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authorIngo Molnar <mingo@elte.hu>2009-07-03 08:30:37 -0500
committerClark Williams <williams@redhat.com>2012-03-06 10:17:33 -0600
commit9d71320bfcc006c7972718a92548968d58c81620 (patch)
tree66d5dee9acb0ed03bb7d02aa1614e4903c396052 /include/linux/sched.h
parent94a0305da35814da5dffb25317db7847345204a5 (diff)
mm: Prepare decoupling the page fault disabling logic
Add a pagefault_disabled variable to task_struct to allow decoupling the pagefault-disabled logic from the preempt count. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ed2b9f95c8ff..bce86f9cf6b7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1435,6 +1435,7 @@ struct task_struct {
/* mutex deadlock detection */
struct mutex_waiter *blocked_on;
#endif
+ int pagefault_disabled;
#ifdef CONFIG_TRACE_IRQFLAGS
unsigned int irq_events;
unsigned long hardirq_enable_ip;