diff options
| author | Chuck Lever <chuck.lever@oracle.com> | 2020-12-29 15:47:44 -0500 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2021-01-25 09:36:28 -0500 |
| commit | df971cd853c05778ae1175e8aeb80a04bb9d4be5 (patch) | |
| tree | 90179b120aa5fcfcfacc44439ffbb0e2a1ae16f2 /include/linux | |
| parent | 59a00257c66c2d7b3db21245287711ea6c745e7c (diff) | |
svcrdma: Convert rdma_stat_recv to a per-CPU counter
Receives are frequent events. Avoid the overhead of a memory bus
lock cycle for counting a value that is hardly every used.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sunrpc/svc_rdma.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h index 294b56e61522..ff32c59a27e7 100644 --- a/include/linux/sunrpc/svc_rdma.h +++ b/include/linux/sunrpc/svc_rdma.h @@ -49,6 +49,7 @@ #include <linux/sunrpc/rpc_rdma_cid.h> #include <linux/sunrpc/svc_rdma_pcl.h> +#include <linux/percpu_counter.h> #include <rdma/ib_verbs.h> #include <rdma/rdma_cm.h> @@ -65,7 +66,7 @@ extern unsigned int svcrdma_max_requests; extern unsigned int svcrdma_max_bc_requests; extern unsigned int svcrdma_max_req_size; -extern atomic_t rdma_stat_recv; +extern struct percpu_counter svcrdma_stat_recv; extern atomic_t rdma_stat_read; extern atomic_t rdma_stat_write; extern atomic_t rdma_stat_sq_starve; |