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Auke Kok
b724567b2a
Add a trigger that forces btree_merge() to return -ERANGE after modifying a leaf's worth of items, causing many small partial merges per merge cycle. This is used by tests to reliably reproduce races that depend on partial merges splicing items into fs_root while finalized logs still exist. The trigger check lives inside btree_merge() where it can observe actual item modification progress, rather than overriding the caller's dirty byte limit argument which applies to the whole writer context. Signed-off-by: Auke Kok <auke.kok@versity.com>