this_cpu: Use this_cpu operations for NFS statistics
Simplify NFS statistics and allow the use of optimized
arch instructions.
Acked-by: Tejun Heo <tj@kernel.org>
CC: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/fs/nfs/iostat.h b/fs/nfs/iostat.h
index ceda50a..46d779a 100644
--- a/fs/nfs/iostat.h
+++ b/fs/nfs/iostat.h
@@ -25,13 +25,7 @@
static inline void nfs_inc_server_stats(const struct nfs_server *server,
enum nfs_stat_eventcounters stat)
{
- struct nfs_iostats *iostats;
- int cpu;
-
- cpu = get_cpu();
- iostats = per_cpu_ptr(server->io_stats, cpu);
- iostats->events[stat]++;
- put_cpu();
+ this_cpu_inc(server->io_stats->events[stat]);
}
static inline void nfs_inc_stats(const struct inode *inode,
@@ -44,13 +38,7 @@
enum nfs_stat_bytecounters stat,
unsigned long addend)
{
- struct nfs_iostats *iostats;
- int cpu;
-
- cpu = get_cpu();
- iostats = per_cpu_ptr(server->io_stats, cpu);
- iostats->bytes[stat] += addend;
- put_cpu();
+ this_cpu_add(server->io_stats->bytes[stat], addend);
}
static inline void nfs_add_stats(const struct inode *inode,
@@ -65,13 +53,7 @@
enum nfs_stat_fscachecounters stat,
unsigned long addend)
{
- struct nfs_iostats *iostats;
- int cpu;
-
- cpu = get_cpu();
- iostats = per_cpu_ptr(NFS_SERVER(inode)->io_stats, cpu);
- iostats->fscache[stat] += addend;
- put_cpu();
+ this_cpu_add(NFS_SERVER(inode)->io_stats->fscache[stat], addend);
}
#endif