[patch] 2.4.19 Generate better code for nfs_sillyrename

[Keith Owens]

Using strlen() generates an unnecessary inline function expansion plus
dynamic stack adjustment.  For constant strings, strlen() == sizeof()-1
and the object code is better.  Patch against 2.4.19.

diff -urp 2.4.x-xfs-linux/fs/nfs/dir.c 2.4.x-xfs-linux-kdb/fs/nfs/dir.c
--- 2.4.x-xfs-linux/fs/nfs/dir.c	Fri Aug  9 16:03:57 2002
+++ 2.4.x-xfs-linux-kdb/fs/nfs/dir.c	Wed Aug 28 16:54:44 2002
@@ -741,7 +741,7 @@ static int nfs_sillyrename(struct inode 
 	static unsigned int sillycounter;
 	const int      i_inosize  = sizeof(dir->i_ino)*2;
 	const int      countersize = sizeof(sillycounter)*2;
-	const int      slen       = strlen(".nfs") + i_inosize + countersize;
+	const int      slen       = sizeof(".nfs")-1 + i_inosize + countersize;
 	char           silly[slen+1];
 	struct qstr    qsilly;
 	struct dentry *sdentry;