High priority MDL_BACKUP_COMMIT_HIGH_PRIO and Slave-side BACKUP-COMMIT tracking to prevent parallel-slave/backup deadlock#5123

hemantdangi-gc wants to merge 3 commits into

10.11MariaDB/server:10.11from

bb-10.11_MDEV-36025_1MariaDB/server:bb-10.11_MDEV-36025_1Copy head branch name to clipboard