On Thu, Oct 2, 2014 at 8:56 AM, Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx> wrote:
--- linux.orig/arch/m68k/atari/stdma.c 2014-10-02 16:55:28.000000000 +1000
+++ linux/arch/m68k/atari/stdma.c 2014-10-02 16:56:20.000000000 +1000
-int stdma_others_waiting(void)
+int stdma_is_locked_by(irq_handler_t handler)
{
- return waitqueue_active(&stdma_wait);
+ unsigned long flags;
+
+ local_irq_save(flags);
+ if (stdma_locked && (stdma_isr == handler)) {
+ local_irq_restore(flags);
+ return 1;
+ }
+ local_irq_restore(flags);
+ return 0;
}
This can be written shorter:
int stdma_is_locked_by(irq_handler_t handler)
{
unsigned long flags;
int res;
local_irq_save(flags);
res = stdma_locked && (stdma_isr == handler);
local_irq_restore(flags);
return res;
}
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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