aboutsummaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorXiaotian Feng <dfeng@redhat.com>2009-12-10 19:56:45 +0800
committerLen Brown <len.brown@intel.com>2010-01-16 01:35:36 -0500
commitc084ca704a3661bf77690a05bc6bd2c305d87c34 (patch)
tree0d9bc73abcb2fa5cc904162cc3c599555fe121eb /include
parent22763c5cf3690a681551162c15d34d935308c8d7 (diff)
downloadlinux-linaro-android-c084ca704a3661bf77690a05bc6bd2c305d87c34.tar.gz
ACPI: don't cond_resched if irq is disabled
commit 8bd108d adds preemption point after each opcode parse, then a sleeping function called from invalid context bug was founded during suspend/resume stage. this was fixed in commit abe1dfa by don't cond_resched when irq_disabled. But recent commit 138d156 changes the behaviour to don't cond_resched when in_atomic. This makes the sleeping function called from invalid context bug happen again, which is reported in http://lkml.org/lkml/2009/12/1/371. This patch also fixes http://bugzilla.kernel.org/show_bug.cgi?id=14483 Reported-and-bisected-by: Larry Finger <Larry.Finger@lwfinger.net> Reported-and-bisected-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/acpi/platform/aclinux.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 9d7febde10a..09469971472 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -152,7 +152,7 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
#include <linux/hardirq.h>
#define ACPI_PREEMPTION_POINT() \
do { \
- if (!in_atomic_preempt_off()) \
+ if (!in_atomic_preempt_off() && !irqs_disabled()) \
cond_resched(); \
} while (0)