8eb8af4b3d
As per Linus's suggestion (https://lore.kernel.org/r/CAHk-=whefxRGyNGzCzG6BVeM=5vnvgb-XhSeFJVxJyAxAF8XRA@mail.gmail.com), use WARN_ON_ONCE instead of WARN_ON. This barely adds any extra overhead, and it makes it so that if any of these ever becomes reachable (they shouldn't, but that's the point), the logs can't be flooded. Link: https://lore.kernel.org/r/20230406181542.38894-1-ebiggers@kernel.org Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Eric Biggers <ebiggers@google.com>