dax: set did_zero to true when zeroing successfully

It is unnecessary to check and set did_zero value in while() loop in dax_zero_iter(), we can set did_zero to true only when zeroing successfully at last. Signed-off-by: Kaixu Xia <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]>
Stilmant · Jun 30, 2022 · f8189d5 · f8189d5
1 parent 98eb8d9
commit f8189d5
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/fs/dax.c b/fs/dax.c
@@ -1088,10 +1088,10 @@ static s64 dax_zero_iter(struct iomap_iter *iter, bool *did_zero)
 		pos += size;
 		length -= size;
 		written += size;
-		if (did_zero)
-			*did_zero = true;
 	} while (length > 0);
 
+	if (did_zero)
+		*did_zero = true;
 	return written;
 }