From: Thomas Meyer <thomas@m3y3r.de>
To: user-mode-linux-devel <user-mode-linux-devel@lists.sourceforge.net>
Subject: [uml-devel] [PATCH v3 3/3] um: enable trace irqflags support
Date: Sun, 19 Oct 2014 17:14:13 +0200 [thread overview]
Message-ID: <1413731653.2991.24.camel@localhost.localdomain> (raw)
Add TRACE_IRQFLAGS_SUPPORT to UML.
This enables LOCKDEP_SUPPORT and TRACING_SUPPORT.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
---
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 87bc868..6a33c3a 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -28,10 +28,9 @@ config PCI
config PCMCIA
bool
-# Yet to do!
config TRACE_IRQFLAGS_SUPPORT
bool
- default n
+ default y
config LOCKDEP_SUPPORT
bool
diff --git a/arch/um/include/asm/irqflags.h b/arch/um/include/asm/irqflags.h
index c780d8a..c5b636e 100644
--- a/arch/um/include/asm/irqflags.h
+++ b/arch/um/include/asm/irqflags.h
@@ -34,9 +34,9 @@ static inline unsigned long arch_local_irq_save(void)
return flags;
}
-static inline bool arch_irqs_disabled(void)
+static inline int arch_irqs_disabled_flags(unsigned long flags)
{
- return arch_local_save_flags() == 0;
+ return flags == 0;
}
#endif
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index f1efeee..fc188d8 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -251,6 +251,9 @@ static struct notifier_block panic_exit_notifier = {
void uml_finishsetup(void)
{
+#ifdef CONFIG_LOCKDEP
+ lockdep_init();
+#endif
atomic_notifier_chain_register(&panic_notifier_list,
&panic_exit_notifier);
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next reply other threads:[~2014-10-19 15:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-19 15:14 Thomas Meyer [this message]
2014-10-20 7:15 ` [uml-devel] [PATCH v3 3/3] um: enable trace irqflags support Geert Uytterhoeven
2014-10-20 9:28 ` Daniel Walter
-- strict thread matches above, loose matches on Subject: below --
2014-10-20 11:18 Thomas Meyer
2014-10-20 12:13 ` Richard Weinberger
2014-10-20 16:14 ` Thomas Meyer
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