Remove "experimental" warnings from multimds #15154
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To replicate s stray dentry, we need to replicate all its ancestors. Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
When a directory tree become frozen, its WAIT_FROZEN contexts are executed asynchronously. Before Migrator::export_frozen() set export bounds, MDCache::try_subtree_merge_at() can merge newly imported subtree into the frozen directory tree. This causes problem if there are auth pins in newly imported subtree. The fix is creating subtree root immediately after directory tree becomes frozen. The new subtree root has dir_auth 'me, me', so it's not meregeable. Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
If inode is replica and it has no auth subtree dirfrag, We should not mark its nestlock dirty. Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
MDCache::eval_subtree_root() may tigger scatter-gather process, which submits log entry. Submitting log entry while adjusting subtree map is bad, because subtree map in intermediate state may get used/logged. Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
MDCache::forge_replica_dir() set wrong dir_auth if the forged replica dirfrag is subtree root. Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
mds may try discover several times for MDirUpdate, rename may kick in and cause MDCache::path_traverse() to return error. Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: John Spray <john.spray@redhat.com>
Signed-off-by: John Spray <john.spray@redhat.com>
Signed-off-by: John Spray <john.spray@redhat.com>
Signed-off-by: John Spray <john.spray@redhat.com>
Signed-off-by: John Spray <john.spray@redhat.com>
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