linux-ext4 - [PATCH 05/10] f2fs: Convert f2fs_invalidate_compress_pages() to use filemap_get

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Date:   Sun,  5 Jun 2022 20:38:49 +0100
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     linux-fsdevel@...r.kernel.org
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, linux-mm@...ck.org,
        linux-nilfs@...r.kernel.org
Subject: [PATCH 05/10] f2fs: Convert f2fs_invalidate_compress_pages() to use filemap_get_folios()

Convert this function to use folios throughout.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 fs/f2fs/compress.c | 35 +++++++++++++++--------------------
 1 file changed, 15 insertions(+), 20 deletions(-)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 24824cd96f36..009e6c519e98 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1832,45 +1832,40 @@ bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino)
 {
 	struct address_space *mapping = sbi->compress_inode->i_mapping;
-	struct pagevec pvec;
+	struct folio_batch fbatch;
 	pgoff_t index = 0;
 	pgoff_t end = MAX_BLKADDR(sbi);
 
 	if (!mapping->nrpages)
 		return;
 
-	pagevec_init(&pvec);
+	folio_batch_init(&fbatch);
 
 	do {
-		unsigned int nr_pages;
-		int i;
+		unsigned int nr, i;
 
-		nr_pages = pagevec_lookup_range(&pvec, mapping,
-						&index, end - 1);
-		if (!nr_pages)
+		nr = filemap_get_folios(mapping, &index, end - 1, &fbatch);
+		if (!nr)
 			break;
 
-		for (i = 0; i < nr_pages; i++) {
-			struct page *page = pvec.pages[i];
-
-			if (page->index > end)
-				break;
+		for (i = 0; i < nr; i++) {
+			struct folio *folio = fbatch.folios[i];
 
-			lock_page(page);
-			if (page->mapping != mapping) {
-				unlock_page(page);
+			folio_lock(folio);
+			if (folio->mapping != mapping) {
+				folio_unlock(folio);
 				continue;
 			}
 
-			if (ino != get_page_private_data(page)) {
-				unlock_page(page);
+			if (ino != get_page_private_data(&folio->page)) {
+				folio_unlock(folio);
 				continue;
 			}
 
-			generic_error_remove_page(mapping, page);
-			unlock_page(page);
+			generic_error_remove_page(mapping, &folio->page);
+			folio_unlock(folio);
 		}
-		pagevec_release(&pvec);
+		folio_batch_release(&fbatch);
 		cond_resched();
 	} while (index < end);
 }
-- 
2.35.1