In order to get proper error codes from fsync, we must set an error in
the mapping range when writeback fails.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
fs/dax.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/dax.c b/fs/dax.c
index 85abd741253d..9b6b04030c3f 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -901,8 +901,10 @@ int dax_writeback_mapping_range(struct address_space *mapping,
ret = dax_writeback_one(bdev, mapping, indices[i],
pvec.pages[i]);
- if (ret < 0)
+ if (ret < 0) {
+ mapping_set_error(mapping, ret);
return ret;
+ }
}
}
return 0;
--
2.9.3
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