33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Wolfgang Bumiller <w.bumiller@proxmox.com>
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Date: Mon, 6 Apr 2020 12:16:36 +0200
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Subject: [PATCH] PVE: [Config] rbd: block: rbd: disable
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rbd_cache_writethrough_until_flush
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Either the cache mode asks for a cache or not. There's no
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point in having a "temporary" cache mode. This option AFAIK
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was introduced as a hack for ancient virtio drivers. If
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anything, we should have a separate option for it. Better
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yet, VMs affected by the related issue should simply
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explicitly choose writethrough.
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Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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---
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block/rbd.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/block/rbd.c b/block/rbd.c
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index 9bd2bce716..c7195a2342 100644
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--- a/block/rbd.c
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+++ b/block/rbd.c
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@@ -609,6 +609,8 @@ static int qemu_rbd_connect(rados_t *cluster, rados_ioctx_t *io_ctx,
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rados_conf_set(*cluster, "rbd_cache", "false");
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}
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+ rados_conf_set(*cluster, "rbd_cache_writethrough_until_flush", "false");
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+
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r = rados_connect(*cluster);
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if (r < 0) {
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error_setg_errno(errp, -r, "error connecting");
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