linux-ext4 - [PATCH v4 12/27] cifs: set mapping error when page writeback fails in writepage or launder

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Date:   Tue,  9 May 2017 11:49:15 -0400
From:   Jeff Layton <jlayton@...hat.com>
To:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-btrfs@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-cifs@...r.kernel.org, linux-nfs@...r.kernel.org,
        linux-mm@...ck.org, jfs-discussion@...ts.sourceforge.net,
        linux-xfs@...r.kernel.org, cluster-devel@...hat.com,
        linux-f2fs-devel@...ts.sourceforge.net,
        v9fs-developer@...ts.sourceforge.net, linux-nilfs@...r.kernel.org,
        linux-block@...r.kernel.org
Cc:     dhowells@...hat.com, akpm@...ux-foundation.org, hch@...radead.org,
        ross.zwisler@...ux.intel.com, mawilcox@...rosoft.com,
        jack@...e.com, viro@...iv.linux.org.uk, corbet@....net,
        neilb@...e.de, clm@...com, tytso@....edu, axboe@...nel.dk,
        josef@...icpanda.com, hubcap@...ibond.com, rpeterso@...hat.com,
        bo.li.liu@...cle.com
Subject: [PATCH v4 12/27] cifs: set mapping error when page writeback fails in writepage or launder_pages

Signed-off-by: Jeff Layton <jlayton@...hat.com>
Reviewed-by: Christoph Hellwig <hch@....de>
---
 fs/cifs/file.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 21d404535739..0bee7f8d91ad 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2234,14 +2234,16 @@ cifs_writepage_locked(struct page *page, struct writeback_control *wbc)
 	set_page_writeback(page);
 retry_write:
 	rc = cifs_partialpagewrite(page, 0, PAGE_SIZE);
-	if (rc == -EAGAIN && wbc->sync_mode == WB_SYNC_ALL)
-		goto retry_write;
-	else if (rc == -EAGAIN)
+	if (rc == -EAGAIN) {
+		if (wbc->sync_mode == WB_SYNC_ALL)
+			goto retry_write;
 		redirty_page_for_writepage(wbc, page);
-	else if (rc != 0)
+	} else if (rc != 0) {
 		SetPageError(page);
-	else
+		mapping_set_error(page->mapping, rc);
+	} else {
 		SetPageUptodate(page);
+	}
 	end_page_writeback(page);
 	put_page(page);
 	free_xid(xid);
-- 
2.9.3