mm: fix mapping_set_error call in me_pagecache_dirty

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>

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 2527dfeddb003d245ac2e2bd964134030426f777..3c5e0b8162f34b6beeeb88f19ac76bc90ff3c3ca 100644 (file)
--- 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);