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switch signalfd{,4}() to COMPAT_SYSCALL_DEFINE

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Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2013-02-24 01:41:39 -05:00
commit 7d197ed4a6
4 changed files with 33 additions and 45 deletions
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30
fs/compat.c
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@ -1707,36 +1707,6 @@ asmlinkage long compat_sys_epoll_pwait(int epfd,
#endif /* CONFIG_EPOLL */
#ifdef CONFIG_SIGNALFD
asmlinkage long compat_sys_signalfd4(int ufd,
const compat_sigset_t __user *sigmask,
compat_size_t sigsetsize, int flags)
{
compat_sigset_t ss32;
sigset_t tmp;
sigset_t __user *ksigmask;
if (sigsetsize != sizeof(compat_sigset_t))
return -EINVAL;
if (copy_from_user(&ss32, sigmask, sizeof(ss32)))
return -EFAULT;
sigset_from_compat(&tmp, &ss32);
ksigmask = compat_alloc_user_space(sizeof(sigset_t));
if (copy_to_user(ksigmask, &tmp, sizeof(sigset_t)))
return -EFAULT;
return sys_signalfd4(ufd, ksigmask, sizeof(sigset_t), flags);
}
asmlinkage long compat_sys_signalfd(int ufd,
const compat_sigset_t __user *sigmask,
compat_size_t sigsetsize)
{
return compat_sys_signalfd4(ufd, sigmask, sigsetsize, 0);
}
#endif /* CONFIG_SIGNALFD */
#ifdef CONFIG_FHANDLE
/*
* Exactly like fs/open.c:sys_open_by_handle_at(), except that it