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authorAl Viro <viro@zeniv.linux.org.uk>2012-09-20 09:28:25 -0400
committerRichard Weinberger <richard@nod.at>2012-09-27 18:04:55 +0200
commitd2ce4e92fa4f79a5fdb4cc912b411280afe21697 (patch)
treed7b1cae518d150b30342cef8dfa1a76e82005d25 /arch/x86/um/syscalls_64.c
parentf9a38eace4498a5e9f6d2cdfc879d5444edc3a5f (diff)
downloadblackbird-op-linux-d2ce4e92fa4f79a5fdb4cc912b411280afe21697.tar.gz
blackbird-op-linux-d2ce4e92fa4f79a5fdb4cc912b411280afe21697.zip
um: kill thread->forking
we only use that to tell copy_thread() done by syscall from that done by kernel_thread(). However, it's easier to do simply by checking PF_KTHREAD in thread flags. Merge sys_clone() guts for 32bit and 64bit, while we are at it... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/x86/um/syscalls_64.c')
-rw-r--r--arch/x86/um/syscalls_64.c23
1 files changed, 3 insertions, 20 deletions
diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c
index f3d82bb6e15a..adb08eb5c22a 100644
--- a/arch/x86/um/syscalls_64.c
+++ b/arch/x86/um/syscalls_64.c
@@ -5,12 +5,9 @@
* Licensed under the GPL
*/
-#include "linux/linkage.h"
-#include "linux/personality.h"
-#include "linux/utsname.h"
-#include "asm/prctl.h" /* XXX This should get the constants from libc */
-#include "asm/uaccess.h"
-#include "os.h"
+#include <linux/sched.h>
+#include <asm/prctl.h> /* XXX This should get the constants from libc */
+#include <os.h>
long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr)
{
@@ -79,20 +76,6 @@ long sys_arch_prctl(int code, unsigned long addr)
return arch_prctl(current, code, (unsigned long __user *) addr);
}
-long sys_clone(unsigned long clone_flags, unsigned long newsp,
- void __user *parent_tid, void __user *child_tid)
-{
- long ret;
-
- if (!newsp)
- newsp = UPT_SP(&current->thread.regs.regs);
- current->thread.forking = 1;
- ret = do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
- child_tid);
- current->thread.forking = 0;
- return ret;
-}
-
void arch_switch_to(struct task_struct *to)
{
if ((to->thread.arch.fs == 0) || (to->mm == NULL))
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