i8k: Inspiron E1705 fix

[pandora-kernel.git] / fs / eventpoll.c

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index d4255be..a415f42 100644 (file)
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -325,15 +325,14 @@ static void ep_poll_safewake(struct poll_safewake *psw, wait_queue_head_t *wq)
        int wake_nests = 0;
        unsigned long flags;
        struct task_struct *this_task = current;
-       struct list_head *lsthead = &psw->wake_task_list, *lnk;
+       struct list_head *lsthead = &psw->wake_task_list;
        struct wake_task_node *tncur;
        struct wake_task_node tnode;
 
        spin_lock_irqsave(&psw->lock, flags);
 
        /* Try to see if the current task is already inside this wakeup call */
-       list_for_each(lnk, lsthead) {
-               tncur = list_entry(lnk, struct wake_task_node, llink);
+       list_for_each_entry(tncur, lsthead, llink) {
 
                if (tncur->wq == wq ||
                    (tncur->task == this_task && ++wake_nests > EP_MAX_POLLWAKE_NESTS)) {
@@ -354,7 +353,7 @@ static void ep_poll_safewake(struct poll_safewake *psw, wait_queue_head_t *wq)
        spin_unlock_irqrestore(&psw->lock, flags);
 
        /* Do really wake up now */
-       wake_up(wq);
+       wake_up_nested(wq, 1 + wake_nests);
 
        /* Remove the current task from the list */
        spin_lock_irqsave(&psw->lock, flags);
@@ -463,24 +462,22 @@ static void ep_free(struct eventpoll *ep)
         * holding "epmutex" we can be sure that no file cleanup code will hit
         * us during this operation. So we can avoid the lock on "ep->lock".
         */
-       while ((rbp = rb_first(&ep->rbr)) != 0) {
+       while ((rbp = rb_first(&ep->rbr)) != NULL) {
                epi = rb_entry(rbp, struct epitem, rbn);
                ep_remove(ep, epi);
        }
 
        mutex_unlock(&epmutex);
-
        mutex_destroy(&ep->mtx);
+       kfree(ep);
 }
 
 static int ep_eventpoll_release(struct inode *inode, struct file *file)
 {
        struct eventpoll *ep = file->private_data;
 
-       if (ep) {
+       if (ep)
                ep_free(ep);
-               kfree(ep);
-       }
 
        DNPRINTK(3, (KERN_INFO "[%p] eventpoll: close() ep=%p\n", current, ep));
        return 0;
@@ -659,8 +656,7 @@ is_linked:
         * wait list.
         */
        if (waitqueue_active(&ep->wq))
-               __wake_up_locked(&ep->wq, TASK_UNINTERRUPTIBLE |
-                                TASK_INTERRUPTIBLE);
+               wake_up_locked(&ep->wq);
        if (waitqueue_active(&ep->poll_wait))
                pwake++;
 
@@ -783,7 +779,7 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
 
                /* Notify waiting tasks that events are available */
                if (waitqueue_active(&ep->wq))
-                       __wake_up_locked(&ep->wq, TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE);
+                       wake_up_locked(&ep->wq);
                if (waitqueue_active(&ep->poll_wait))
                        pwake++;
        }
@@ -857,8 +853,7 @@ static int ep_modify(struct eventpoll *ep, struct epitem *epi, struct epoll_even
 
                        /* Notify waiting tasks that events are available */
                        if (waitqueue_active(&ep->wq))
-                               __wake_up_locked(&ep->wq, TASK_UNINTERRUPTIBLE |
-                                                TASK_INTERRUPTIBLE);
+                               wake_up_locked(&ep->wq);
                        if (waitqueue_active(&ep->poll_wait))
                                pwake++;
                }
@@ -981,8 +976,7 @@ errxit:
                 * wait list (delayed after we release the lock).
                 */
                if (waitqueue_active(&ep->wq))
-                       __wake_up_locked(&ep->wq, TASK_UNINTERRUPTIBLE |
-                                        TASK_INTERRUPTIBLE);
+                       wake_up_locked(&ep->wq);
                if (waitqueue_active(&ep->poll_wait))
                        pwake++;
        }
@@ -1107,7 +1101,6 @@ asmlinkage long sys_epoll_create(int size)
 
 error_free:
        ep_free(ep);
-       kfree(ep);
 error_return:
        DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d) = %d\n",
                     current, size, error));
@@ -1327,12 +1320,12 @@ static int __init eventpoll_init(void)
        /* Allocates slab cache used to allocate "struct epitem" items */
        epi_cache = kmem_cache_create("eventpoll_epi", sizeof(struct epitem),
                        0, SLAB_HWCACHE_ALIGN|EPI_SLAB_DEBUG|SLAB_PANIC,
-                       NULL, NULL);
+                       NULL);
 
        /* Allocates slab cache used to allocate "struct eppoll_entry" */
        pwq_cache = kmem_cache_create("eventpoll_pwq",
                        sizeof(struct eppoll_entry), 0,
-                       EPI_SLAB_DEBUG|SLAB_PANIC, NULL, NULL);
+                       EPI_SLAB_DEBUG|SLAB_PANIC, NULL);
 
        return 0;
 }