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-rw-r--r--fs/iomap.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/iomap.c b/fs/iomap.c
index 1cf160ced0d4..3f5b1655cfce 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -1053,8 +1053,15 @@ iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
}
pos += ret;
- if (iov_iter_rw(iter) == READ && pos >= dio->i_size)
+ if (iov_iter_rw(iter) == READ && pos >= dio->i_size) {
+ /*
+ * We only report that we've read data up to i_size.
+ * Revert iter to a state corresponding to that as
+ * some callers (such as splice code) rely on it.
+ */
+ iov_iter_revert(iter, pos - dio->i_size);
break;
+ }
} while ((count = iov_iter_count(iter)) > 0);
blk_finish_plug(&plug);