forked from pool/libvirt
9be1e0080f
- Update to libvirt 8.9.0
- jsc#PED-620, jsc#PED-1540
- New subpackage libvirt-client-qemu providing client utilities
to interact with QEMU-specific features of libvirt
- Many incremental improvements and bug fixes, see
https://libvirt.org/news.html#v8-9-0-2022-11-01
OBS-URL: https://build.opensuse.org/request/show/1032947
OBS-URL: https://build.opensuse.org/package/show/Virtualization/libvirt?expand=0&rev=951
54 lines
1.9 KiB
Diff
54 lines
1.9 KiB
Diff
From 9b37c98cf768eb02afb384522a72ec36850876bf Mon Sep 17 00:00:00 2001
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From: Jim Fehlig <jfehlig@suse.com>
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Date: Tue, 5 Jul 2022 11:27:47 -0600
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Subject: libxl: Allow setting disk cache mode
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https://bugzilla.novell.com/show_bug.cgi?id=879425
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Signed-off-by: Jim Fehlig <jfehlig@suse.com>
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---
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src/libxl/libxl_conf.c | 23 +++++++++++++++++++++++
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1 file changed, 23 insertions(+)
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Index: libvirt-8.9.0/src/libxl/libxl_conf.c
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===================================================================
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--- libvirt-8.9.0.orig/src/libxl/libxl_conf.c
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+++ libvirt-8.9.0/src/libxl/libxl_conf.c
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@@ -941,6 +941,28 @@ libxlDiskSetDiscard(libxl_device_disk *x
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}
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}
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+static void
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+libxlDiskSetCacheMode(libxl_device_disk *x_disk, int cachemode)
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+{
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+ switch (cachemode) {
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+#if defined(LIBXL_HAVE_LIBXL_DEVICE_DISK_DISABLE_FLUSH_MAGIC)
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+ case VIR_DOMAIN_DISK_CACHE_UNSAFE:
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+ if (x_disk->readwrite)
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+ x_disk->readwrite = (x_disk->readwrite & LIBXL_HAVE_LIBXL_DEVICE_DISK_DISABLE_FLUSH_MASK) | LIBXL_HAVE_LIBXL_DEVICE_DISK_DISABLE_FLUSH_MAGIC;
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+ break;
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+#endif
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+ case VIR_DOMAIN_DISK_CACHE_DIRECTSYNC:
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+ x_disk->direct_io_safe = true;
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+ break;
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+ case VIR_DOMAIN_DISK_CACHE_DEFAULT:
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+ case VIR_DOMAIN_DISK_CACHE_DISABLE:
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+ case VIR_DOMAIN_DISK_CACHE_WRITETHRU:
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+ case VIR_DOMAIN_DISK_CACHE_WRITEBACK:
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+ default:
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+ break;
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+ }
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+}
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+
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static char *
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libxlMakeNetworkDiskSrcStr(virStorageSource *src,
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const char *username,
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@@ -1180,6 +1202,7 @@ libxlMakeDisk(virDomainDiskDef *l_disk,
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x_disk->readwrite = !l_disk->src->readonly;
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x_disk->is_cdrom = l_disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM ? 1 : 0;
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libxlDiskSetDiscard(x_disk, l_disk->discard);
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+ libxlDiskSetCacheMode(x_disk, l_disk->cachemode);
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/* An empty CDROM must have the empty format, otherwise libxl fails. */
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if (x_disk->is_cdrom && !x_disk->pdev_path)
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x_disk->format = LIBXL_DISK_FORMAT_EMPTY;
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