diff options
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 82938b037103..c79801656f5b 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2581,18 +2581,21 @@ int redirty_page_for_writepage(struct writeback_control *wbc, struct page *page) } EXPORT_SYMBOL(redirty_page_for_writepage); -/* - * Dirty a page. +/** + * folio_mark_dirty - Mark a folio as being modified. + * @folio: The folio. + * + * For folios with a mapping this should be done under the page lock + * for the benefit of asynchronous memory errors who prefer a consistent + * dirty state. This rule can be broken in some special cases, + * but should be better not to. * - * For pages with a mapping this should be done under the page lock for the - * benefit of asynchronous memory errors who prefer a consistent dirty state. - * This rule can be broken in some special cases, but should be better not to. + * Return: True if the folio was newly dirtied, false if it was already dirty. */ -int set_page_dirty(struct page *page) +bool folio_mark_dirty(struct folio *folio) { - struct address_space *mapping = page_mapping(page); + struct address_space *mapping = folio_mapping(folio); - page = compound_head(page); if (likely(mapping)) { /* * readahead/lru_deactivate_page could remain @@ -2604,17 +2607,17 @@ int set_page_dirty(struct page *page) * it will confuse readahead and make it restart the size rampup * process. But it's a trivial problem. */ - if (PageReclaim(page)) - ClearPageReclaim(page); - return mapping->a_ops->set_page_dirty(page); + if (folio_test_reclaim(folio)) + folio_clear_reclaim(folio); + return mapping->a_ops->set_page_dirty(&folio->page); } - if (!PageDirty(page)) { - if (!TestSetPageDirty(page)) - return 1; + if (!folio_test_dirty(folio)) { + if (!folio_test_set_dirty(folio)) + return true; } - return 0; + return false; } -EXPORT_SYMBOL(set_page_dirty); +EXPORT_SYMBOL(folio_mark_dirty); /* * set_page_dirty() is racy if the caller has no reference against |