[PATCH 08/16] jffs2: Remove calls to set/clear the folio error flag

["Matthew Wilcox (Oracle)" <willy@infradead.org>]

Nobody checks the error flag on jffs2 folios, so stop setting and
clearing it.  We can also remove the call to clear the uptodate
flag; it will already be clear.

Convert one of these into a call to mapping_set_error() which will
actually be checked by other parts of the kernel.

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Zhihao Cheng <chengzhihao1@huawei.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Acked-by: Richard Weinberger <richard@nod.at>
---
 fs/jffs2/file.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 62ea76da7fdf..e12cb145147e 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -95,13 +95,8 @@ static int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
 	ret = jffs2_read_inode_range(c, f, pg_buf, pg->index << PAGE_SHIFT,
 				     PAGE_SIZE);
 
-	if (ret) {
-		ClearPageUptodate(pg);
-		SetPageError(pg);
-	} else {
+	if (!ret)
 		SetPageUptodate(pg);
-		ClearPageError(pg);
-	}
 
 	flush_dcache_page(pg);
 	kunmap(pg);
@@ -304,10 +299,8 @@ static int jffs2_write_end(struct file *filp, struct address_space *mapping,
 
 	kunmap(pg);
 
-	if (ret) {
-		/* There was an error writing. */
-		SetPageError(pg);
-	}
+	if (ret)
+		mapping_set_error(mapping, ret);
 
 	/* Adjust writtenlen for the padding we did, so we don't confuse our caller */
 	writtenlen -= min(writtenlen, (start - aligned_start));
@@ -330,7 +323,6 @@ static int jffs2_write_end(struct file *filp, struct address_space *mapping,
 		   it gets reread */
 		jffs2_dbg(1, "%s(): Not all bytes written. Marking page !uptodate\n",
 			__func__);
-		SetPageError(pg);
 		ClearPageUptodate(pg);
 	}
 
-- 
2.43.0