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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-22 23:10:08 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-29 00:01:08 -0500 |
| commit | e80d6661c3a5caa0cebec0853c6cb0db090fb506 (patch) | |
| tree | efc60762bbcdf8904f9779310ac60d0131ac9f3d /kernel/fork.c | |
| parent | 18c26c27ae0abe82253cb2e2363df465dbbb657e (diff) | |
| download | lwn-e80d6661c3a5caa0cebec0853c6cb0db090fb506.tar.gz lwn-e80d6661c3a5caa0cebec0853c6cb0db090fb506.zip | |
flagday: kill pt_regs argument of do_fork()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 0e68b6686acb..540730783433 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1527,8 +1527,6 @@ static inline void init_idle_pids(struct pid_link *links) struct task_struct * __cpuinit fork_idle(int cpu) { struct task_struct *task; - struct pt_regs regs; - task = copy_process(CLONE_VM, 0, 0, NULL, &init_struct_pid, 0); if (!IS_ERR(task)) { init_idle_pids(task->pids); @@ -1546,7 +1544,6 @@ struct task_struct * __cpuinit fork_idle(int cpu) */ long do_fork(unsigned long clone_flags, unsigned long stack_start, - struct pt_regs *regs, unsigned long stack_size, int __user *parent_tidptr, int __user *child_tidptr) @@ -1576,7 +1573,7 @@ long do_fork(unsigned long clone_flags, * requested, no event is reported; otherwise, report if the event * for the type of forking is enabled. */ - if (!(clone_flags & CLONE_UNTRACED) && likely(user_mode(regs))) { + if (!(clone_flags & CLONE_UNTRACED)) { if (clone_flags & CLONE_VFORK) trace = PTRACE_EVENT_VFORK; else if ((clone_flags & CSIGNAL) != SIGCHLD) @@ -1632,7 +1629,7 @@ long do_fork(unsigned long clone_flags, */ pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) { - return do_fork(flags|CLONE_VM|CLONE_UNTRACED, (unsigned long)fn, NULL, + return do_fork(flags|CLONE_VM|CLONE_UNTRACED, (unsigned long)fn, (unsigned long)arg, NULL, NULL); } #endif @@ -1641,7 +1638,7 @@ pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) SYSCALL_DEFINE0(fork) { #ifdef CONFIG_MMU - return do_fork(SIGCHLD, 0, current_pt_regs(), 0, NULL, NULL); + return do_fork(SIGCHLD, 0, 0, NULL, NULL); #else /* can not support in nommu mode */ return(-EINVAL); @@ -1652,7 +1649,7 @@ SYSCALL_DEFINE0(fork) #ifdef __ARCH_WANT_SYS_VFORK SYSCALL_DEFINE0(vfork) { - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, 0, current_pt_regs(), + return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, 0, 0, NULL, NULL); } #endif @@ -1675,7 +1672,7 @@ SYSCALL_DEFINE5(clone, unsigned long, clone_flags, unsigned long, newsp, int, tls_val) #endif { - return do_fork(clone_flags, newsp, current_pt_regs(), 0, + return do_fork(clone_flags, newsp, 0, parent_tidptr, child_tidptr); } #endif |