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Message-Id: <1593977393-21446-2-git-send-email-joshi.k@samsung.com>
Date: Mon, 6 Jul 2020 00:59:53 +0530
From: Kanchan Joshi <joshi.k@...sung.com>
To: axboe@...nel.dk
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
Damien.LeMoal@....com, Kanchan Joshi <joshi.k@...sung.com>,
Selvakumar S <selvakuma.s1@...sung.com>,
Nitesh Shetty <nj.shetty@...sung.com>,
Javier Gonzalez <javier.gonz@...sung.com>
Subject: [PATCH v2] block: fix error code for zone-append
Avoid returning success when max_append_sectors is zero. This prevents
infinite loop in bio_iov_iter_get_pages().
Signed-off-by: Kanchan Joshi <joshi.k@...sung.com>
Signed-off-by: Selvakumar S <selvakuma.s1@...sung.com>
Signed-off-by: Nitesh Shetty <nj.shetty@...sung.com>
Signed-off-by: Javier Gonzalez <javier.gonz@...sung.com>
Reviewed-by: Damien Le Moal <damien.lemoal@....com>
---
block/bio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/bio.c b/block/bio.c
index a7366c0..0cecdbc 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1044,7 +1044,7 @@ static int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
size_t offset;
if (WARN_ON_ONCE(!max_append_sectors))
- return 0;
+ return -EINVAL;
/*
* Move page array up in the allocated memory for the bio vecs as far as
--
2.7.4
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