btrfs: convert btrfs_set_range_writeback() to use a folio

We already use a lot of functions here that use folios, update the
function to use __filemap_get_folio instead of find_get_page and then
use the folio directly.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 0e5db91..aece69d 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8958,19 +8958,19 @@ void btrfs_set_range_writeback(struct btrfs_inode *inode, u64 start, u64 end)
        struct btrfs_fs_info *fs_info = inode->root->fs_info;
        unsigned long index = start >> PAGE_SHIFT;
        unsigned long end_index = end >> PAGE_SHIFT;
-       struct page *page;
+       struct folio *folio;
        u32 len;
 
        ASSERT(end + 1 - start <= U32_MAX);
        len = end + 1 - start;
        while (index <= end_index) {
-               page = find_get_page(inode->vfs_inode.i_mapping, index);
-               ASSERT(page); /* Pages should be in the extent_io_tree */
+               folio = __filemap_get_folio(inode->vfs_inode.i_mapping, index, 0, 0);
+               ASSERT(!IS_ERR(folio)); /* folios should be in the extent_io_tree */
 
                /* This is for data, which doesn't yet support larger folio. */
-               ASSERT(folio_order(page_folio(page)) == 0);
-               btrfs_folio_set_writeback(fs_info, page_folio(page), start, len);
-               put_page(page);
+               ASSERT(folio_order(folio) == 0);
+               btrfs_folio_set_writeback(fs_info, folio, start, len);
+               folio_put(folio);
                index++;
        }
 }