NVME_SC_SUCCESS; } |