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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-18 08:11:26 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:15:03 +0200
commit37db219ef9ccff280c83f10e5d7c1e5a1b6abc1b (patch)
tree2f043a63eb7025c29cb7319184de53214d53ee74 /arch/x86/ia32
parent2de0db992de189fccc83fed57c30875144821491 (diff)
x86: use _do_fork() in compat_sys_x86_clone()
It is trivial to directly call _do_fork() instead of the sys_clone() syscall in compat_sys_x86_clone(). This patch is part of a series which removes in-kernel calls to syscalls. On this basis, the syscall entry path can be streamlined. For details, see http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Slaby <jslaby@suse.com> Cc: x86@kernel.org Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'arch/x86/ia32')
-rw-r--r--arch/x86/ia32/sys_ia32.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 6512498bbef6..aa024a2dd34f 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -41,6 +41,7 @@
#include <linux/highuid.h>
#include <linux/sysctl.h>
#include <linux/slab.h>
+#include <linux/sched/task.h>
#include <asm/mman.h>
#include <asm/types.h>
#include <linux/uaccess.h>
@@ -241,6 +242,6 @@ COMPAT_SYSCALL_DEFINE5(x86_clone, unsigned long, clone_flags,
unsigned long, newsp, int __user *, parent_tidptr,
unsigned long, tls_val, int __user *, child_tidptr)
{
- return sys_clone(clone_flags, newsp, parent_tidptr, child_tidptr,
+ return _do_fork(clone_flags, newsp, 0, parent_tidptr, child_tidptr,
tls_val);
}