The loop count is always=1, remove the "while(true)" and fix the indent.
This patch doesn't make any functional difference. Signed-off-by: Lai Jiangshan <la...@cn.fujitsu.com> --- kernel/workqueue.c | 86 +++++++++++++++++++++++++--------------------------- 1 files changed, 41 insertions(+), 45 deletions(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index acd9e2f..5439fb6 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -2617,6 +2617,7 @@ void flush_workqueue(struct workqueue_struct *wq) .flush_color = -1, .done = COMPLETION_INITIALIZER_ONSTACK(this_flusher.done), }; + struct wq_flusher *next, *tmp; int next_color; lock_map_acquire(&wq->lockdep_map); @@ -2686,59 +2687,54 @@ void flush_workqueue(struct workqueue_struct *wq) BUG_ON(!list_empty(&this_flusher.list)); BUG_ON(wq->flush_color != this_flusher.flush_color); - while (true) { - struct wq_flusher *next, *tmp; - - /* complete all the flushers sharing the current flush color */ - list_for_each_entry_safe(next, tmp, &wq->flusher_queue, list) { - if (next->flush_color != wq->flush_color) - break; - list_del_init(&next->list); - complete(&next->done); - } + /* complete all the flushers sharing the current flush color */ + list_for_each_entry_safe(next, tmp, &wq->flusher_queue, list) { + if (next->flush_color != wq->flush_color) + break; + list_del_init(&next->list); + complete(&next->done); + } - BUG_ON(!list_empty(&wq->flusher_overflow) && - wq->flush_color != work_next_color(wq->work_color)); + BUG_ON(!list_empty(&wq->flusher_overflow) && + wq->flush_color != work_next_color(wq->work_color)); - /* this flush_color is finished, advance by one */ - wq->flush_color = work_next_color(wq->flush_color); + /* this flush_color is finished, advance by one */ + wq->flush_color = work_next_color(wq->flush_color); - /* one color has been freed, handle overflow queue */ - if (!list_empty(&wq->flusher_overflow)) { - /* - * Assign the same color to all overflowed - * flushers, advance work_color and append to - * flusher_queue. This is the start-to-wait - * phase for these overflowed flushers. - */ - list_for_each_entry(tmp, &wq->flusher_overflow, list) - tmp->flush_color = wq->work_color; + /* one color has been freed, handle overflow queue */ + if (!list_empty(&wq->flusher_overflow)) { + /* + * Assign the same color to all overflowed + * flushers, advance work_color and append to + * flusher_queue. This is the start-to-wait + * phase for these overflowed flushers. + */ + list_for_each_entry(tmp, &wq->flusher_overflow, list) + tmp->flush_color = wq->work_color; - wq->work_color = work_next_color(wq->work_color); + wq->work_color = work_next_color(wq->work_color); - list_splice_tail_init(&wq->flusher_overflow, - &wq->flusher_queue); - flush_workqueue_prep_cwqs(wq, -1, wq->work_color); - } + list_splice_tail_init(&wq->flusher_overflow, + &wq->flusher_queue); + flush_workqueue_prep_cwqs(wq, -1, wq->work_color); + } - if (list_empty(&wq->flusher_queue)) { - BUG_ON(wq->flush_color != wq->work_color); - wq->first_flusher = NULL; - break; - } + if (list_empty(&wq->flusher_queue)) { + BUG_ON(wq->flush_color != wq->work_color); + wq->first_flusher = NULL; + goto out_unlock; + } - /* - * Need to flush more colors. Make the next flusher - * the new first flusher and arm cwqs. - */ - BUG_ON(wq->flush_color == wq->work_color); - BUG_ON(wq->flush_color != next->flush_color); + /* + * Need to flush more colors. Make the next flusher + * the new first flusher and arm cwqs. + */ + BUG_ON(wq->flush_color == wq->work_color); + BUG_ON(wq->flush_color != next->flush_color); - list_del_init(&next->list); - wq->first_flusher = next; - flush_workqueue_prep_cwqs(wq, wq->flush_color, -1); - break; - } + list_del_init(&next->list); + wq->first_flusher = next; + flush_workqueue_prep_cwqs(wq, wq->flush_color, -1); out_unlock: mutex_unlock(&wq->flush_mutex); -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/