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authorAl Viro <viro@zeniv.linux.org.uk>2013-02-24 01:41:39 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-03-03 22:58:46 -0500
commit7d197ed4a68e76000070979563051e08bf6fc0aa (patch)
treead74a62a2808db635a954c571d8b9a59bb4cf43c /fs
parent2cf0966683430b6468f36ca20515a33ca7f2403c (diff)
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switch signalfd{,4}() to COMPAT_SYSCALL_DEFINE
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/compat.c30
-rw-r--r--fs/signalfd.c31
2 files changed, 31 insertions, 30 deletions
diff --git a/fs/compat.c b/fs/compat.c
index fe40fde29111..cc09312f9aed 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -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
diff --git a/fs/signalfd.c b/fs/signalfd.c
index b53486961735..424b7b65321f 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -30,6 +30,7 @@
#include <linux/signalfd.h>
#include <linux/syscalls.h>
#include <linux/proc_fs.h>
+#include <linux/compat.h>
void signalfd_cleanup(struct sighand_struct *sighand)
{
@@ -311,3 +312,33 @@ SYSCALL_DEFINE3(signalfd, int, ufd, sigset_t __user *, user_mask,
{
return sys_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)
+{
+ 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);
+}
+
+COMPAT_SYSCALL_DEFINE3(signalfd, int, ufd,
+ const compat_sigset_t __user *,sigmask,
+ compat_size_t, sigsetsize)
+{
+ return compat_sys_signalfd4(ufd, sigmask, sigsetsize, 0);
+}
+#endif