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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2008-02-01 17:45:13 +0100
committerIngo Molnar <mingo@elte.hu>2008-02-01 17:45:13 +0100
commit3588a085cd52ef080bf72df772378e1ba6bb292f (patch)
tree9c013c37431eb3a0d0da3ab14cbc4985600e82a2 /kernel
parent24e1c13c93cbdd05e4b7ea921c0050b036555adc (diff)
downloadlinaro-lsk-3588a085cd52ef080bf72df772378e1ba6bb292f.tar.gz
hrtimer: fix hrtimer_init_sleeper() users
this patch: commit 37bb6cb4097e29ffee970065b74499cbf10603a3 Author: Peter Zijlstra <a.p.zijlstra@chello.nl> Date: Fri Jan 25 21:08:32 2008 +0100 hrtimer: unlock hrtimer_wakeup Broke hrtimer_init_sleeper() users. It forgot to fix up the futex caller of this function to detect the failed queueing and messed up the do_nanosleep() caller in that it could leak a TASK_INTERRUPTIBLE state. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/futex.c2
-rw-r--r--kernel/hrtimer.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/kernel/futex.c b/kernel/futex.c
index db9824de8bf..0edd314798c 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1252,6 +1252,8 @@ static int futex_wait(u32 __user *uaddr, struct rw_semaphore *fshared,
t.timer.expires = *abs_time;
hrtimer_start(&t.timer, t.timer.expires, HRTIMER_MODE_ABS);
+ if (!hrtimer_active(&t.timer))
+ t.task = NULL;
/*
* the timer could have already expired, in which
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index bd5d6b5060b..1069998fe25 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1315,6 +1315,8 @@ static int __sched do_nanosleep(struct hrtimer_sleeper *t, enum hrtimer_mode mod
} while (t->task && !signal_pending(current));
+ __set_current_state(TASK_RUNNING);
+
return t->task == NULL;
}