HAMMER2_PBUFSIZE
char buf[HAMMER2_PBUFSIZE];
#define HAMMER2_IND_BYTES_MAX HAMMER2_PBUFSIZE
#define HAMMER2_PBUFMASK (HAMMER2_PBUFSIZE - 1)
#define HAMMER2_PBUFSIZE64 ((hammer2_off_t)HAMMER2_PBUFSIZE)
#define HAMMER2_ZONE_BLOCKS_SEG (HAMMER2_ZONE_SEG / HAMMER2_PBUFSIZE)
#if (1 << HAMMER2_PBUFRADIX) != HAMMER2_PBUFSIZE