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Subject[PATCH v4 09/27] nilfs2: set the mapping error when calling SetPageError on writeback
Date
In a later patch, we're going to want to make the fsync codepath not do
a TestClearPageError call as that can override the error set in the
address space. To do that though, we need to ensure that filesystems
that are relying on the PG_error bit for reporting writeback errors
also set an error in the address space.

Ensure that this is set in nilfs2.

Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/nilfs2/segment.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index febed1217b3f..612d4b446793 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -1745,6 +1745,7 @@ static void nilfs_end_page_io(struct page *page, int err)
} else {
__set_page_dirty_nobuffers(page);
SetPageError(page);
+ mapping_set_error(page_mapping(page), err);
}

end_page_writeback(page);
--
2.9.3
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