pve-qemu-qoup/debian/patches/pve/0040-migration-block-dirty-bitmap-migrate-other-bitmaps-e.patch
Stefan Reiter 8dca018b68 udpate and rebase to QEMU v6.0.0
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>
2021-05-28 11:29:44 +02:00

33 lines
1.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Tue, 3 Nov 2020 14:57:32 +0100
Subject: [PATCH] migration/block-dirty-bitmap: migrate other bitmaps even if
one fails
If the checks in bdrv_dirty_bitmap_check fail, that only means that this
one specific bitmap cannot be migrated. That is not an error condition
for any other bitmaps on the same block device.
Fixes dirty-bitmap migration with sync=bitmap, as the bitmaps used for
that are obviously marked as "busy", which would cause none at all to be
transferred.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
migration/block-dirty-bitmap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c
index 35f5ef688d..c4640925e7 100644
--- a/migration/block-dirty-bitmap.c
+++ b/migration/block-dirty-bitmap.c
@@ -538,7 +538,7 @@ static int add_bitmaps_to_list(DBMSaveState *s, BlockDriverState *bs,
if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_DEFAULT, &local_err)) {
error_report_err(local_err);
- return -1;
+ continue;
}
if (bitmap_aliases) {