Messages in this thread Patch in this message | | | From | Lai Jiangshan <> | Subject | [PATCH V2 10/15] workqueue: avoid unneeded calls to get_work_cwq() | Date | Tue, 19 Feb 2013 00:12:11 +0800 |
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Use already-known "cwq" instead of get_work_cwq(work) in try_to_grab_pending() and cwq_activate_first_delayed().
It avoid unneeded calls to get_work_cwq() which becomes not so light-way in later patches.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> --- kernel/workqueue.c | 11 +++++------ 1 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index e14a03e..7ac6824 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1012,10 +1012,9 @@ static void move_linked_works(struct work_struct *work, struct list_head *head, *nextp = n; } -static void cwq_activate_delayed_work(struct work_struct *work) +static void cwq_activate_delayed_work(struct work_struct *work, + struct cpu_workqueue_struct *cwq) { - struct cpu_workqueue_struct *cwq = get_work_cwq(work); - trace_workqueue_activate_work(work); move_linked_works(work, &cwq->pool->worklist, NULL); __clear_bit(WORK_STRUCT_DELAYED_BIT, work_data_bits(work)); @@ -1027,7 +1026,7 @@ static void cwq_activate_first_delayed(struct cpu_workqueue_struct *cwq) struct work_struct *work = list_first_entry(&cwq->delayed_works, struct work_struct, entry); - cwq_activate_delayed_work(work); + cwq_activate_delayed_work(work, cwq); } /** @@ -1147,10 +1146,10 @@ static int try_to_grab_pending(struct work_struct *work, bool is_dwork, * item is activated before grabbing. */ if (*work_data_bits(work) & WORK_STRUCT_DELAYED) - cwq_activate_delayed_work(work); + cwq_activate_delayed_work(work, cwq); list_del_init(&work->entry); - cwq_dec_nr_in_flight(get_work_cwq(work), get_work_color(work)); + cwq_dec_nr_in_flight(cwq, get_work_color(work)); /* work is dequeued, work->data points to pool iff running */ if (worker) -- 1.7.7.6
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