From c5792d9384113de4085dfbce6940e2a853debb67 Mon Sep 17 00:00:00 2001 From: "Vishal Moola (Oracle)" Date: Wed, 4 Jan 2023 13:14:48 -0800 Subject: filemap: remove find_get_pages_range_tag() All callers to find_get_pages_range_tag(), find_get_pages_tag(), pagevec_lookup_range_tag(), and pagevec_lookup_tag() have been removed. Link: https://lkml.kernel.org/r/20230104211448.4804-24-vishal.moola@gmail.com Signed-off-by: Vishal Moola (Oracle) Signed-off-by: Andrew Morton --- include/linux/pagemap.h | 10 --------- include/linux/pagevec.h | 8 ------- mm/filemap.c | 60 ------------------------------------------------- mm/swap.c | 10 --------- 4 files changed, 88 deletions(-) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index bb3c1d51b1cb..9f1081683771 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -741,16 +741,6 @@ unsigned filemap_get_folios_contig(struct address_space *mapping, pgoff_t *start, pgoff_t end, struct folio_batch *fbatch); unsigned filemap_get_folios_tag(struct address_space *mapping, pgoff_t *start, pgoff_t end, xa_mark_t tag, struct folio_batch *fbatch); -unsigned find_get_pages_range_tag(struct address_space *mapping, pgoff_t *index, - pgoff_t end, xa_mark_t tag, unsigned int nr_pages, - struct page **pages); -static inline unsigned find_get_pages_tag(struct address_space *mapping, - pgoff_t *index, xa_mark_t tag, unsigned int nr_pages, - struct page **pages) -{ - return find_get_pages_range_tag(mapping, index, (pgoff_t)-1, tag, - nr_pages, pages); -} struct page *grab_cache_page_write_begin(struct address_space *mapping, pgoff_t index); diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h index 2a6f61a0c10a..f582f7213ea5 100644 --- a/include/linux/pagevec.h +++ b/include/linux/pagevec.h @@ -26,14 +26,6 @@ struct pagevec { }; void __pagevec_release(struct pagevec *pvec); -unsigned pagevec_lookup_range_tag(struct pagevec *pvec, - struct address_space *mapping, pgoff_t *index, pgoff_t end, - xa_mark_t tag); -static inline unsigned pagevec_lookup_tag(struct pagevec *pvec, - struct address_space *mapping, pgoff_t *index, xa_mark_t tag) -{ - return pagevec_lookup_range_tag(pvec, mapping, index, (pgoff_t)-1, tag); -} static inline void pagevec_init(struct pagevec *pvec) { diff --git a/mm/filemap.c b/mm/filemap.c index 85adbcf2d9a7..31bf18ec6d01 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2337,66 +2337,6 @@ out: } EXPORT_SYMBOL(filemap_get_folios_tag); -/** - * find_get_pages_range_tag - Find and return head pages matching @tag. - * @mapping: the address_space to search - * @index: the starting page index - * @end: The final page index (inclusive) - * @tag: the tag index - * @nr_pages: the maximum number of pages - * @pages: where the resulting pages are placed - * - * Like find_get_pages_range(), except we only return head pages which are - * tagged with @tag. @index is updated to the index immediately after the - * last page we return, ready for the next iteration. - * - * Return: the number of pages which were found. - */ -unsigned find_get_pages_range_tag(struct address_space *mapping, pgoff_t *index, - pgoff_t end, xa_mark_t tag, unsigned int nr_pages, - struct page **pages) -{ - XA_STATE(xas, &mapping->i_pages, *index); - struct folio *folio; - unsigned ret = 0; - - if (unlikely(!nr_pages)) - return 0; - - rcu_read_lock(); - while ((folio = find_get_entry(&xas, end, tag))) { - /* - * Shadow entries should never be tagged, but this iteration - * is lockless so there is a window for page reclaim to evict - * a page we saw tagged. Skip over it. - */ - if (xa_is_value(folio)) - continue; - - pages[ret] = &folio->page; - if (++ret == nr_pages) { - *index = folio->index + folio_nr_pages(folio); - goto out; - } - } - - /* - * We come here when we got to @end. We take care to not overflow the - * index @index as it confuses some of the callers. This breaks the - * iteration when there is a page at index -1 but that is already - * broken anyway. - */ - if (end == (pgoff_t)-1) - *index = (pgoff_t)-1; - else - *index = end + 1; -out: - rcu_read_unlock(); - - return ret; -} -EXPORT_SYMBOL(find_get_pages_range_tag); - /* * CD/DVDs are error prone. When a medium error occurs, the driver may fail * a _large_ part of the i/o request. Imagine the worst scenario: diff --git a/mm/swap.c b/mm/swap.c index 42d67f9baa8c..5e4f92700c16 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -1115,16 +1115,6 @@ void folio_batch_remove_exceptionals(struct folio_batch *fbatch) fbatch->nr = j; } -unsigned pagevec_lookup_range_tag(struct pagevec *pvec, - struct address_space *mapping, pgoff_t *index, pgoff_t end, - xa_mark_t tag) -{ - pvec->nr = find_get_pages_range_tag(mapping, index, end, tag, - PAGEVEC_SIZE, pvec->pages); - return pagevec_count(pvec); -} -EXPORT_SYMBOL(pagevec_lookup_range_tag); - /* * Perform any setup for the swap system */ -- cgit