Module: xenomai-head
Branch: master
Commit: 69f72ec502879b0ddfac7e2c4b0a0699e5fdcfc4
URL:
http://git.xenomai.org/?p=xenomai-head.git;a=commit;h=69f72ec502879b0ddfac7e2c4b0a0699e5fdcfc4
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: Mon Jun 20 23:09:07 2011 +0200
nucleus: Improve shadow epilogue documentation
Leave a XENO_BUGON behind to underline that I-pipe has to ensure
interrupts were disabled on start of switch_to which ends in the
epilogue.
Reindent to whole block while at it.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
ksrc/nucleus/pod.c | 30 +++++++++++++++---------------
1 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/ksrc/nucleus/pod.c b/ksrc/nucleus/pod.c
index 9f75092..2ca83ff 100644
--- a/ksrc/nucleus/pod.c
+++ b/ksrc/nucleus/pod.c
@@ -2331,22 +2331,22 @@ reschedule:
#ifdef CONFIG_XENO_OPT_PERVASIVE
shadow_epilogue:
- {
- /* Shadow on entry and root without shadow extension on exit?
- Mmmm... This must be the user-space mate of a deleted
real-time
- shadow we've just rescheduled in the Linux domain to have it
- exit properly. Reap it now. */
- if (xnshadow_thrptd(current) == NULL) {
- splnone();
- xnshadow_exit();
- }
-
- /* Interrupts are disabled here, but it is what
- callers expect, specifically the reschedule of an
- IRQ handler that hit before we call xnpod_schedule in
- xnpod_suspend_thread when relaxing a thread. */
- return;
+ /* Shadow on entry and root without shadow extension on exit?
+ Mmmm... This must be the user-space mate of a deleted real-time
+ shadow we've just rescheduled in the Linux domain to have it
+ exit properly. Reap it now. */
+ if (xnshadow_thrptd(current) == NULL) {
+ splnone();
+ xnshadow_exit();
}
+
+ /* Interrupts must be disabled here (has to be done on entry of the
+ Linux [__]switch_to function), but it is what callers expect,
+ specifically the reschedule of an IRQ handler that hit before we
+ call xnpod_schedule in xnpod_suspend_thread when relaxing a
+ thread. */
+ XENO_BUGON(NUCLEUS, !irqs_disabled_hw());
+ return;
#endif /* CONFIG_XENO_OPT_PERVASIVE */
}
EXPORT_SYMBOL_GPL(__xnpod_schedule);
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