fs: use mapping_set_error instead of opencoded set_bit

The mapping_set_error() helper sets the correct AS_ flag for the mapping
so there is no reason to open code it.  Use the helper directly.

[akpm@linux-foundation.org: be honest about conversion from -ENXIO to -EIO]
Link: http://lkml.kernel.org/r/20160912111608.2588-2-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index d42ff527ab21..d8072bc074a4 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -778,7 +778,7 @@ try_again:
 fail:
         EXOFS_DBGMSG("Error: writepage_strip(0x%lx, 0x%lx)=>%d\n",
                      inode->i_ino, page->index, ret);
-        set_bit(AS_EIO, &page->mapping->flags);
+        mapping_set_error(page->mapping, -EIO);
         unlock_page(page);
         return ret;
 }