linux-kernel - [PATCH v2 14/17] 9p: set mapping error when writeback fails in launder

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Message-Id: <20170412120614.6111-15-jlayton@redhat.com>
Date:   Wed, 12 Apr 2017 08:06:11 -0400
From:   Jeff Layton <jlayton@...hat.com>
To:     linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        tytso@....edu, jack@...e.cz, willy@...radead.org, neilb@...e.com,
        viro@...iv.linux.org.uk
Subject: [PATCH v2 14/17] 9p: set mapping error when writeback fails in launder_page

launder_page is just writeback under the page lock. We still need to
mark the mapping for errors there when they occur.

Signed-off-by: Jeff Layton <jlayton@...hat.com>
---
 fs/9p/vfs_addr.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index adaf6f6dd858..7af6e6501698 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -223,8 +223,11 @@ static int v9fs_launder_page(struct page *page)
 	v9fs_fscache_wait_on_page_write(inode, page);
 	if (clear_page_dirty_for_io(page)) {
 		retval = v9fs_vfs_writepage_locked(page);
-		if (retval)
+		if (retval) {
+			if (retval != -EAGAIN)
+				mapping_set_error(page->mapping, retval);
 			return retval;
+		}
 	}
 	return 0;
 }
-- 
2.9.3