[PATCH -rt] include linux/delay.h in hwlat_detector

[PATCH -rt] include linux/delay.h in hwlat_detector

[Uwe Kleine-König]

This broke when compiling on i386 without X86_LOCAL_APIC because then
arch/x86/include/asm/smp.h doesn't include asm/apic.h which in turn includes
linux/delay.h.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jon Masters <jcm@redhat.com>
---

diff --git a/drivers/misc/hwlat_detector.c b/drivers/misc/hwlat_detector.c
index dbd9661..e02d8e1 100644
--- a/drivers/misc/hwlat_detector.c
+++ b/drivers/misc/hwlat_detector.c
@@ -49,6 +49,7 @@
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>
 #include <linux/version.h>
+#include <linux/delay.h>
 
 #define BUF_SIZE_DEFAULT	262144UL		/* 8K*(sizeof(entry)) */
 #define BUF_FLAGS		(RB_FL_OVERWRITE)	/* no block on full */
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Re: [PATCH -rt] include linux/delay.h in hwlat_detector

[Jon Masters]

On Sun, 2009-06-14 at 23:31 +0200, Uwe Kleine-König wrote:
> This broke when compiling on i386 without X86_LOCAL_APIC because then
> arch/x86/include/asm/smp.h doesn't include asm/apic.h which in turn includes
> linux/delay.h.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Jon Masters <jcm@redhat.com>
> ---

Oh, thanks. I will also look at better handling hotplug CPU just to make
Paul happy (probably just disable on hotplug as you'll need to restart
any testing then), though as he said, it's obvious one shouldn't be
removing CPUs at the same time as benchmarking.

Jon.


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