alpha: take SIGPENDING/NOTIFY_RESUME loop into signal.c
Turn the slow side of work_pending into C function, including all
the looping. What we get out of that:
* we do _not_ call get_signal_to_deliver() with IRQs disabled
anymore
* no need to save/restore volatiles on each pass if there
turns to be more than one (unlikely, but still)
* all double-restart prevention is in C now.
* glue gets simpler.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index 802108b..0c30cce 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -390,15 +390,9 @@
bsr $1, do_switch_stack
mov $sp, $17
mov $5, $18
- mov $19, $9 /* save old syscall number */
- mov $20, $10 /* save old a3 */
- and $5, _TIF_SIGPENDING, $2
- cmovne $2, 0, $9 /* we don't want double syscall restarts */
- jsr $26, do_notify_resume
- mov $9, $19
- mov $10, $20
+ jsr $26, do_work_pending
bsr $1, undo_switch_stack
- br ret_to_user
+ br restore_all
.end work_pending
/*