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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-22 22:34:11 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-28 22:13:44 -0500 |
| commit | 1d4b4b2994b5fc208963c0b795291f8c1f18becf (patch) | |
| tree | befe27a3e2abc333b5bd81ee7381e4c5541f543f /arch/x86/kernel/process.c | |
| parent | 71613c3b871c5a9f27cc48f124251bcd3aa23be1 (diff) | |
| download | talos-obmc-linux-1d4b4b2994b5fc208963c0b795291f8c1f18becf.tar.gz talos-obmc-linux-1d4b4b2994b5fc208963c0b795291f8c1f18becf.zip | |
x86, um: switch to generic fork/vfork/clone
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/x86/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index b644e1c765dc..fe9459593257 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -262,36 +262,6 @@ void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p, propagate_user_return_notify(prev_p, next_p); } -int sys_fork(struct pt_regs *regs) -{ - return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL); -} - -/* - * This is trivial, and on the face of it looks like it - * could equally well be done in user mode. - * - * Not so, for quite unobvious reasons - register pressure. - * In user mode vfork() cannot have a stack frame, and if - * done by calling the "clone()" system call directly, you - * do not have enough call-clobbered registers to hold all - * the information you need. - */ -int sys_vfork(struct pt_regs *regs) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->sp, regs, 0, - NULL, NULL); -} - -long -sys_clone(unsigned long clone_flags, unsigned long newsp, - void __user *parent_tid, void __user *child_tid, struct pt_regs *regs) -{ - if (!newsp) - newsp = regs->sp; - return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid); -} - /* * Idle related variables and functions */ |
