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    SubjectPATCH [2/5] fs/eventpoll.c: use list_for_each_entry() instead of list_for_each()
    fs/eventpoll.c: use list_for_each_entry() instead of list_for_each()
    in ep_poll_safewake()

    Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>

    --

    diff --git a/fs/eventpoll.c b/fs/eventpoll.c
    index 0b73cd4..fada1f9 100644
    --- 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)) {
    --
    Matthias Kaehlcke
    Linux Application Developer
    Barcelona


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