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authorMatthew Wilcox (Oracle) <willy@infradead.org>2022-06-04 23:40:39 +0300
committerMatthew Wilcox (Oracle) <willy@infradead.org>2022-06-29 15:51:06 +0300
commitf6e0e173442459759f0bfc76a3693c47a615d54c (patch)
tree62b8aed029ad323b7c79aa18128657fa6ac2c307
parent1508062ecd5515bcd50e76ceda20d626e8bfe939 (diff)
downloadlinux-f6e0e173442459759f0bfc76a3693c47a615d54c.tar.xz
nilfs2: Convert nilfs_copy_back_pages() to use filemap_get_folios()
Use folios throughout. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
-rw-r--r--fs/nilfs2/page.c60
1 files changed, 30 insertions, 30 deletions
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index a8e88cc38e16..3267e96c256c 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -294,57 +294,57 @@ repeat:
void nilfs_copy_back_pages(struct address_space *dmap,
struct address_space *smap)
{
- struct pagevec pvec;
+ struct folio_batch fbatch;
unsigned int i, n;
- pgoff_t index = 0;
+ pgoff_t start = 0;
- pagevec_init(&pvec);
+ folio_batch_init(&fbatch);
repeat:
- n = pagevec_lookup(&pvec, smap, &index);
+ n = filemap_get_folios(smap, &start, ~0UL, &fbatch);
if (!n)
return;
- for (i = 0; i < pagevec_count(&pvec); i++) {
- struct page *page = pvec.pages[i], *dpage;
- pgoff_t offset = page->index;
-
- lock_page(page);
- dpage = find_lock_page(dmap, offset);
- if (dpage) {
- /* overwrite existing page in the destination cache */
- WARN_ON(PageDirty(dpage));
- nilfs_copy_page(dpage, page, 0);
- unlock_page(dpage);
- put_page(dpage);
- /* Do we not need to remove page from smap here? */
+ for (i = 0; i < folio_batch_count(&fbatch); i++) {
+ struct folio *folio = fbatch.folios[i], *dfolio;
+ pgoff_t index = folio->index;
+
+ folio_lock(folio);
+ dfolio = filemap_lock_folio(dmap, index);
+ if (dfolio) {
+ /* overwrite existing folio in the destination cache */
+ WARN_ON(folio_test_dirty(dfolio));
+ nilfs_copy_page(&dfolio->page, &folio->page, 0);
+ folio_unlock(dfolio);
+ folio_put(dfolio);
+ /* Do we not need to remove folio from smap here? */
} else {
- struct page *p;
+ struct folio *f;
- /* move the page to the destination cache */
+ /* move the folio to the destination cache */
xa_lock_irq(&smap->i_pages);
- p = __xa_erase(&smap->i_pages, offset);
- WARN_ON(page != p);
+ f = __xa_erase(&smap->i_pages, index);
+ WARN_ON(folio != f);
smap->nrpages--;
xa_unlock_irq(&smap->i_pages);
xa_lock_irq(&dmap->i_pages);
- p = __xa_store(&dmap->i_pages, offset, page, GFP_NOFS);
- if (unlikely(p)) {
+ f = __xa_store(&dmap->i_pages, index, folio, GFP_NOFS);
+ if (unlikely(f)) {
/* Probably -ENOMEM */
- page->mapping = NULL;
- put_page(page);
+ folio->mapping = NULL;
+ folio_put(folio);
} else {
- page->mapping = dmap;
+ folio->mapping = dmap;
dmap->nrpages++;
- if (PageDirty(page))
- __xa_set_mark(&dmap->i_pages, offset,
+ if (folio_test_dirty(folio))
+ __xa_set_mark(&dmap->i_pages, index,
PAGECACHE_TAG_DIRTY);
}
xa_unlock_irq(&dmap->i_pages);
}
- unlock_page(page);
+ folio_unlock(folio);
}
- pagevec_release(&pvec);
+ folio_batch_release(&fbatch);
cond_resched();
goto repeat;