From: Christoph Hellwig <hch@lst.de>
Date: Sat, 3 Jun 2017 07:37:59 +0000 (+0200)
Subject: fs: simplify dio_bio_complete
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d5245d7674d3f026a3178657936759d572d2d5d8;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

fs: simplify dio_bio_complete

Only read bio->bi_error once in the common path.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 04247a6c3f73..bb711e4b86c2 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -477,13 +477,12 @@ static int dio_bio_complete(struct dio *dio, struct bio *bio)
 {
 	struct bio_vec *bvec;
 	unsigned i;
-	int err;
+	int err = bio->bi_error;
 
-	if (bio->bi_error)
+	if (err)
 		dio->io_error = -EIO;
 
 	if (dio->is_async && dio->op == REQ_OP_READ && dio->should_dirty) {
-		err = bio->bi_error;
 		bio_check_pages_dirty(bio);	/* transfers ownership */
 	} else {
 		bio_for_each_segment_all(bvec, bio, i) {
@@ -494,7 +493,6 @@ static int dio_bio_complete(struct dio *dio, struct bio *bio)
 				set_page_dirty_lock(page);
 			put_page(page);
 		}
-		err = bio->bi_error;
 		bio_put(bio);
 	}
 	return err;