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From: Hugh Dickins <hughd@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Ackerley Tng <ackerleytng@google.com>,
	 Alexander Viro <viro@zeniv.linux.org.uk>,
	Alexandre Ghiti <alex@ghiti.fr>,
	 Baolin Wang <baolin.wang@linux.alibaba.com>,
	 Barry Song <baohua@kernel.org>,
	Binbin Wu <binbin.wu@linux.intel.com>,
	 Christian Brauner <brauner@kernel.org>,
	Christoph Hellwig <hch@lst.de>,
	 Christoph Lameter <cl@gentwo.org>,
	 Claudio Imbrenda <imbrenda@linux.ibm.com>,
	 David Hildenbrand <david@kernel.org>,
	JP Kobryn <jp.kobryn@linux.dev>,  Jan Kara <jack@suse.cz>,
	Jens Axboe <axboe@kernel.dk>,
	 Johannes Weiner <hannes@cmpxchg.org>,
	Kairui Song <ryncsn@gmail.com>,  Kiryl Shutsemau <kas@kernel.org>,
	Lance Yang <lance.yang@linux.dev>,
	 Leonardo Bras <leobras.c@gmail.com>,
	Lorenzo Stoakes <ljs@kernel.org>,
	 Marcelo Tosatti <mtosatti@redhat.com>,
	 Matthew Wilcox <willy@infradead.org>,
	 Mel Gorman <mgorman@techsingularity.net>,
	 Miaohe Lin <linmiaohe@huawei.com>,
	Michal Hocko <mhocko@suse.com>,  Minchan Kim <minchan@kernel.org>,
	Muchun Song <muchun.song@linux.dev>,
	 Oscar Salvador <osalvador@suse.de>,
	Peter Zijlstra <peterz@infradead.org>,
	 Qi Zheng <qi.zheng@linux.dev>, Rik van Riel <riel@surriel.com>,
	 Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	 Shakeel Butt <shakeel.butt@linux.dev>,
	 Suren Baghdasaryan <surenb@google.com>,
	 Vlastimil Babka <vbabka@kernel.org>,
	 Yang Shi <yang@os.amperecomputing.com>,
	Yu Zhao <yuzhao@google.com>,  Zach O'Keefe <zokeefe@google.com>,
	Zi Yan <ziy@nvidia.com>,
	 linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	 linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH v2 25/26] mm/fbatch: move lru_add_drain_all() declaration to mm/internal.h
Date: Wed, 9 Sep 2026 03:35:42 -0700 (PDT)	[thread overview]
Message-ID: <26b1d94a-497a-fd6d-e700-342ccb65c045@google.com> (raw)
In-Reply-To: <e28f9a94-4339-f8ac-8301-6be3c9b5b7ce@google.com>

Only mm now uses lru_add_drain_all(), in forced reclaim and in memory
hotremoval: help to keep it that way by moving its declaration alongside
that of lru_add_drain() in mm/internal.h.

Signed-off-by: Hugh Dickins <hughd@google.com>
---
 include/linux/swap.h | 1 -
 mm/internal.h        | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/swap.h b/include/linux/swap.h
index 423d9b669149..dfa6314c0cee 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -300,7 +300,6 @@ static inline void folio_add_lru(struct folio *folio)
 	__folio_add_lru(folio, false);
 }
 void folio_mark_accessed(struct folio *folio);
-void lru_add_drain_all(void);
 
 enum lru_cache_drained {
 	LRU_CACHE_NOT_DRAINED,
diff --git a/mm/internal.h b/mm/internal.h
index d9930b752153..f28fd310455c 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -54,6 +54,7 @@ static inline bool folio_may_be_lru_cached(const struct folio *folio)
 }
 
 void lru_add_drain(void);
+void lru_add_drain_all(void);
 void lru_add_drain_cpu(int cpu);
 void lru_add_drain_cpu_zone(struct zone *zone);
 void folio_deactivate(struct folio *folio);
-- 
2.51.0


  parent reply	other threads:[~2026-09-09 10:35 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-09  9:39 [PATCH v2 00/26] mm/fbatch: drain lru_add_drain() and _all() Hugh Dickins
2026-09-09  9:42 ` [PATCH v2 01/26] mm/fbatch: remove !CONFIG_SMP special case of folio_activate() Hugh Dickins
2026-09-09  9:44 ` [PATCH v2 02/26] mm/fbatch: allow folios_put_refs() to skip xa_is_value() entries Hugh Dickins
2026-09-09  9:46 ` [PATCH v2 03/26] mm/fbatch: temporarily disable lazyfree and mlock+munlock batching Hugh Dickins
2026-09-09  9:49 ` [PATCH v2 04/26] mm/fbatch: lru bit set, no extra ref, while folio on per-cpu fbatch Hugh Dickins
2026-09-09 12:25   ` Vlastimil Babka (SUSE)
2026-09-09  9:51 ` [PATCH v2 05/26] mm/fbatch: lru_add_del_folio()+folio_add_lru() after clear_lru() Hugh Dickins
2026-09-09 15:04   ` Vlastimil Babka (SUSE)
2026-09-09  9:53 ` [PATCH v2 06/26] mm/fbatch: fbatch_drain_lazyfree(onstack fbatch) before ptl unlock Hugh Dickins
2026-09-09 21:02   ` Vlastimil Babka (SUSE)
2026-09-09  9:55 ` [PATCH v2 07/26] mm/fbatch: LRU_NEXT_ACTIVATE bit to optimize folio_activate() Hugh Dickins
2026-09-10 12:01   ` Vlastimil Babka (SUSE)
2026-09-10 16:42   ` Kiryl Shutsemau
2026-09-09  9:57 ` [PATCH v2 08/26] mm/fbatch: replace mlock_new_folio() by __folio_add_lru(,mlockit) Hugh Dickins
2026-09-10 17:47   ` Vlastimil Babka (SUSE)
2026-09-09  9:59 ` [PATCH v2 09/26] mm/fbatch: restore mlock+munlock batching, without extra ref Hugh Dickins
2026-09-09 10:01 ` [PATCH v2 10/26] mm/fbatch: remove several uses of mlock_drain_local() Hugh Dickins
2026-09-09 10:03 ` [PATCH v2 11/26] mm/fbatch: remove migration's PAGE_WAS_MLOCKED lru_add_drain() Hugh Dickins
2026-09-09 10:05 ` [PATCH v2 12/26] mm/fbatch: remove percpu_pvec_drained and folios_put() Hugh Dickins
2026-09-09 10:08 ` [PATCH v2 13/26] mm/fbatch: no lru_add_drain to collect_longterm_unpinnable_folios() Hugh Dickins
2026-09-09 10:10 ` [PATCH v2 14/26] mm/fbatch: no lru_add_drain() nor _all() for memfd_wait_for_pins() Hugh Dickins
2026-09-09 10:12 ` [PATCH v2 15/26] mm/fbatch: remove shake_folio() shake_page() from memory-failure Hugh Dickins
2026-09-09 10:14 ` [PATCH v2 16/26] mm/fbatch: remove lru_cache_disable() from NUMA folio migration Hugh Dickins
2026-09-09 10:16 ` [PATCH v2 17/26] mm/fbatch: no lru_cache_disable() in __alloc_contig_migrate_range() Hugh Dickins
2026-09-09 10:18 ` [PATCH v2 18/26] mm/fbatch: remove lru_add_drain() and _all() calls from various Hugh Dickins
2026-09-09 10:20 ` [PATCH v2 19/26] mm/fbatch: vm/stat_refresh include lru_add_drain() on each cpu Hugh Dickins
2026-09-09 10:23 ` [PATCH v2 20/26] s390/fbatch: no lru_add_drain_all() in s390_wiggle_split_folio() Hugh Dickins
2026-09-09 10:25 ` [PATCH v2 21/26] block/fbatch: no lru_add_drain_all() in invalidate_bdev() Hugh Dickins
2026-09-09 10:27 ` [PATCH v2 22/26] fs/fbatch: drop_caches invalidate_bh_lrus() not lru_add_drain_all() Hugh Dickins
2026-09-09 10:30 ` [PATCH v2 23/26] fs,mm/fbatch: use invalidate_bh_lrus() not invalidate_bh_lrus_cpu() Hugh Dickins
2026-09-09 10:33 ` [PATCH v2 24/26] fs,mm/fbatch: lru_cache_disable() keep off buffer_head lrus only Hugh Dickins
2026-09-09 10:35 ` Hugh Dickins [this message]
2026-09-09 10:37 ` [PATCH v2 26/26] mm/fbatch: drop reference inside the loop when draining Hugh Dickins
2026-09-09 10:41 ` [PATCH v2 27/26] mm/fbatch: paranoid folio vmstats in folio_batch_move_lru() Hugh Dickins

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