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s390: fold execve_tail() into start_thread(), convert to generic sys_execve()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-09-06 15:48:11 -04:00
parent 1f02ab4a23
commit 65f22a906e
9 changed files with 5 additions and 61 deletions
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26
arch/s390/kernel/compat_linux.c
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@@ -420,32 +420,6 @@ sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
return ret;
}
/*
* sys32_execve() executes a new program after the asm stub has set
* things up for us. This should basically do what I want it to.
*/
asmlinkage long sys32_execve(const char __user *name, compat_uptr_t __user *argv,
compat_uptr_t __user *envp)
{
struct pt_regs *regs = task_pt_regs(current);
char *filename;
long rc;
filename = getname(name);
rc = PTR_ERR(filename);
if (IS_ERR(filename))
return rc;
rc = compat_do_execve(filename, argv, envp, regs);
if (rc)
goto out;
current->thread.fp_regs.fpc=0;
asm volatile("sfpc %0,0" : : "d" (0));
rc = regs->gprs[2];
out:
putname(filename);
return rc;
}
asmlinkage long sys32_pread64(unsigned int fd, char __user *ubuf,
size_t count, u32 poshi, u32 poslo)
{