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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1776158172; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ubfySRhL7H2ALfoVfoAbTG+vWRfRjBu73p+puM1I0vE=; b=xKD7OtXcIsrwj1A0b0Itu601MKl/5NJ+Z0FGvgmv1pfr3euBdkog0LGDvJBe4hIkNDVTku mgSwNGLQjVUnIbnhuBdwF9V3qaKkp+SUraT5C3qywZ9fdaiGetCOGQPw5x4h6xn9mE+JFw 1PF6B8WPGUWQtCNRt1t5U+XM/AdVoLM= From: Ye Liu To: Trond Myklebust , Anna Schumaker , Andrew Morton , Vlastimil Babka , David Hildenbrand , Lorenzo Stoakes , "Matthew Wilcox (Oracle)" , Chris Li , Kairui Song Cc: Ye Liu , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , Jason Gunthorpe , John Hubbard , Peter Xu , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Kemeng Shi , Nhat Pham , Baoquan He , Youngjun Park , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 1/4] mm/vmstat: use node_stat_add_folio/sub_folio for folio_nr_pages operations Date: Tue, 14 Apr 2026 17:15:18 +0800 Message-ID: <20260414091527.2970844-2-ye.liu@linux.dev> In-Reply-To: <20260414091527.2970844-1-ye.liu@linux.dev> References: <20260414091527.2970844-1-ye.liu@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspamd-Queue-Id: 4AF261A0011 X-Stat-Signature: t7y13tha83gnimdstoxpszeydfz7hmx9 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1776158174-131894 X-HE-Meta: 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 hcE/2uOq D3v8UDLfKl5ATJ9oqmCDMOBQlBat2x233o/7lRepbNja/WyYjyfTYfDjEC9yPKq5qTxPcQ0rAK2jJykmOE1m/NvHZ7gJqaWU4QrCU3TBPkt2iplUQVCIoieyz58FthxQRN+fICAVPjtJd25lLn2j5HMRWrUpkul5W+1EK7+JmNzyqK58zh/sL2d4XaH+oB8EKEeaY6P1T8sGnOafhQtksBvZdQAbBFcF7OjPV/J+Q4zg7we9RQMv3g7V1ySFoSnwLic5mSwBcY//eytTB5OtICPPk/sN/uhMl/e98XCJO3Ya10qn0rva+IimFa8mifGJzEYyFia96EbihrkE0Ew7fuivhVRrbjOw56UwD Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Ye Liu Replace node_stat_mod_folio() calls that pass folio_nr_pages(folio) or -folio_nr_pages(folio) as the third argument with the more concise node_stat_add_folio() and node_stat_sub_folio() functions respectively. This makes the code more readable and reduces the number of arguments passed to these functions. Signed-off-by: Ye Liu --- fs/nfs/internal.h | 2 +- fs/nfs/write.c | 2 +- mm/compaction.c | 5 ++--- mm/gup.c | 5 ++--- mm/khugepaged.c | 10 ++++------ mm/mempolicy.c | 5 ++--- mm/migrate.c | 12 +++++------- mm/page-writeback.c | 4 ++-- mm/swap_state.c | 4 ++-- 9 files changed, 21 insertions(+), 28 deletions(-) diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index fc5456377160..f5c52a2d2a1f 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -858,7 +858,7 @@ static inline void nfs_folio_mark_unstable(struct folio *folio, /* This page is really still in write-back - just that the * writeback is happening on the server now. */ - node_stat_mod_folio(folio, NR_WRITEBACK, nr); + node_stat_add_folio(folio, NR_WRITEBACK); bdi_wb_stat_mod(inode, WB_WRITEBACK, nr); __mark_inode_dirty(inode, I_DIRTY_DATASYNC); } diff --git a/fs/nfs/write.c b/fs/nfs/write.c index cc02b57de3c7..a8700824a61b 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -871,7 +871,7 @@ static void nfs_folio_clear_commit(struct folio *folio) if (folio) { long nr = folio_nr_pages(folio); - node_stat_mod_folio(folio, NR_WRITEBACK, -nr); + node_stat_sub_folio(folio, NR_WRITEBACK); bdi_wb_stat_mod(folio->mapping->host, WB_WRITEBACK, -nr); } } diff --git a/mm/compaction.c b/mm/compaction.c index 3648ce22c807..d7ce622aeed1 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1215,9 +1215,8 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, /* Successfully isolated */ lruvec_del_folio(lruvec, folio); - node_stat_mod_folio(folio, - NR_ISOLATED_ANON + folio_is_file_lru(folio), - folio_nr_pages(folio)); + node_stat_add_folio(folio, + NR_ISOLATED_ANON + folio_is_file_lru(folio)); isolate_success: list_add(&folio->lru, &cc->migratepages); diff --git a/mm/gup.c b/mm/gup.c index ad9ded39609c..2cb2efa20bff 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -2304,9 +2304,8 @@ static unsigned long collect_longterm_unpinnable_folios( continue; list_add_tail(&folio->lru, movable_folio_list); - node_stat_mod_folio(folio, - NR_ISOLATED_ANON + folio_is_file_lru(folio), - folio_nr_pages(folio)); + node_stat_add_folio(folio, + NR_ISOLATED_ANON + folio_is_file_lru(folio)); } return collected; diff --git a/mm/khugepaged.c b/mm/khugepaged.c index b8452dbdb043..f662de753305 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -502,9 +502,8 @@ void __khugepaged_exit(struct mm_struct *mm) static void release_pte_folio(struct folio *folio) { - node_stat_mod_folio(folio, - NR_ISOLATED_ANON + folio_is_file_lru(folio), - -folio_nr_pages(folio)); + node_stat_sub_folio(folio, + NR_ISOLATED_ANON + folio_is_file_lru(folio)); folio_unlock(folio); folio_putback_lru(folio); } @@ -650,9 +649,8 @@ static enum scan_result __collapse_huge_page_isolate(struct vm_area_struct *vma, result = SCAN_DEL_PAGE_LRU; goto out; } - node_stat_mod_folio(folio, - NR_ISOLATED_ANON + folio_is_file_lru(folio), - folio_nr_pages(folio)); + node_stat_add_folio(folio, + NR_ISOLATED_ANON + folio_is_file_lru(folio)); VM_BUG_ON_FOLIO(!folio_test_locked(folio), folio); VM_BUG_ON_FOLIO(folio_test_lru(folio), folio); diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 4e4421b22b59..1c413f66b35f 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1259,9 +1259,8 @@ static bool migrate_folio_add(struct folio *folio, struct list_head *foliolist, if ((flags & MPOL_MF_MOVE_ALL) || !folio_maybe_mapped_shared(folio)) { if (folio_isolate_lru(folio)) { list_add_tail(&folio->lru, foliolist); - node_stat_mod_folio(folio, - NR_ISOLATED_ANON + folio_is_file_lru(folio), - folio_nr_pages(folio)); + node_stat_add_folio(folio, + NR_ISOLATED_ANON + folio_is_file_lru(folio)); } else { /* * Non-movable folio may reach here. And, there may be diff --git a/mm/migrate.c b/mm/migrate.c index 8a64291ab5b4..dc8cfee37a70 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -268,8 +268,8 @@ void putback_movable_pages(struct list_head *l) if (unlikely(page_has_movable_ops(&folio->page))) { putback_movable_ops_page(&folio->page); } else { - node_stat_mod_folio(folio, NR_ISOLATED_ANON + - folio_is_file_lru(folio), -folio_nr_pages(folio)); + node_stat_sub_folio(folio, NR_ISOLATED_ANON + + folio_is_file_lru(folio)); folio_putback_lru(folio); } } @@ -2272,9 +2272,8 @@ static int __add_folio_for_migration(struct folio *folio, int node, return 1; } else if (folio_isolate_lru(folio)) { list_add_tail(&folio->lru, pagelist); - node_stat_mod_folio(folio, - NR_ISOLATED_ANON + folio_is_file_lru(folio), - folio_nr_pages(folio)); + node_stat_add_folio(folio, + NR_ISOLATED_ANON + folio_is_file_lru(folio)); return 1; } return -EBUSY; @@ -2726,8 +2725,7 @@ int migrate_misplaced_folio_prepare(struct folio *folio, if (!folio_isolate_lru(folio)) return -EAGAIN; - node_stat_mod_folio(folio, NR_ISOLATED_ANON + folio_is_file_lru(folio), - nr_pages); + node_stat_add_folio(folio, NR_ISOLATED_ANON + folio_is_file_lru(folio)); return 0; } diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 833f743f309f..87e9ea41313a 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2750,7 +2750,7 @@ bool folio_redirty_for_writepage(struct writeback_control *wbc, wb = unlocked_inode_to_wb_begin(inode, &cookie); current->nr_dirtied -= nr; - node_stat_mod_folio(folio, NR_DIRTIED, -nr); + node_stat_sub_folio(folio, NR_DIRTIED); wb_stat_mod(wb, WB_DIRTIED, -nr); unlocked_inode_to_wb_end(inode, &cookie); } @@ -2981,7 +2981,7 @@ bool __folio_end_writeback(struct folio *folio) lruvec_stat_mod_folio(folio, NR_WRITEBACK, -nr); zone_stat_mod_folio(folio, NR_ZONE_WRITE_PENDING, -nr); - node_stat_mod_folio(folio, NR_WRITTEN, nr); + node_stat_add_folio(folio, NR_WRITTEN); return ret; } diff --git a/mm/swap_state.c b/mm/swap_state.c index 1415a5c54a43..d08e923c9979 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -160,7 +160,7 @@ void __swap_cache_add_folio(struct swap_cluster_info *ci, folio_set_swapcache(folio); folio->swap = entry; - node_stat_mod_folio(folio, NR_FILE_PAGES, nr_pages); + node_stat_add_folio(folio, NR_FILE_PAGES); lruvec_stat_mod_folio(folio, NR_SWAPCACHE, nr_pages); } @@ -265,7 +265,7 @@ void __swap_cache_del_folio(struct swap_cluster_info *ci, struct folio *folio, folio->swap.val = 0; folio_clear_swapcache(folio); - node_stat_mod_folio(folio, NR_FILE_PAGES, -nr_pages); + node_stat_sub_folio(folio, NR_FILE_PAGES); lruvec_stat_mod_folio(folio, NR_SWAPCACHE, -nr_pages); if (!folio_swapped) { -- 2.43.0