linux-kernel - [PATCH] do_pipe cleanup: drop its last user in arch/alpha/

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Date:	Sat, 24 Jan 2009 12:43:50 +0800
From:	Cheng Renquan <crquan@...il.com>
To:	Richard Henderson <rth@...ddle.net>, linux-alpha@...r.kernel.org
Cc:	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Al Viro <viro@...iv.linux.org.uk>, cr_quan@....com,
	linux-kernel@...r.kernel.org
Subject: [PATCH] do_pipe cleanup: drop its last user in arch/alpha/

The last user of do_pipe is in arch/alpha/, after replacing it with
do_pipe_flags, the do_pipe can be eventually dropped.

Signed-off-by: Cheng Renquan <crquan@...il.com>
Acked-by: Richard Henderson <rth@...ddle.net>
---
 arch/alpha/kernel/entry.S   |    3 ++-
 arch/alpha/kernel/osf_sys.c |    2 +-
 fs/pipe.c                   |    5 -----
 include/linux/fs.h          |    1 -
 4 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index aa2e50c..9031eb5 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -903,8 +903,9 @@ sys_alpha_pipe:
 	stq	$26, 0($sp)
 	.prologue 0
 
+	mov	$31, $17
 	lda	$16, 8($sp)
-	jsr	$26, do_pipe
+	jsr	$26, do_pipe_flags
 
 	ldq	$26, 0($sp)
 	bne	$0, 1f
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 18a3ea1..5c1678e 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -46,7 +46,7 @@
 #include <asm/hwrpb.h>
 #include <asm/processor.h>
 
-extern int do_pipe(int *);
+extern int do_pipe_flags(int *, int);
 
 /*
  * Brk needs to return an error.  Still support Linux's brk(0) query idiom,
diff --git a/fs/pipe.c b/fs/pipe.c
index 3a48ba5..365120c 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1034,11 +1034,6 @@ int do_pipe_flags(int *fd, int flags)
 	return error;
 }
 
-int do_pipe(int *fd)
-{
-	return do_pipe_flags(fd, 0);
-}
-
 /*
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way Unix traditionally does this, though.
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6022f44..9c0494c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1875,7 +1875,6 @@ static inline void allow_write_access(struct file *file)
 	if (file)
 		atomic_inc(&file->f_path.dentry->d_inode->i_writecount);
 }
-extern int do_pipe(int *);
 extern int do_pipe_flags(int *, int);
 extern struct file *create_read_pipe(struct file *f, int flags);
 extern struct file *create_write_pipe(int flags);
-- 
1.6.0.6

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