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| author | Dmitry Torokhov <dtor@insightbb.com> | 2007-05-01 08:24:54 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2007-05-01 08:24:54 +0400 |
| commit | bc95f3669f5e6f63cf0b84fe4922c3c6dd4aa775 (patch) | |
| tree | 427fcf2a7287c16d4b5aa6cbf494d59579a6a8b1 /arch/s390/lib/delay.c | |
| parent | 3d29cdff999c37b3876082278a8134a0642a02cd (diff) | |
| parent | dc87c3985e9b442c60994308a96f887579addc39 (diff) | |
| download | linux-bc95f3669f5e6f63cf0b84fe4922c3c6dd4aa775.tar.xz | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/usb/input/Makefile
drivers/usb/input/gtco.c
Diffstat (limited to 'arch/s390/lib/delay.c')
| -rw-r--r-- | arch/s390/lib/delay.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c index 02854449b74b..70f2a862b670 100644 --- a/arch/s390/lib/delay.c +++ b/arch/s390/lib/delay.c @@ -15,6 +15,7 @@ #include <linux/delay.h> #include <linux/timex.h> #include <linux/irqflags.h> +#include <linux/interrupt.h> void __delay(unsigned long loops) { @@ -35,7 +36,11 @@ void __udelay(unsigned long usecs) { u64 end, time, jiffy_timer = 0; unsigned long flags, cr0, mask, dummy; + int irq_context; + irq_context = in_interrupt(); + if (!irq_context) + local_bh_disable(); local_irq_save(flags); if (raw_irqs_disabled_flags(flags)) { jiffy_timer = S390_lowcore.jiffy_timer; @@ -62,6 +67,8 @@ void __udelay(unsigned long usecs) __ctl_load(cr0, 0, 0); S390_lowcore.jiffy_timer = jiffy_timer; } + if (!irq_context) + _local_bh_enable(); set_clock_comparator(S390_lowcore.jiffy_timer); local_irq_restore(flags); } |