consolidate rt_sigsuspend()
* pull compat version alongside with the native one
* make little-endian compat variant just call the native
* don't bother with separate conditional for compat (both native and
compat are going to become unconditional very soon).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/kernel/compat.c b/kernel/compat.c
index adf7646..0c07d43 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -1067,23 +1067,6 @@
#endif /* __ARCH_WANT_COMPAT_SYS_TIME */
-#ifdef __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
-asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset, compat_size_t sigsetsize)
-{
- sigset_t newset;
- compat_sigset_t newset32;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
-
- if (copy_from_user(&newset32, unewset, sizeof(compat_sigset_t)))
- return -EFAULT;
- sigset_from_compat(&newset, &newset32);
- return sigsuspend(&newset);
-}
-#endif /* __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND */
-
asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp)
{
struct timex txc;
diff --git a/kernel/signal.c b/kernel/signal.c
index 00cd1ce..4a0934e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3352,7 +3352,29 @@
return -EFAULT;
return sigsuspend(&newset);
}
-#endif /* __ARCH_WANT_SYS_RT_SIGSUSPEND */
+
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE2(rt_sigsuspend, compat_sigset_t __user *, unewset, compat_size_t, sigsetsize)
+{
+#ifdef __BIG_ENDIAN
+ sigset_t newset;
+ compat_sigset_t newset32;
+
+ /* XXX: Don't preclude handling different sized sigset_t's. */
+ if (sigsetsize != sizeof(sigset_t))
+ return -EINVAL;
+
+ if (copy_from_user(&newset32, unewset, sizeof(compat_sigset_t)))
+ return -EFAULT;
+ sigset_from_compat(&newset, &newset32);
+ return sigsuspend(&newset);
+#else
+ /* on little-endian bitmaps don't care about granularity */
+ return sys_rt_sigsuspend((sigset_t __user *)unewset, sigsetsize);
+#endif
+}
+#endif
+#endif
__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma)
{