bgpd: Optimize memory for bgp_nexthop_cache struct

```
struct bgp_nexthop_cache {
	afi_t                      afi;                  /*     0     4 */
	ifindex_t                  ifindex_ipv6_ll;      /*     4     4 */
	struct bgp_nexthop_cache_item entry;             /*     8    32 */
	uint32_t                   metric;               /*    40     4 */
	uint8_t                    nexthop_num;          /*    44     1 */
	_Bool                      is_evpn_gwip_nexthop; /*    45     1 */
	uint16_t                   change_flags;         /*    46     2 */
	struct nexthop *           nexthop;              /*    48     8 */
	time_t                     last_update;          /*    56     8 */
	/* --- cacheline 1 boundary (64 bytes) --- */
	uint16_t                   flags;                /*    64     2 */

	/* XXX 2 bytes hole, try to pack */

	uint32_t                   srte_color;           /*    68     4 */
	struct bgp_nexthop_cache_head * tree;            /*    72     8 */
	struct prefix              prefix __attribute__((__aligned__(8))); /*    80    56 */
	/* --- cacheline 2 boundary (128 bytes) was 8 bytes ago --- */
	void *                     nht_info;             /*   136     8 */
	struct path_list           paths;                /*   144     8 */
	unsigned int               path_count;           /*   152     4 */

	/* XXX 4 bytes hole, try to pack */

	struct bgp *               bgp;                  /*   160     8 */

	/* size: 168, cachelines: 3, members: 17 */
	/* sum members: 162, holes: 2, sum holes: 6 */
	/* forced alignments: 1 */
	/* last cacheline: 40 bytes */
} __attribute__((__aligned__(8)));   /* saved 16 bytes! */
```

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>

0 files changed, 0 insertions, 0 deletions