[PATCH 30/56] reiserfs: Convert from invalidatepage to invalidate_folio

["Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>]

This is a straightforward conversion.

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 fs/reiserfs/inode.c   | 26 +++++++++++++-------------
 fs/reiserfs/journal.c |  4 ++--
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index f49b72ccac4c..f7fa70b419d2 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -3094,7 +3094,7 @@ void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode)
  * decide if this buffer needs to stay around for data logging or ordered
  * write purposes
  */
-static int invalidatepage_can_drop(struct inode *inode, struct buffer_head *bh)
+static int invalidate_folio_can_drop(struct inode *inode, struct buffer_head *bh)
 {
 	int ret = 1;
 	struct reiserfs_journal *j = SB_JOURNAL(inode->i_sb);
@@ -3147,26 +3147,26 @@ static int invalidatepage_can_drop(struct inode *inode, struct buffer_head *bh)
 	return ret;
 }
 
-/* clm -- taken from fs/buffer.c:block_invalidate_page */
-static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
-				    unsigned int length)
+/* clm -- taken from fs/buffer.c:block_invalidate_folio */
+static void reiserfs_invalidate_folio(struct folio *folio, size_t offset,
+				    size_t length)
 {
 	struct buffer_head *head, *bh, *next;
-	struct inode *inode = page->mapping->host;
+	struct inode *inode = folio->mapping->host;
 	unsigned int curr_off = 0;
 	unsigned int stop = offset + length;
-	int partial_page = (offset || length < PAGE_SIZE);
+	int partial_page = (offset || length < folio_size(folio));
 	int ret = 1;
 
-	BUG_ON(!PageLocked(page));
+	BUG_ON(!folio_test_locked(folio));
 
 	if (!partial_page)
-		ClearPageChecked(page);
+		folio_clear_checked(folio);
 
-	if (!page_has_buffers(page))
+	head = folio_buffers(folio);
+	if (!head)
 		goto out;
 
-	head = page_buffers(page);
 	bh = head;
 	do {
 		unsigned int next_off = curr_off + bh->b_size;
@@ -3179,7 +3179,7 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
 		 * is this block fully invalidated?
 		 */
 		if (offset <= curr_off) {
-			if (invalidatepage_can_drop(inode, bh))
+			if (invalidate_folio_can_drop(inode, bh))
 				reiserfs_unmap_buffer(bh);
 			else
 				ret = 0;
@@ -3194,7 +3194,7 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
 	 * so real IO is not possible anymore.
 	 */
 	if (!partial_page && ret) {
-		ret = try_to_release_page(page, 0);
+		ret = filemap_release_folio(folio, 0);
 		/* maybe should BUG_ON(!ret); - neilb */
 	}
 out:
@@ -3430,7 +3430,7 @@ const struct address_space_operations reiserfs_address_space_operations = {
 	.readpage = reiserfs_readpage,
 	.readahead = reiserfs_readahead,
 	.releasepage = reiserfs_releasepage,
-	.invalidatepage = reiserfs_invalidatepage,
+	.invalidate_folio = reiserfs_invalidate_folio,
 	.write_begin = reiserfs_write_begin,
 	.write_end = reiserfs_write_end,
 	.bmap = reiserfs_aop_bmap,
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index a3e21160b634..b5b6f6201bed 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -858,8 +858,8 @@ static int write_ordered_buffers(spinlock_t * lock,
 			ret = -EIO;
 		}
 		/*
-		 * ugly interaction with invalidatepage here.
-		 * reiserfs_invalidate_page will pin any buffer that has a
+		 * ugly interaction with invalidate_folio here.
+		 * reiserfs_invalidate_folio will pin any buffer that has a
 		 * valid journal head from an older transaction.  If someone
 		 * else sets our buffer dirty after we write it in the first
 		 * loop, and then someone truncates the page away, nobody
-- 
2.34.1