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Message-ID: <4551962.LvFx2qVVIh@kreacher> Date: Wed, 27 Dec 2023 21:37:02 +0100 From: "Rafael J. Wysocki" <rjw@...ysocki.net> To: Greg KH <gregkh@...uxfoundation.org>, linux-pm@...r.kernel.org Cc: Youngmin Nam <youngmin.nam@...sung.com>, rafael@...nel.org, linux-kernel@...r.kernel.org, d7271.choe@...sung.com, janghyuck.kim@...sung.com, hyesoo.yu@...sung.com, Alan Stern <stern@...land.harvard.edu>, Ulf Hansson <ulf.hansson@...aro.org> Subject: [PATCH v1 1/3] async: Split async_schedule_node_domain() From: Rafael J. Wysocki <rafael.j.wysocki@...el.com> In preparation for subsequent changes, split async_schedule_node_domain() in two pieces so as to allow the bottom part of it to be called from a somewhat different code path. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com> --- kernel/async.c | 56 ++++++++++++++++++++++++++++++++++---------------------- 1 file changed, 34 insertions(+), 22 deletions(-) Index: linux-pm/kernel/async.c =================================================================== --- linux-pm.orig/kernel/async.c +++ linux-pm/kernel/async.c @@ -145,6 +145,39 @@ static void async_run_entry_fn(struct wo wake_up(&async_done); } +static async_cookie_t __async_schedule_node_domain(async_func_t func, + void *data, int node, + struct async_domain *domain, + struct async_entry *entry) +{ + async_cookie_t newcookie; + unsigned long flags; + + INIT_LIST_HEAD(&entry->domain_list); + INIT_LIST_HEAD(&entry->global_list); + INIT_WORK(&entry->work, async_run_entry_fn); + entry->func = func; + entry->data = data; + entry->domain = domain; + + spin_lock_irqsave(&async_lock, flags); + + /* allocate cookie and queue */ + newcookie = entry->cookie = next_cookie++; + + list_add_tail(&entry->domain_list, &domain->pending); + if (domain->registered) + list_add_tail(&entry->global_list, &async_global_pending); + + atomic_inc(&entry_count); + spin_unlock_irqrestore(&async_lock, flags); + + /* schedule for execution */ + queue_work_node(node, system_unbound_wq, &entry->work); + + return newcookie; +} + /** * async_schedule_node_domain - NUMA specific version of async_schedule_domain * @func: function to execute asynchronously @@ -186,29 +219,8 @@ async_cookie_t async_schedule_node_domai func(data, newcookie); return newcookie; } - INIT_LIST_HEAD(&entry->domain_list); - INIT_LIST_HEAD(&entry->global_list); - INIT_WORK(&entry->work, async_run_entry_fn); - entry->func = func; - entry->data = data; - entry->domain = domain; - - spin_lock_irqsave(&async_lock, flags); - /* allocate cookie and queue */ - newcookie = entry->cookie = next_cookie++; - - list_add_tail(&entry->domain_list, &domain->pending); - if (domain->registered) - list_add_tail(&entry->global_list, &async_global_pending); - - atomic_inc(&entry_count); - spin_unlock_irqrestore(&async_lock, flags); - - /* schedule for execution */ - queue_work_node(node, system_unbound_wq, &entry->work); - - return newcookie; + return __async_schedule_node_domain(func, data, node, domain, entry); } EXPORT_SYMBOL_GPL(async_schedule_node_domain);
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