30 lines
874 B
Diff
30 lines
874 B
Diff
From 0dd047c39e7821c8e31f9133be12bc9be61c045c Mon Sep 17 00:00:00 2001
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From: Alexandre Derumier <aderumier@odiso.com>
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Date: Tue, 26 Jul 2016 16:51:00 +0200
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Subject: [PATCH 39/48] rbd: disable rbd_cache_writethrough_until_flush with
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cache=unsafe
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Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
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---
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block/rbd.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/block/rbd.c b/block/rbd.c
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index 498322b..e9c02c6 100644
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--- a/block/rbd.c
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+++ b/block/rbd.c
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@@ -616,6 +616,10 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
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rados_conf_set(s->cluster, "rbd_cache", "true");
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}
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+ if (flags & BDRV_O_NO_FLUSH) {
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+ rados_conf_set(s->cluster, "rbd_cache_writethrough_until_flush", "false");
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+ }
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+
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r = rados_connect(s->cluster);
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if (r < 0) {
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error_setg_errno(errp, -r, "error connecting");
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--
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2.1.4
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