From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f72.google.com (mail-wm0-f72.google.com [74.125.82.72]) by kanga.kvack.org (Postfix) with ESMTP id 8EEFE6B000D for ; Tue, 17 Jul 2018 06:56:55 -0400 (EDT) Received: by mail-wm0-f72.google.com with SMTP id h18-v6so373305wmb.8 for ; Tue, 17 Jul 2018 03:56:55 -0700 (PDT) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id j9-v6sor328256wrq.66.2018.07.17.03.56.54 for (Google Transport Security); Tue, 17 Jul 2018 03:56:54 -0700 (PDT) From: osalvador@techadventures.net Subject: [RFC PATCH 1/3] mm: Make free_area_init_core more readable by moving the ifdefs Date: Tue, 17 Jul 2018 12:56:20 +0200 Message-Id: <20180717105622.12410-2-osalvador@techadventures.net> In-Reply-To: <20180717105622.12410-1-osalvador@techadventures.net> References: <20180717105622.12410-1-osalvador@techadventures.net> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: pasha.tatashin@oracle.com, mhocko@suse.com, vbabka@suse.cz, akpm@linux-foundation.org, aaron.lu@intel.com, iamjoonsoo.kim@lge.com, linux-kernel@vger.kernel.org, Oscar Salvador From: Oscar Salvador Moving the #ifdefery out of the function makes it easier to follow. Signed-off-by: Oscar Salvador --- mm/page_alloc.c | 50 +++++++++++++++++++++++++++++++++++++------------- 1 file changed, 37 insertions(+), 13 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e357189cd24a..8a73305f7c55 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6206,6 +6206,37 @@ static unsigned long __paginginit calc_memmap_size(unsigned long spanned_pages, return PAGE_ALIGN(pages * sizeof(struct page)) >> PAGE_SHIFT; } +#ifdef CONFIG_NUMA_BALANCING +static void pgdat_init_numabalancing(struct pglist_data *pgdat) +{ + spin_lock_init(&pgdat->numabalancing_migrate_lock); + pgdat->numabalancing_migrate_nr_pages = 0; + pgdat->numabalancing_migrate_next_window = jiffies; +} +#else +static void pgdat_init_numabalancing(struct pglist_data *pgdat) {} +#endif + +#ifdef CONFIG_TRANSPARENT_HUGEPAGE +static void pgdat_init_split_queue(struct pglist_data *pgdat) +{ + spin_lock_init(&pgdat->split_queue_lock); + INIT_LIST_HEAD(&pgdat->split_queue); + pgdat->split_queue_len = 0; +} +#else +static void pgdat_init_split_queue(struct pglist_data *pgdat) {} +#endif + +#ifdef CONFIG_COMPACTION +static void pgdat_init_kcompactd(struct pglist_data *pgdat) +{ + init_waitqueue_head(&pgdat->kcompactd_wait); +} +#else +static void pgdat_init_kcompactd(struct pglist_data *pgdat) {} +#endif + /* * Set up the zone data structures: * - mark all pages reserved @@ -6220,21 +6251,14 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat) int nid = pgdat->node_id; pgdat_resize_init(pgdat); -#ifdef CONFIG_NUMA_BALANCING - spin_lock_init(&pgdat->numabalancing_migrate_lock); - pgdat->numabalancing_migrate_nr_pages = 0; - pgdat->numabalancing_migrate_next_window = jiffies; -#endif -#ifdef CONFIG_TRANSPARENT_HUGEPAGE - spin_lock_init(&pgdat->split_queue_lock); - INIT_LIST_HEAD(&pgdat->split_queue); - pgdat->split_queue_len = 0; -#endif + + pgdat_init_numabalancing(pgdat); + pgdat_init_split_queue(pgdat); + pgdat_init_kcompactd(pgdat); + init_waitqueue_head(&pgdat->kswapd_wait); init_waitqueue_head(&pgdat->pfmemalloc_wait); -#ifdef CONFIG_COMPACTION - init_waitqueue_head(&pgdat->kcompactd_wait); -#endif + pgdat_page_ext_init(pgdat); spin_lock_init(&pgdat->lru_lock); lruvec_init(node_lruvec(pgdat)); -- 2.13.6