linux-kernel - [PATCH 4/7] UML - Remove unused variable and function

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Date:	Mon, 08 Jan 2007 21:05:47 -0500
From:	Jeff Dike <jdike@...toit.com>
To:	akpm@...l.org
cc:	linux-kernel@...r.kernel.org,
	user-mode-linux-devel@...ts.sourceforge.net
Subject: [PATCH 4/7] UML - Remove unused variable and function

syscall_index and next_syscall_index turn out not to be used.

Signed-off-by: Jeff Dike <jdike@...toit.com>
--
 arch/um/include/kern_util.h |    1 -
 arch/um/kernel/syscall.c    |   16 ----------------
 2 files changed, 17 deletions(-)

Index: linux-2.6.18-mm/arch/um/include/kern_util.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/include/kern_util.h	2007-01-08 16:15:33.000000000 -0500
+++ linux-2.6.18-mm/arch/um/include/kern_util.h	2007-01-08 16:29:07.000000000 -0500
@@ -61,7 +61,6 @@ extern int set_signals(int enable);
 extern void force_sigbus(void);
 extern int pid_to_processor_id(int pid);
 extern void deliver_signals(void *t);
-extern int next_syscall_index(int max);
 extern int next_trap_index(int max);
 extern void default_idle(void);
 extern void finish_fork(void);
Index: linux-2.6.18-mm/arch/um/kernel/syscall.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/kernel/syscall.c	2006-12-29 12:20:14.000000000 -0500
+++ linux-2.6.18-mm/arch/um/kernel/syscall.c	2007-01-08 16:29:14.000000000 -0500
@@ -149,22 +149,6 @@ long sys_olduname(struct oldold_utsname 
 	return error;
 }
 
-DEFINE_SPINLOCK(syscall_lock);
-
-static int syscall_index = 0;
-
-int next_syscall_index(int limit)
-{
-	int ret;
-
-	spin_lock(&syscall_lock);
-	ret = syscall_index;
-	if(++syscall_index == limit)
-		syscall_index = 0;
-	spin_unlock(&syscall_lock);
-	return(ret);
-}
-
 int kernel_execve(const char *filename, char *const argv[], char *const envp[])
 {
 	mm_segment_t fs;

-
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