summaryrefslogtreecommitdiff
path: root/arch/x86/ia32/sys_ia32.c
diff options
context:
space:
mode:
authorEric W. Biederman <ebiederm@xmission.com>2009-04-03 07:59:52 (GMT)
committerEric W. Biederman <ebiederm@xmission.com>2009-11-06 11:53:58 (GMT)
commitc3359fbce4b65d542d02c30aa5174c8e4838da2d (patch)
treecdd54e655bd11c77db8265a6b6852476ddffd1ce /arch/x86/ia32/sys_ia32.c
parent03102a4ded430586936445a733d0d29660f4d7c1 (diff)
downloadlinux-c3359fbce4b65d542d02c30aa5174c8e4838da2d.tar.xz
sysctl: x86 Use the compat_sys_sysctl
Now that we have a generic 32bit compatibility implementation there is no need for x86 to implement it's own. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'arch/x86/ia32/sys_ia32.c')
-rw-r--r--arch/x86/ia32/sys_ia32.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 9f55271..df82c0e 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -434,62 +434,6 @@ asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
return ret;
}
-#ifdef CONFIG_SYSCTL_SYSCALL
-struct sysctl_ia32 {
- unsigned int name;
- int nlen;
- unsigned int oldval;
- unsigned int oldlenp;
- unsigned int newval;
- unsigned int newlen;
- unsigned int __unused[4];
-};
-
-
-asmlinkage long sys32_sysctl(struct sysctl_ia32 __user *args32)
-{
- struct sysctl_ia32 a32;
- mm_segment_t old_fs = get_fs();
- void __user *oldvalp, *newvalp;
- size_t oldlen;
- int __user *namep;
- long ret;
-
- if (copy_from_user(&a32, args32, sizeof(a32)))
- return -EFAULT;
-
- /*
- * We need to pre-validate these because we have to disable
- * address checking before calling do_sysctl() because of
- * OLDLEN but we can't run the risk of the user specifying bad
- * addresses here. Well, since we're dealing with 32 bit
- * addresses, we KNOW that access_ok() will always succeed, so
- * this is an expensive NOP, but so what...
- */
- namep = compat_ptr(a32.name);
- oldvalp = compat_ptr(a32.oldval);
- newvalp = compat_ptr(a32.newval);
-
- if ((oldvalp && get_user(oldlen, (int __user *)compat_ptr(a32.oldlenp)))
- || !access_ok(VERIFY_WRITE, namep, 0)
- || !access_ok(VERIFY_WRITE, oldvalp, 0)
- || !access_ok(VERIFY_WRITE, newvalp, 0))
- return -EFAULT;
-
- set_fs(KERNEL_DS);
- lock_kernel();
- ret = do_sysctl(namep, a32.nlen, oldvalp, (size_t __user *)&oldlen,
- newvalp, (size_t) a32.newlen);
- unlock_kernel();
- set_fs(old_fs);
-
- if (oldvalp && put_user(oldlen, (int __user *)compat_ptr(a32.oldlenp)))
- return -EFAULT;
-
- return ret;
-}
-#endif
-
/* warning: next two assume little endian */
asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
u32 poslo, u32 poshi)