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authorFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2011-12-18 02:00:49 +0400
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2011-12-18 02:00:49 +0400
commita4581b35e1bc80becf240238bc787a5ec2727db0 (patch)
tree34cbf36101639403a766e74deb36e7015d871b39 /arch/s390/mm/fault.c
parentf940b88d3a57594289455ea99a93a8ddc5c4af06 (diff)
parent384703b8e6cd4c8ef08512e596024e028c91c339 (diff)
downloadlinux-a4581b35e1bc80becf240238bc787a5ec2727db0.tar.xz
Merge commit 'v3.2-rc6' into fbdev-next
Diffstat (limited to 'arch/s390/mm/fault.c')
-rw-r--r--arch/s390/mm/fault.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 1766def5bc3f..a9a301866b3c 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -587,8 +587,13 @@ static void pfault_interrupt(unsigned int ext_int_code,
} else {
/* Completion interrupt was faster than initial
* interrupt. Set pfault_wait to -1 so the initial
- * interrupt doesn't put the task to sleep. */
- tsk->thread.pfault_wait = -1;
+ * interrupt doesn't put the task to sleep.
+ * If the task is not running, ignore the completion
+ * interrupt since it must be a leftover of a PFAULT
+ * CANCEL operation which didn't remove all pending
+ * completion interrupts. */
+ if (tsk->state == TASK_RUNNING)
+ tsk->thread.pfault_wait = -1;
}
put_task_struct(tsk);
} else {