Messages in this thread Patch in this message | | | Date | Wed, 6 Feb 2013 18:03:09 -0800 | From | Tejun Heo <> | Subject | [PATCH wq/for-3.9] workqueue: cosmetic update in try_to_grab_pending() |
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With the recent is-work-queued-here test simplification, the nested if() in try_to_grab_pending() can be collapsed. Collapse it.
This patch is purely cosmetic.
Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> --- A follow-up cleanup patch.
Thanks.
kernel/workqueue.c | 38 +++++++++++++++++--------------------- 1 file changed, 17 insertions(+), 21 deletions(-)
--- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1107,31 +1107,27 @@ static int try_to_grab_pending(struct wo * item is currently queued on that pool. */ cwq = get_work_cwq(work); - if (cwq) { - if (cwq->pool == pool) { - debug_work_deactivate(work); + if (cwq && cwq->pool == pool) { + debug_work_deactivate(work); - /* - * A delayed work item cannot be grabbed directly - * because it might have linked NO_COLOR work items - * which, if left on the delayed_list, will confuse - * cwq->nr_active management later on and cause - * stall. Make sure the work item is activated - * before grabbing. - */ - if (*work_data_bits(work) & WORK_STRUCT_DELAYED) - cwq_activate_delayed_work(work); + /* + * A delayed work item cannot be grabbed directly because + * it might have linked NO_COLOR work items which, if left + * on the delayed_list, will confuse cwq->nr_active + * management later on and cause stall. Make sure the work + * item is activated before grabbing. + */ + if (*work_data_bits(work) & WORK_STRUCT_DELAYED) + cwq_activate_delayed_work(work); - list_del_init(&work->entry); - cwq_dec_nr_in_flight(get_work_cwq(work), - get_work_color(work)); + list_del_init(&work->entry); + cwq_dec_nr_in_flight(get_work_cwq(work), get_work_color(work)); - /* work->data points to cwq iff queued, point to pool */ - set_work_pool_and_keep_pending(work, pool->id); + /* work->data points to cwq iff queued, point to pool */ + set_work_pool_and_keep_pending(work, pool->id); - spin_unlock(&pool->lock); - return 1; - } + spin_unlock(&pool->lock); + return 1; } spin_unlock(&pool->lock); fail:
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