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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-18 08:11:26 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 20:15:03 +0200 |
| commit | 37db219ef9ccff280c83f10e5d7c1e5a1b6abc1b (patch) | |
| tree | 2f043a63eb7025c29cb7319184de53214d53ee74 /arch/x86/ia32/sys_ia32.c | |
| parent | 2de0db992de189fccc83fed57c30875144821491 (diff) | |
| download | lwn-37db219ef9ccff280c83f10e5d7c1e5a1b6abc1b.tar.gz lwn-37db219ef9ccff280c83f10e5d7c1e5a1b6abc1b.zip | |
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/sys_ia32.c')
| -rw-r--r-- | arch/x86/ia32/sys_ia32.c | 3 |
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); } |