[PATCH 10/15] ceph: Convert ceph_read_iter() to use a folio to read inline data

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

Use the folio APIs instead of the page APIs.

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 fs/ceph/file.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index b1da02f5dbe3..5c4f763b1304 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -2083,19 +2083,19 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to)
 
 	if (retry_op > HAVE_RETRIED && ret >= 0) {
 		int statret;
-		struct page *page = NULL;
+		struct folio *folio = NULL;
 		loff_t i_size;
 		if (retry_op == READ_INLINE) {
-			page = __page_cache_alloc(GFP_KERNEL);
-			if (!page)
+			folio = filemap_alloc_folio(GFP_KERNEL, 0);
+			if (!folio)
 				return -ENOMEM;
 		}
 
-		statret = __ceph_do_getattr(inode, page,
-					    CEPH_STAT_CAP_INLINE_DATA, !!page);
+		statret = __ceph_do_getattr(inode, &folio->page,
+					    CEPH_STAT_CAP_INLINE_DATA, !!folio);
 		if (statret < 0) {
-			if (page)
-				__free_page(page);
+			if (folio)
+				folio_put(folio);
 			if (statret == -ENODATA) {
 				BUG_ON(retry_op != READ_INLINE);
 				goto again;
@@ -2112,8 +2112,8 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to)
 						   iocb->ki_pos + len);
 				end = min_t(loff_t, end, PAGE_SIZE);
 				if (statret < end)
-					zero_user_segment(page, statret, end);
-				ret = copy_page_to_iter(page,
+					folio_zero_segment(folio, statret, end);
+				ret = copy_folio_to_iter(folio,
 						iocb->ki_pos & ~PAGE_MASK,
 						end - iocb->ki_pos, to);
 				iocb->ki_pos += ret;
@@ -2126,7 +2126,7 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to)
 				iocb->ki_pos += ret;
 				read += ret;
 			}
-			__free_pages(page, 0);
+			folio_put(folio);
 			return read;
 		}
 
-- 
2.40.1