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01ec0f3a92
This doubly linked list is common for all the multifd and migration
threads so we need to avoid concurrent access.
Add a mutex to protect the data from concurrent access. This fixes a
crash when removing two MigrationThread objects from the list at the
same time during cleanup of multifd threads.
Fixes: 671326201d ("migration: Introduce interface query-migrationthreads")
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230607161306.31425-3-farosas@suse.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
25 lines
713 B
C
25 lines
713 B
C
/*
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* Migration Threads info
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*
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* Copyright (c) 2022 HUAWEI TECHNOLOGIES CO., LTD.
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*
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* Authors:
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* Jiang Jiacheng <jiangjiacheng@huawei.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qapi/error.h"
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#include "qapi/qapi-commands-migration.h"
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typedef struct MigrationThread MigrationThread;
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struct MigrationThread {
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const char *name; /* the name of migration thread */
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int thread_id; /* ID of the underlying host thread */
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QLIST_ENTRY(MigrationThread) node;
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};
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MigrationThread *migration_threads_add(const char *name, int thread_id);
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void migration_threads_remove(MigrationThread *info);
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