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authorAl Viro <viro@zeniv.linux.org.uk>2012-09-03 03:24:18 -0400
committerRichard Weinberger <richard@nod.at>2012-09-27 18:04:26 +0200
commit424597921ac1fc2a475a656ea5895cbe78f25d0d (patch)
treeddfc7706211c7f49d3367874af444e9eee3dc3bf
parent5e19997a742c7c8203be628a7a69babc3bcf01a4 (diff)
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um: take cleaning singlestep to start_thread()
... assuming it's needed to be done at all Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--arch/um/kernel/exec.c24
1 files changed, 5 insertions, 19 deletions
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 6cade9366364..4cab0c78684b 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -41,32 +41,18 @@ void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
{
PT_REGS_IP(regs) = eip;
PT_REGS_SP(regs) = esp;
-}
-EXPORT_SYMBOL(start_thread);
-
-static long execve1(const char *file,
- const char __user *const __user *argv,
- const char __user *const __user *env)
-{
- long error;
-
- error = do_execve(file, argv, env, &current->thread.regs);
- if (error == 0) {
- task_lock(current);
- current->ptrace &= ~PT_DTRACE;
+ current->ptrace &= ~PT_DTRACE;
#ifdef SUBARCH_EXECVE1
- SUBARCH_EXECVE1(&current->thread.regs.regs);
+ SUBARCH_EXECVE1(regs->regs);
#endif
- task_unlock(current);
- }
- return error;
}
+EXPORT_SYMBOL(start_thread);
long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
{
long err;
- err = execve1(file, argv, env);
+ err = do_execve(file, argv, env, &current->thread.regs);
if (!err)
UML_LONGJMP(current->thread.exec_buf, 1);
return err;
@@ -81,7 +67,7 @@ long sys_execve(const char __user *file, const char __user *const __user *argv,
filename = getname(file);
error = PTR_ERR(filename);
if (IS_ERR(filename)) goto out;
- error = execve1(filename, argv, env);
+ error = do_execve(filename, argv, env, &current->thread.regs);
putname(filename);
out:
return error;