Merge tag 'core-rcu-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / fs / nfsd / export.h

diff --git a/fs/nfsd/export.h b/fs/nfsd/export.h
index e7daa1f..ee0e3ab 100644 (file)
--- a/fs/nfsd/export.h
+++ b/fs/nfsd/export.h
@@ -6,6 +6,7 @@
 #define NFSD_EXPORT_H
 
 #include <linux/sunrpc/cache.h>
+#include <linux/percpu_counter.h>
 #include <uapi/linux/nfsd/export.h>
 #include <linux/nfs4.h>
 
@@ -46,6 +47,19 @@ struct exp_flavor_info {
        u32     flags;
 };
 
+/* Per-export stats */
+enum {
+       EXP_STATS_FH_STALE,
+       EXP_STATS_IO_READ,
+       EXP_STATS_IO_WRITE,
+       EXP_STATS_COUNTERS_NUM
+};
+
+struct export_stats {
+       time64_t                start_time;
+       struct percpu_counter   counter[EXP_STATS_COUNTERS_NUM];
+};
+
 struct svc_export {
        struct cache_head       h;
        struct auth_domain *    ex_client;
@@ -62,6 +76,7 @@ struct svc_export {
        struct nfsd4_deviceid_map *ex_devid_map;
        struct cache_detail     *cd;
        struct rcu_head         ex_rcu;
+       struct export_stats     ex_stats;
 };
 
 /* an "export key" (expkey) maps a filehandlefragement to an