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-rw-r--r--fs/signalfd.c31
1 files changed, 22 insertions, 9 deletions
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 76bf9cc62074..d2187a813376 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -256,8 +256,8 @@ static const struct file_operations signalfd_fops = {
.llseek = noop_llseek,
};
-SYSCALL_DEFINE4(signalfd4, int, ufd, sigset_t __user *, user_mask,
- size_t, sizemask, int, flags)
+static int do_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask,
+ int flags)
{
sigset_t sigmask;
struct signalfd_ctx *ctx;
@@ -310,17 +310,22 @@ SYSCALL_DEFINE4(signalfd4, int, ufd, sigset_t __user *, user_mask,
return ufd;
}
+SYSCALL_DEFINE4(signalfd4, int, ufd, sigset_t __user *, user_mask,
+ size_t, sizemask, int, flags)
+{
+ return do_signalfd4(ufd, user_mask, sizemask, flags);
+}
+
SYSCALL_DEFINE3(signalfd, int, ufd, sigset_t __user *, user_mask,
size_t, sizemask)
{
- return sys_signalfd4(ufd, user_mask, sizemask, 0);
+ return do_signalfd4(ufd, user_mask, sizemask, 0);
}
#ifdef CONFIG_COMPAT
-COMPAT_SYSCALL_DEFINE4(signalfd4, int, ufd,
- const compat_sigset_t __user *,sigmask,
- compat_size_t, sigsetsize,
- int, flags)
+static long do_compat_signalfd4(int ufd,
+ const compat_sigset_t __user *sigmask,
+ compat_size_t sigsetsize, int flags)
{
sigset_t tmp;
sigset_t __user *ksigmask;
@@ -333,13 +338,21 @@ COMPAT_SYSCALL_DEFINE4(signalfd4, int, ufd,
if (copy_to_user(ksigmask, &tmp, sizeof(sigset_t)))
return -EFAULT;
- return sys_signalfd4(ufd, ksigmask, sizeof(sigset_t), flags);
+ return do_signalfd4(ufd, ksigmask, sizeof(sigset_t), flags);
+}
+
+COMPAT_SYSCALL_DEFINE4(signalfd4, int, ufd,
+ const compat_sigset_t __user *, sigmask,
+ compat_size_t, sigsetsize,
+ int, flags)
+{
+ return do_compat_signalfd4(ufd, sigmask, sigsetsize, flags);
}
COMPAT_SYSCALL_DEFINE3(signalfd, int, ufd,
const compat_sigset_t __user *,sigmask,
compat_size_t, sigsetsize)
{
- return compat_sys_signalfd4(ufd, sigmask, sigsetsize, 0);
+ return do_compat_signalfd4(ufd, sigmask, sigsetsize, 0);
}
#endif