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authorWeston Andros Adamson <dros@primarydata.com>2014-06-24 18:59:52 +0400
committerTom Haynes <loghyr@primarydata.com>2015-02-03 22:06:38 +0300
commit840210fc4872bcbc17ab4f435f28021dce9d0aff (patch)
tree6be82bb7ca5a4ef88746e023b139e2dda7b7e566 /net/sunrpc
parent16cecdf620eb23d2654a265d9b20e089370d7425 (diff)
downloadlinux-840210fc4872bcbc17ab4f435f28021dce9d0aff.tar.xz
sunrpc: add rpc_count_iostats_idx
Add a call to tally stats for a task under a different statsidx than what's contained in the task structure. This is needed to properly account for pnfs reads/writes when the DS nfs version != the MDS version. Signed-off-by: Weston Andros Adamson <dros@primarydata.com> Signed-off-by: Tom Haynes <Thomas.Haynes@primarydata.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/stats.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index 9711a155bc50..2ecb994314c1 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -140,22 +140,20 @@ void rpc_free_iostats(struct rpc_iostats *stats)
EXPORT_SYMBOL_GPL(rpc_free_iostats);
/**
- * rpc_count_iostats - tally up per-task stats
+ * rpc_count_iostats_metrics - tally up per-task stats
* @task: completed rpc_task
- * @stats: array of stat structures
+ * @op_metrics: stat structure for OP that will accumulate stats from @task
*/
-void rpc_count_iostats(const struct rpc_task *task, struct rpc_iostats *stats)
+void rpc_count_iostats_metrics(const struct rpc_task *task,
+ struct rpc_iostats *op_metrics)
{
struct rpc_rqst *req = task->tk_rqstp;
- struct rpc_iostats *op_metrics;
ktime_t delta, now;
- if (!stats || !req)
+ if (!op_metrics || !req)
return;
now = ktime_get();
- op_metrics = &stats[task->tk_msg.rpc_proc->p_statidx];
-
spin_lock(&op_metrics->om_lock);
op_metrics->om_ops++;
@@ -175,6 +173,20 @@ void rpc_count_iostats(const struct rpc_task *task, struct rpc_iostats *stats)
spin_unlock(&op_metrics->om_lock);
}
+EXPORT_SYMBOL_GPL(rpc_count_iostats_metrics);
+
+/**
+ * rpc_count_iostats - tally up per-task stats
+ * @task: completed rpc_task
+ * @stats: array of stat structures
+ *
+ * Uses the statidx from @task
+ */
+void rpc_count_iostats(const struct rpc_task *task, struct rpc_iostats *stats)
+{
+ rpc_count_iostats_metrics(task,
+ &stats[task->tk_msg.rpc_proc->p_statidx]);
+}
EXPORT_SYMBOL_GPL(rpc_count_iostats);
static void _print_name(struct seq_file *seq, unsigned int op,