diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2009-04-03 00:44:03 -0700 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2009-11-06 03:53:18 -0800 |
| commit | 6f589526df36dc6ac60df48e7ca23f536e71d332 (patch) | |
| tree | 21ab321df8cfe9ba0f21dea594fff12aad5792ec /arch/ia64 | |
| parent | da3f6f9b3e0d1e73975ca81ae124406bf1587d40 (diff) | |
sysctl: ia64 Use the compat_sys_sysctl
Now that we have a generic 32bit compatibility implementation
there is no need for ia64 to implement it's own.
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/ia32/ia32_entry.S | 2 | ||||
| -rw-r--r-- | arch/ia64/ia32/sys_ia32.c | 55 |
2 files changed, 1 insertions, 56 deletions
diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S index af9405cd70e5..10c37510f4b4 100644 --- a/arch/ia64/ia32/ia32_entry.S +++ b/arch/ia64/ia32/ia32_entry.S @@ -327,7 +327,7 @@ ia32_syscall_table: data8 compat_sys_writev data8 sys_getsid data8 sys_fdatasync - data8 sys32_sysctl + data8 compat_sys_sysctl data8 sys_mlock /* 150 */ data8 sys_munlock data8 sys_mlockall diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c index 625ed8f76fce..429ec968c9ee 100644 --- a/arch/ia64/ia32/sys_ia32.c +++ b/arch/ia64/ia32/sys_ia32.c @@ -1628,61 +1628,6 @@ sys32_msync (unsigned int start, unsigned int len, int flags) return sys_msync(addr, len + (start - addr), flags); } -struct sysctl32 { - unsigned int name; - int nlen; - unsigned int oldval; - unsigned int oldlenp; - unsigned int newval; - unsigned int newlen; - unsigned int __unused[4]; -}; - -#ifdef CONFIG_SYSCTL_SYSCALL -asmlinkage long -sys32_sysctl (struct sysctl32 __user *args) -{ - struct sysctl32 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, args, 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 = (int __user *) 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 - asmlinkage long sys32_newuname (struct new_utsname __user *name) { |