Merge tag 'migration-20231103-pull-request' of https://gitlab.com/juan.quintela/qemu into staging

Migration Pull request (20231103)

Hi

In this PULL:
- dirty limit fixes (hyman)
- coverity issues (juan)

Please apply.

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# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [full]
# gpg:                 aka "Juan Quintela <quintela@trasno.org>" [full]
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* tag 'migration-20231103-pull-request' of https://gitlab.com/juan.quintela/qemu:
  migration: Unlock mutex in error case
  docs/migration: Add the dirty limit section
  tests/migration: Introduce dirty-limit into guestperf
  tests/migration: Introduce dirty-ring-size option into guestperf
  tests: Add migration dirty-limit capability test
  system/dirtylimit: Drop the reduplicative check
  system/dirtylimit: Fix a race situation

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/tests/migration/guestperf/scenario.py b/tests/migration/guestperf/scenario.py
index de70d9b2f5..154c4f5d5f 100644
--- a/tests/migration/guestperf/scenario.py
+++ b/tests/migration/guestperf/scenario.py
@@ -30,7 +30,9 @@ class Scenario(object):
                  auto_converge=False, auto_converge_step=10,
                  compression_mt=False, compression_mt_threads=1,
                  compression_xbzrle=False, compression_xbzrle_cache=10,
-                 multifd=False, multifd_channels=2):
+                 multifd=False, multifd_channels=2,
+                 dirty_limit=False, x_vcpu_dirty_limit_period=500,
+                 vcpu_dirty_limit=1):
 
         self._name = name
 
@@ -60,6 +62,10 @@ class Scenario(object):
         self._multifd = multifd
         self._multifd_channels = multifd_channels
 
+        self._dirty_limit = dirty_limit
+        self._x_vcpu_dirty_limit_period = x_vcpu_dirty_limit_period
+        self._vcpu_dirty_limit = vcpu_dirty_limit
+
     def serialize(self):
         return {
             "name": self._name,
@@ -79,6 +85,9 @@ class Scenario(object):
             "compression_xbzrle_cache": self._compression_xbzrle_cache,
             "multifd": self._multifd,
             "multifd_channels": self._multifd_channels,
+            "dirty_limit": self._dirty_limit,
+            "x_vcpu_dirty_limit_period": self._x_vcpu_dirty_limit_period,
+            "vcpu_dirty_limit": self._vcpu_dirty_limit,
         }
 
     @classmethod