fs: support getname_maybe_null() in move_mount()

Allow move_mount() to work with NULL path arguments.

Link: https://lore.kernel.org/r/20250221-brauner-open_tree-v1-8-dbcfcb98c676@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Christian Brauner 2025-02-21 14:13:07 +01:00
commit f9fde814de
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2 changed files with 61 additions and 33 deletions