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50 lines
1.7 KiB
50 lines
1.7 KiB
From 2f4436e7cc2f63d198229dc8ba32783460c0b185 Mon Sep 17 00:00:00 2001
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From: Stefano Garzarella <sgarzare@redhat.com>
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Date: Thu, 27 Jul 2023 18:10:20 +0200
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Subject: [PATCH 06/14] block/blkio: use blkio_set_int("fd") to check fd
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support
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RH-Author: Stefano Garzarella <sgarzare@redhat.com>
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RH-MergeRequest: 194: block/blkio: backport latest fixes for virtio-blk-* drivers
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RH-Bugzilla: 2225354 2225439
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RH-Acked-by: Hanna Czenczek <hreitz@redhat.com>
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RH-Acked-by: Alberto Faria <None>
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RH-Commit: [6/6] d57aafb2c3a8ed13aa3c6dcce5525a9cc8f5aa21 (sgarzarella/qemu-kvm-c-9-s)
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Setting the `fd` property fails with virtio-blk-* libblkio drivers
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that do not support fd passing since
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https://gitlab.com/libblkio/libblkio/-/merge_requests/208.
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Getting the `fd` property, on the other hand, always succeeds for
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virtio-blk-* libblkio drivers even when they don't support fd passing.
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This patch switches to setting the `fd` property because it is a
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better mechanism for probing fd passing support than getting the `fd`
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property.
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Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
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Message-id: 20230727161020.84213-5-sgarzare@redhat.com
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit 1c38fe69e2b8a05c1762b122292fa7e3662f06fd)
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Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
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---
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block/blkio.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/block/blkio.c b/block/blkio.c
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index eef80e9ce5..8defbf744f 100644
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--- a/block/blkio.c
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+++ b/block/blkio.c
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@@ -689,7 +689,7 @@ static int blkio_virtio_blk_connect(BlockDriverState *bs, QDict *options,
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return -EINVAL;
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}
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- if (blkio_get_int(s->blkio, "fd", &fd) == 0) {
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+ if (blkio_set_int(s->blkio, "fd", -1) == 0) {
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fd_supported = true;
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}
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--
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2.39.3
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