The one caller of test_clear_page_writeback() already has a folio, so rename it to test_clear_folio_writeback() to make it clear that it operates on the entire folio. This removes a few calls to compound_head() but actually grows the function by 49 bytes because it now accounts for the number of pages in the folio.
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]> --- include/linux/page-flags.h | 2 +- mm/filemap.c | 2 +- mm/page-writeback.c | 20 ++++++++++---------- 3 files changed, 12 insertions(+), 12 deletions(-) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 90381858d901..01aa4a71bf14 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -594,7 +594,7 @@ static __always_inline void SetPageUptodate(struct page *page) CLEARPAGEFLAG(Uptodate, uptodate, PF_NO_TAIL) -int test_clear_page_writeback(struct page *page); +int test_clear_folio_writeback(struct folio *folio); int __test_set_page_writeback(struct page *page, bool keep_write); #define test_set_page_writeback(page) \ diff --git a/mm/filemap.c b/mm/filemap.c index e91fa14c86c7..57f46ff2f230 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1446,7 +1446,7 @@ void end_folio_writeback(struct folio *folio) * reused before the wake_up_folio(). */ get_folio(folio); - if (!test_clear_page_writeback(&folio->page)) + if (!test_clear_folio_writeback(folio)) BUG(); smp_mb__after_atomic(); diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 6c1b4737c383..fa3411ea4cd3 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -589,7 +589,7 @@ static void wb_domain_writeout_inc(struct wb_domain *dom, /* * Increment @wb's writeout completion count and the global writeout - * completion count. Called from test_clear_page_writeback(). + * completion count. Called from test_clear_folio_writeback(). */ static inline void __wb_writeout_inc(struct bdi_writeback *wb) { @@ -2719,24 +2719,24 @@ int clear_page_dirty_for_io(struct page *page) } EXPORT_SYMBOL(clear_page_dirty_for_io); -int test_clear_page_writeback(struct page *page) +int test_clear_folio_writeback(struct folio *folio) { - struct address_space *mapping = page_mapping(page); + struct address_space *mapping = folio_mapping(folio); struct mem_cgroup *memcg; struct lruvec *lruvec; int ret; - memcg = lock_page_memcg(page); - lruvec = mem_cgroup_page_lruvec(page, page_pgdat(page)); + memcg = lock_folio_memcg(folio); + lruvec = mem_cgroup_folio_lruvec(folio, folio_pgdat(folio)); if (mapping && mapping_use_writeback_tags(mapping)) { struct inode *inode = mapping->host; struct backing_dev_info *bdi = inode_to_bdi(inode); unsigned long flags; xa_lock_irqsave(&mapping->i_pages, flags); - ret = TestClearPageWriteback(page); + ret = TestClearFolioWriteback(folio); if (ret) { - __xa_clear_mark(&mapping->i_pages, page_index(page), + __xa_clear_mark(&mapping->i_pages, folio_index(folio), PAGECACHE_TAG_WRITEBACK); if (bdi->capabilities & BDI_CAP_WRITEBACK_ACCT) { struct bdi_writeback *wb = inode_to_wb(inode); @@ -2752,12 +2752,12 @@ int test_clear_page_writeback(struct page *page) xa_unlock_irqrestore(&mapping->i_pages, flags); } else { - ret = TestClearPageWriteback(page); + ret = TestClearFolioWriteback(folio); } if (ret) { dec_lruvec_state(lruvec, NR_WRITEBACK); - dec_zone_page_state(page, NR_ZONE_WRITE_PENDING); - inc_node_page_state(page, NR_WRITTEN); + dec_zone_folio_stat(folio, NR_ZONE_WRITE_PENDING); + inc_node_folio_stat(folio, NR_WRITTEN); } __unlock_page_memcg(memcg); return ret; -- 2.30.0
