AFS_VOLUME_NEEDS_UPDATE
set_bit(AFS_VOLUME_NEEDS_UPDATE, &op->volume->flags);
set_bit(AFS_VOLUME_NEEDS_UPDATE, &op->volume->flags);
set_bit(AFS_VOLUME_NEEDS_UPDATE, &volume->flags);
test_bit(AFS_VOLUME_NEEDS_UPDATE, &volume->flags))
clear_bit(AFS_VOLUME_NEEDS_UPDATE, &volume->flags);
set_bit(AFS_VOLUME_NEEDS_UPDATE, &volume->flags);