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CIFS: make arrays static const, reduces object code size

Don't populate the read-only arrays types[] on the stack, instead make
them both static const.  Makes the object code smaller by over 200 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
 111503	  37696	    448	 149647	  2488f	fs/cifs/file.o

After:
   text	   data	    bss	    dec	    hex	filename
 111140	  37856	    448	 149444	  247c4	fs/cifs/file.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Colin Ian King 8 years ago
parent
commit
4d61eda812
1 changed files with 8 additions and 4 deletions
  1. 8 4
      fs/cifs/file.c

+ 8 - 4
fs/cifs/file.c

@@ -1102,8 +1102,10 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile)
 	struct cifs_tcon *tcon;
 	unsigned int num, max_num, max_buf;
 	LOCKING_ANDX_RANGE *buf, *cur;
-	int types[] = {LOCKING_ANDX_LARGE_FILES,
-		       LOCKING_ANDX_SHARED_LOCK | LOCKING_ANDX_LARGE_FILES};
+	static const int types[] = {
+		LOCKING_ANDX_LARGE_FILES,
+		LOCKING_ANDX_SHARED_LOCK | LOCKING_ANDX_LARGE_FILES
+	};
 	int i;
 
 	xid = get_xid();
@@ -1434,8 +1436,10 @@ cifs_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
 		  unsigned int xid)
 {
 	int rc = 0, stored_rc;
-	int types[] = {LOCKING_ANDX_LARGE_FILES,
-		       LOCKING_ANDX_SHARED_LOCK | LOCKING_ANDX_LARGE_FILES};
+	static const int types[] = {
+		LOCKING_ANDX_LARGE_FILES,
+		LOCKING_ANDX_SHARED_LOCK | LOCKING_ANDX_LARGE_FILES
+	};
 	unsigned int i;
 	unsigned int max_num, num, max_buf;
 	LOCKING_ANDX_RANGE *buf, *cur;