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Pasha Tatashin
e3e613a33e
Verify that a file can only be preserved once across all active sessions. Attempting to preserve it a second time, whether in the same or a different session, should fail with EBUSY. Link: https://lore.kernel.org/20260326163943.574070-4-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Reviewed-by: Samiullah Khawaja <skhawaja@google.com> Cc: David Matlack <dmatlack@google.com> Cc: Pratyush Yadav <pratyush@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Christian Brauner <brauner@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>