From jlayton@redhat.com  Wed Mar 21 11:42:20 2018
From: Jeff Layton <jlayton@redhat.com>
Subject: mm: fix mapping_set_error call in me_pagecache_dirty
Git-commit: af21bfaf70a1358f306588232f741b292d9be5a7
Patch-mainline: v4.13-rc1
References: bsc#1086149 bsc#1086285

The error code should be negative.  Since this ends up in the default case
anyway, this is harmless, but it's less confusing to negate it.  Also,
later patches will require a negative error code here.

Link: http://lkml.kernel.org/r/20170525103355.6760-1-jlayton@redhat.com
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Jeff Mahoney <jeffm@suse.com>
---
 mm/memory-failure.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 2527dfeddb00..3c5e0b8162f3 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -684,7 +684,7 @@ static int me_pagecache_dirty(struct page *p, unsigned long pfn)
 		 * the first EIO, but we're not worse than other parts
 		 * of the kernel.
 		 */
-		mapping_set_error(mapping, EIO);
+		mapping_set_error(mapping, -EIO);
 	}
 
 	return me_pagecache_clean(p, pfn);