From 1c42f149ddc1ff7dd897ef2696ad662955a5ab2b Mon Sep 17 00:00:00 2001
From: "Denis V. Lunev" <den@openvz.org>
Date: Thu, 23 Jun 2016 14:37:16 +0300
Subject: [PATCH] block: fix return code for partial write for Linux AIO
Partial write most likely means that there is not space rather than
"something wrong happens". Thus it would be more natural to return
ENOSPC rather than EINVAL.
The problem actually happens with NBD server, which has reported EINVAL
rather then ENOSPC on the first error using its protocol, which makes
report to the user wrong.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Pavel Borzenkov <pborzenkov@virtuozzo.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/linux-aio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/linux-aio.c b/block/linux-aio.c
index e468960146..7df8651581 100644
--- a/block/linux-aio.c
+++ b/block/linux-aio.c
@@ -87,7 +87,7 @@ static void qemu_laio_process_completion(struct qemu_laiocb *laiocb)
qemu_iovec_memset(laiocb->qiov, ret, 0,
laiocb->qiov->size - ret);
} else {
- ret = -EINVAL;
+ ret = -ENOSPC;
}
}
}