linux-kernel - [PATCH] cris: kill sys

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Message-ID: <20080509104116.GA7883@lst.de>
Date:	Fri, 9 May 2008 12:41:17 +0200
From:	Christoph Hellwig <hch@....de>
To:	starvik@...s.com, jesper.nilsson@...s.com, torvalds@...l.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] cris: kill sys_pipe implementation

The cris implementation of sys_pipe only differs from the generic one
by taking the BKL before calling do_pipe which isn't not nessecary.

Just kill the cris implementation and use the generic one.


Signed-off-by: Christoph Hellwig <hch@....de>

Index: linux-2.6/arch/cris/kernel/sys_cris.c
===================================================================
--- linux-2.6.orig/arch/cris/kernel/sys_cris.c	2008-05-09 12:39:34.000000000 +0200
+++ linux-2.6/arch/cris/kernel/sys_cris.c	2008-05-09 12:39:44.000000000 +0200
@@ -27,28 +27,6 @@
 #include <asm/uaccess.h>
 #include <asm/segment.h>
 
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way Unix traditionally does this, though.
- */
-asmlinkage int sys_pipe(unsigned long __user * fildes)
-{
-        int fd[2];
-        int error;
-
-        lock_kernel();
-        error = do_pipe(fd);
-        unlock_kernel();
-        if (!error) {
-                if (copy_to_user(fildes, fd, 2*sizeof(int))) {
-			sys_close(fd[0]);
-			sys_close(fd[1]);
-                        error = -EFAULT;
-		}
-        }
-        return error;
-}
-
 /* common code for old and new mmaps */
 static inline long
 do_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
--
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