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Date: Fri, 9 May 2008 14:44:02 +0200
From: Christoph Hellwig <hch@....de>
To: Hirokazu Takata <takata@...ux-m32r.org>, torvalds@...l.org
Cc: linux-m32r@...linux-m32r.org, linux-kernel@...r.kernel.org
Subject: [PATCH] m32r: use generic sys_pipe
m32r can use the generic sys_pipe implementation.
The current sys_pipe implementation on m32r only differes from the
generic one by passing a lot of additional unused registers to sys_pipe.
Reviewed and tested by Hirokazu Takata.
Index: linux-2.6/arch/m32r/kernel/sys_m32r.c
===================================================================
--- linux-2.6.orig/arch/m32r/kernel/sys_m32r.c 2008-05-09 12:44:10.000000000 +0200
+++ linux-2.6/arch/m32r/kernel/sys_m32r.c 2008-05-09 12:44:16.000000000 +0200
@@ -76,29 +76,6 @@ asmlinkage int sys_tas(int __user *addr)
return oldval;
}
-/*
- * 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 r0, unsigned long r1, unsigned long r2,
- unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, struct pt_regs regs)
-{
- int fd[2];
- int error;
-
- error = do_pipe(fd);
- if (!error) {
- if (copy_to_user((void __user *)r0, fd, 2*sizeof(int))) {
- sys_close(fd[0]);
- sys_close(fd[1]);
- error = -EFAULT;
- }
- }
- return error;
-}
-
asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
--
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