8dca018b68
Mostly minor changes, bigger ones summarized: * QEMU's internal backup code now uses a new async system, which allows parallel requests - the default max_workers settings is 64, I chose less, since 64 put enough stress on QEMU that the guest became practically unusable during the backup, and 16 still shows quite a nice measureable performance improvement. Little code changes for us though. * 'malformed' QAPI parameters/functions are now a build error (i.e. using '_' vs '-'), I chose to just whitelist our calls in the name of backwards compatibility. * monitor OOB race fix now uses the upstream variant, cherry-picked from origin/master since it's not in 6.0 by default * last patch fixes a bug with snapshot rollback related to the new yank system Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
69 lines
2.2 KiB
Diff
69 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Fabian Ebner <f.ebner@proxmox.com>
|
|
Date: Tue, 17 Nov 2020 10:51:05 +0100
|
|
Subject: [PATCH] PVE: fall back to open-iscsi initiatorname
|
|
|
|
When no explicit option is given, try reading the initiator name from
|
|
/etc/iscsi/initiatorname.iscsi and only use the generic fallback, i.e.
|
|
iqn.2008-11.org.linux-kvmXXX, as a third alternative.
|
|
|
|
This avoids the need to add an explicit option for vma and to explicitly set it
|
|
for each call to qemu that deals with iSCSI disks, while still allowing to set
|
|
the option if a different name is needed.
|
|
|
|
According to RFC 3720, an initiator name is at most 223 bytes long, so the
|
|
4 KiB buffer is big enough, even if many whitespaces are used.
|
|
|
|
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
|
|
---
|
|
block/iscsi.c | 30 ++++++++++++++++++++++++++++++
|
|
1 file changed, 30 insertions(+)
|
|
|
|
diff --git a/block/iscsi.c b/block/iscsi.c
|
|
index 4d2a416ce7..c345d30812 100644
|
|
--- a/block/iscsi.c
|
|
+++ b/block/iscsi.c
|
|
@@ -1372,12 +1372,42 @@ static char *get_initiator_name(QemuOpts *opts)
|
|
const char *name;
|
|
char *iscsi_name;
|
|
UuidInfo *uuid_info;
|
|
+ FILE *name_fh;
|
|
|
|
name = qemu_opt_get(opts, "initiator-name");
|
|
if (name) {
|
|
return g_strdup(name);
|
|
}
|
|
|
|
+ name_fh = fopen("/etc/iscsi/initiatorname.iscsi", "r");
|
|
+ if (name_fh) {
|
|
+ const char *key = "InitiatorName";
|
|
+ char buffer[4096];
|
|
+ char *line;
|
|
+
|
|
+ while ((line = fgets(buffer, sizeof(buffer), name_fh))) {
|
|
+ line = g_strstrip(line);
|
|
+ if (!strncmp(line, key, strlen(key))) {
|
|
+ line = strchr(line, '=');
|
|
+ if (!line || strlen(line) == 1) {
|
|
+ continue;
|
|
+ }
|
|
+ line++;
|
|
+ g_strstrip(line);
|
|
+ if (!strlen(line)) {
|
|
+ continue;
|
|
+ }
|
|
+ name = line;
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+ fclose(name_fh);
|
|
+
|
|
+ if (name) {
|
|
+ return g_strdup(name);
|
|
+ }
|
|
+ }
|
|
+
|
|
uuid_info = qmp_query_uuid(NULL);
|
|
if (strcmp(uuid_info->UUID, UUID_NONE) == 0) {
|
|
name = qemu_get_vm_name();
|