NFS: Now that file handle comparison ignores the unused parts of the

   file handle container, there is no longer any need to clear the
   file handle container before copying in a file handle.  This
   allows us to remove a 128 byte memset() from several hot paths.

Signed-off-by: Chuck Lever <cel@netapp.com>

Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/nfs.h b/include/linux/nfs.h
index 11a05d8a1f24..ca2ffa6ae1d5 100644
--- a/include/linux/nfs.h
+++ b/include/linux/nfs.h
@@ -148,6 +148,12 @@ static inline int nfs_compare_fh(const struct nfs_fh *a, const struct nfs_fh *b)
 	return a->size != b->size || memcmp(a->data, b->data, a->size) != 0;
 }
 
+static inline void nfs_copy_fh(struct nfs_fh *target, const struct nfs_fh *source)
+{
+	target->size = source->size;
+	memcpy(target->data, source->data, source->size);
+}
+
 
 /*
  * This is really a general kernel constant, but since nothing like