arch/tile: support TIF_NOTIFY_RESUME
This support is required for CONFIG_KEYS, NFSv4 kernel DNS, etc.
The change is slightly more complex than the minimal thing, since
I took advantage of having to go into the assembly code to just
move a bunch of stuff into C code: specifically, the schedule(),
do_async_page_fault(), do_signal(), and single_step_once() support,
in addition to the TIF_NOTIFY_RESUME support.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
diff --git a/arch/tile/include/asm/processor.h b/arch/tile/include/asm/processor.h
index e688947..d6b43dd 100644
--- a/arch/tile/include/asm/processor.h
+++ b/arch/tile/include/asm/processor.h
@@ -215,6 +215,8 @@
extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+extern int do_work_pending(struct pt_regs *regs, u32 flags);
+
/*
* Return saved (kernel) PC of a blocked thread.