2016-06-24 19:07:56 +02:00
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https://bugzilla.novell.com/show_bug.cgi?id=879425
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---
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src/libxl/libxl_conf.c | 25 +++++++++++++++++++++++++
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1 file changed, 25 insertions(+)
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2022-04-02 00:35:43 +02:00
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Index: libvirt-8.2.0/src/libxl/libxl_conf.c
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2016-06-24 19:07:56 +02:00
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===================================================================
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2022-04-02 00:35:43 +02:00
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--- libvirt-8.2.0.orig/src/libxl/libxl_conf.c
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+++ libvirt-8.2.0/src/libxl/libxl_conf.c
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2022-03-03 18:31:09 +01:00
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@@ -943,6 +943,28 @@ libxlDiskSetDiscard(libxl_device_disk *x
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2021-09-01 18:17:27 +02:00
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}
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2016-06-24 19:07:56 +02:00
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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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2016-07-01 18:39:05 +02:00
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static char *
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2021-05-18 00:14:02 +02:00
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libxlMakeNetworkDiskSrcStr(virStorageSource *src,
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2016-07-01 18:39:05 +02:00
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const char *username,
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2022-03-03 18:31:09 +01:00
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@@ -1182,6 +1204,7 @@ libxlMakeDisk(virDomainDiskDef *l_disk,
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2021-09-01 18:17:27 +02:00
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x_disk->readwrite = !l_disk->src->readonly;
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2016-06-24 19:07:56 +02:00
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x_disk->is_cdrom = l_disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM ? 1 : 0;
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2021-09-01 18:17:27 +02:00
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libxlDiskSetDiscard(x_disk, l_disk->discard);
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2016-06-24 19:07:56 +02:00
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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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