forked from pool/libvirt
4e3b0799c4
- Update to libvirt 9.1.0 - Many incremental improvements and bug fixes, see https://libvirt.org/news.html#v9-1-0-2023-03-01 - spec: Remove obsolete Groups tag - spec: Integrate upstream spec file changes that split the libvirt-daemon package, allowing more modular, customized installations - spec: New subpackages libvirt-daemon-common, libvirt-daemon-lock, libvirt-daemon-log, libvirt-daemon-proxy, and libvirt-daemon-plugin-lockd - spec: Renamed subpackage libvirt-lock-sanlock to libvirt-daemon-plugin-sanlock - Dropped patches: ef482951-apparmor-Allow-umount-dev.patch, d6a8b9ee-qemu-Fix-managed-no-when-creating-ethdev.patch, c3f16cea-qemu-cleanup-label-on-umount-failure.patch, 697c16e3-qemu_process-better-debug-message.patch, 5155ab4b-qemu_namespace-nested-mounts-when-umount.patch OBS-URL: https://build.opensuse.org/request/show/1068569 OBS-URL: https://build.opensuse.org/package/show/Virtualization/libvirt?expand=0&rev=968
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-9.1.0/src/libxl/libxl_conf.c
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===================================================================
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--- libvirt-9.1.0.orig/src/libxl/libxl_conf.c
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+++ libvirt-9.1.0/src/libxl/libxl_conf.c
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@@ -949,6 +949,28 @@ 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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@@ -1183,6 +1205,7 @@ 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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