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authorArnd Bergmann2006-10-02 04:18:26 -0500
committerLinus Torvalds2006-10-02 09:57:23 -0500
commit6760856791c6e527da678021ee6a67896549d4da (patch)
tree31bf78dac3a2ea68282ae394aeedb15bc92ae7d7 /init
parent2453a3062d36f39f01302f9f1ad18e7a0c54fe38 (diff)
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[PATCH] introduce kernel_execve
The use of execve() in the kernel is dubious, since it relies on the __KERNEL_SYSCALLS__ mechanism that stores the result in a global errno variable. As a first step of getting rid of this, change all users to a global kernel_execve function that returns a proper error code. This function is a terrible hack, and a later patch removes it again after the kernel syscalls are gone. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Andi Kleen <ak@muc.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Hirokazu Takata <takata.hirokazu@renesas.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Richard Curnow <rc@rc0.org.uk> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Cc: Chris Zankel <chris@zankel.net> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'init')
-rw-r--r--init/do_mounts_initrd.c3
-rw-r--r--init/main.c4
2 files changed, 2 insertions, 5 deletions
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index a06f037fa000..919a80cb322e 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -1,4 +1,3 @@
1#define __KERNEL_SYSCALLS__
2#include <linux/unistd.h> 1#include <linux/unistd.h>
3#include <linux/kernel.h> 2#include <linux/kernel.h>
4#include <linux/fs.h> 3#include <linux/fs.h>
@@ -35,7 +34,7 @@ static int __init do_linuxrc(void * shell)
35 (void) sys_open("/dev/console",O_RDWR,0); 34 (void) sys_open("/dev/console",O_RDWR,0);
36 (void) sys_dup(0); 35 (void) sys_dup(0);
37 (void) sys_dup(0); 36 (void) sys_dup(0);
38 return execve(shell, argv, envp_init); 37 return kernel_execve(shell, argv, envp_init);
39} 38}
40 39
41static void __init handle_initrd(void) 40static void __init handle_initrd(void)
diff --git a/init/main.c b/init/main.c
index 0766e69712b2..a49b00235bda 100644
--- a/init/main.c
+++ b/init/main.c
@@ -9,8 +9,6 @@
9 * Simplified starting of init: Michael A. Griffith <grif@acm.org> 9 * Simplified starting of init: Michael A. Griffith <grif@acm.org>
10 */ 10 */
11 11
12#define __KERNEL_SYSCALLS__
13
14#include <linux/types.h> 12#include <linux/types.h>
15#include <linux/module.h> 13#include <linux/module.h>
16#include <linux/proc_fs.h> 14#include <linux/proc_fs.h>
@@ -703,7 +701,7 @@ static void do_pre_smp_initcalls(void)
703static void run_init_process(char *init_filename) 701static void run_init_process(char *init_filename)
704{ 702{
705 argv_init[0] = init_filename; 703 argv_init[0] = init_filename;
706 execve(init_filename, argv_init, envp_init); 704 kernel_execve(init_filename, argv_init, envp_init);
707} 705}
708 706
709static int init(void * unused) 707static int init(void * unused)