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-rw-r--r--fs/nfs/iostat.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/iostat.h b/fs/nfs/iostat.h
index b17a9eb9b148..49862c95b224 100644
--- a/fs/nfs/iostat.h
+++ b/fs/nfs/iostat.h
@@ -46,6 +46,10 @@ static inline void nfs_add_stats(const struct inode *inode,
nfs_add_server_stats(NFS_SERVER(inode), stat, addend);
}
+/*
+ * This specialized allocator has to be a macro for its allocations to be
+ * accounted separately (to have a separate alloc_tag).
+ */
#define nfs_alloc_iostats() alloc_percpu(struct nfs_iostats)
static inline void nfs_free_iostats(struct nfs_iostats __percpu *stats)