[PATCH 15/18] fs: Change the type of filler_t

[Sebastian Huber]

From: "Matthew Wilcox (Oracle)" <willy at infradead.org>

By making filler_t the same as read_folio, we can use the same function
for both in gfs2.  We can push the use of folios down one more level
in jffs2 and nfs.  We also increase type safety for future users of the
various read_cache_page() family of functions by forcing the parameter
to be a pointer to struct file (or NULL).

Signed-off-by: Matthew Wilcox (Oracle) <willy at infradead.org>
Reviewed-by: Christoph Hellwig <hch at lst.de>
Reviewed-by: Andreas Gruenbacher <agruenba at redhat.com>
---
 cpukit/libfs/src/jffs2/src/gc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cpukit/libfs/src/jffs2/src/gc.c b/cpukit/libfs/src/jffs2/src/gc.c
index a8b742c899..3d0d8c56d9 100644
--- a/cpukit/libfs/src/jffs2/src/gc.c
+++ b/cpukit/libfs/src/jffs2/src/gc.c
@@ -1340,7 +1340,7 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
 	mutex_unlock(&f->sem);
 #ifndef __rtems__
 	page = read_cache_page(inode->i_mapping, start >> PAGE_SHIFT,
-			       jffs2_do_readpage_unlock, NULL);
+			       __jffs2_read_folio, NULL);
 	if (IS_ERR(page)) {
 		pr_warn("read_cache_page() returned error: %ld\n",
 			PTR_ERR(page));
-- 
2.35.3