[pve-devel] [PATCH qemu-server v4 14/27] module config: load nbd module at boot

[Fiona Ebner]

Adapt the existing modules-load.d configuration, to also include the
'nbd' kernel module. By default, it is only possible to expose 16
NBDs, so add a modprobe.d configuration file as well, with a higher
limit, i.e. 128.

This is in preparation for supporting external backup providers,
giving them access to a QEMU block layer snapshot of the VM's disk
images that are exported as NBD devices and then exposed as regular
block devices.

Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
---

New in v4.

 Makefile          | 1 +
 modprobe.conf     | 1 +
 modules-load.conf | 1 +
 3 files changed, 3 insertions(+)
 create mode 100644 modprobe.conf

diff --git a/Makefile b/Makefile
index 133468da..419b8c8e 100644
--- a/Makefile
+++ b/Makefile
@@ -70,6 +70,7 @@ install: $(PKGSOURCES)
 	install -m 0755 qm $(DESTDIR)$(SBINDIR)
 	install -m 0755 qmrestore $(DESTDIR)$(SBINDIR)
 	install -D -m 0644 modules-load.conf $(DESTDIR)/etc/modules-load.d/qemu-server.conf
+	install -D -m 0644 modprobe.conf $(DESTDIR)/etc/modprobe.d/qemu-server.conf
 	install -m 0755 qmextract $(DESTDIR)$(LIBDIR)
 	install -m 0644 qm.1 $(DESTDIR)/$(MAN1DIR)
 	install -m 0644 qmrestore.1 $(DESTDIR)/$(MAN1DIR)
diff --git a/modprobe.conf b/modprobe.conf
new file mode 100644
index 00000000..b9c973df
--- /dev/null
+++ b/modprobe.conf
@@ -0,0 +1 @@
+options nbd nbds_max=128
diff --git a/modules-load.conf b/modules-load.conf
index aee7d42a..0c6bdf14 100644
--- a/modules-load.conf
+++ b/modules-load.conf
@@ -1 +1,2 @@
+nbd
 vhost_net
-- 
2.39.5