NFS: Add some new I/O counters for FS-Cache doing things for NFS

[pandora-kernel.git] / fs / nfs / iostat.h

diff --git a/fs/nfs/iostat.h b/fs/nfs/iostat.h
index a369528..a2ab252 100644 (file)
--- a/fs/nfs/iostat.h
+++ b/fs/nfs/iostat.h
@@ -16,6 +16,9 @@
 
 struct nfs_iostats {
        unsigned long long      bytes[__NFSIOS_BYTESMAX];
+#ifdef CONFIG_NFS_FSCACHE
+       unsigned long long      fscache[__NFSIOS_FSCACHEMAX];
+#endif
        unsigned long           events[__NFSIOS_COUNTSMAX];
 } ____cacheline_aligned;
 
@@ -57,6 +60,21 @@ static inline void nfs_add_stats(const struct inode *inode,
        nfs_add_server_stats(NFS_SERVER(inode), stat, addend);
 }
 
+#ifdef CONFIG_NFS_FSCACHE
+static inline void nfs_add_fscache_stats(struct inode *inode,
+                                        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_no_resched();
+}
+#endif
+
 static inline struct nfs_iostats *nfs_alloc_iostats(void)
 {
        return alloc_percpu(struct nfs_iostats);