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authorLinus Torvalds <torvalds@linux-foundation.org>2008-02-01 11:45:47 +1100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-02-01 11:45:47 +1100
commit75659ca0c10992dcb39258518368a0f6f56e935d (patch)
tree5d014ceb2f10158061a23d0d976f9a613d85e659 /kernel/sched.c
parentfbdde7bd274d74729954190f99afcb1e3d9bbfba (diff)
parent2dfe485a2c8afa54cb069fcf48476f6c90ea3fdf (diff)
Merge branch 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc
* 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc: (22 commits) Remove commented-out code copied from NFS NFS: Switch from intr mount option to TASK_KILLABLE Add wait_for_completion_killable Add wait_event_killable Add schedule_timeout_killable Use mutex_lock_killable in vfs_readdir Add mutex_lock_killable Use lock_page_killable Add lock_page_killable Add fatal_signal_pending Add TASK_WAKEKILL exit: Use task_is_* signal: Use task_is_* sched: Use task_contributes_to_load, TASK_ALL and TASK_NORMAL ptrace: Use task_is_* power: Use task_is_* wait: Use TASK_NORMAL proc/base.c: Use task_is_* proc/array.c: Use TASK_REPORT perfmon: Use task_is_* ... Fixed up conflicts in NFS/sunrpc manually..
Diffstat (limited to 'kernel/sched.c')
-rw-r--r--kernel/sched.c28
1 files changed, 18 insertions, 10 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 8355e007e02..9474b23c28b 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1350,7 +1350,7 @@ static int effective_prio(struct task_struct *p)
*/
static void activate_task(struct rq *rq, struct task_struct *p, int wakeup)
{
- if (p->state == TASK_UNINTERRUPTIBLE)
+ if (task_contributes_to_load(p))
rq->nr_uninterruptible--;
enqueue_task(rq, p, wakeup);
@@ -1362,7 +1362,7 @@ static void activate_task(struct rq *rq, struct task_struct *p, int wakeup)
*/
static void deactivate_task(struct rq *rq, struct task_struct *p, int sleep)
{
- if (p->state == TASK_UNINTERRUPTIBLE)
+ if (task_contributes_to_load(p))
rq->nr_uninterruptible++;
dequeue_task(rq, p, sleep);
@@ -1895,8 +1895,7 @@ out:
int fastcall wake_up_process(struct task_struct *p)
{
- return try_to_wake_up(p, TASK_STOPPED | TASK_TRACED |
- TASK_INTERRUPTIBLE | TASK_UNINTERRUPTIBLE, 0);
+ return try_to_wake_up(p, TASK_ALL, 0);
}
EXPORT_SYMBOL(wake_up_process);
@@ -4124,8 +4123,7 @@ void complete(struct completion *x)
spin_lock_irqsave(&x->wait.lock, flags);
x->done++;
- __wake_up_common(&x->wait, TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE,
- 1, 0, NULL);
+ __wake_up_common(&x->wait, TASK_NORMAL, 1, 0, NULL);
spin_unlock_irqrestore(&x->wait.lock, flags);
}
EXPORT_SYMBOL(complete);
@@ -4136,8 +4134,7 @@ void complete_all(struct completion *x)
spin_lock_irqsave(&x->wait.lock, flags);
x->done += UINT_MAX/2;
- __wake_up_common(&x->wait, TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE,
- 0, 0, NULL);
+ __wake_up_common(&x->wait, TASK_NORMAL, 0, 0, NULL);
spin_unlock_irqrestore(&x->wait.lock, flags);
}
EXPORT_SYMBOL(complete_all);
@@ -4151,8 +4148,10 @@ do_wait_for_common(struct completion *x, long timeout, int state)
wait.flags |= WQ_FLAG_EXCLUSIVE;
__add_wait_queue_tail(&x->wait, &wait);
do {
- if (state == TASK_INTERRUPTIBLE &&
- signal_pending(current)) {
+ if ((state == TASK_INTERRUPTIBLE &&
+ signal_pending(current)) ||
+ (state == TASK_KILLABLE &&
+ fatal_signal_pending(current))) {
__remove_wait_queue(&x->wait, &wait);
return -ERESTARTSYS;
}
@@ -4212,6 +4211,15 @@ wait_for_completion_interruptible_timeout(struct completion *x,
}
EXPORT_SYMBOL(wait_for_completion_interruptible_timeout);
+int __sched wait_for_completion_killable(struct completion *x)
+{
+ long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_KILLABLE);
+ if (t == -ERESTARTSYS)
+ return t;
+ return 0;
+}
+EXPORT_SYMBOL(wait_for_completion_killable);
+
static long __sched
sleep_on_common(wait_queue_head_t *q, int state, long timeout)
{