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Merge commit 'd39ef961d1dde230c55fcc931b53f44cb34a1e63' into haugesund

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This commit is contained in:
Maria Matejka 2022-05-30 15:32:11 +02:00
commit 81aeccbb00
8 changed files with 45 additions and 60 deletions
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66
lib/mempool.c
View File

@ -27,19 +27,18 @@
struct lp_chunk {
struct lp_chunk *next;
uint size;
uintptr_t data_align[0];
byte data[0];
};
const int lp_chunk_size = sizeof(struct lp_chunk);
#define LP_DATA_SIZE (page_size - OFFSETOF(struct lp_chunk, data))
struct linpool {
resource r;
byte *ptr, *end;
struct lp_chunk *first, *current; /* Normal (reusable) chunks */
struct lp_chunk *first_large; /* Large chunks */
uint chunk_size, threshold, total:31, use_pages:1, total_large;
uint total, total_large;
};
_Thread_local linpool *tmp_linpool;
@ -61,25 +60,14 @@ static struct resclass lp_class = {
/**
* lp_new - create a new linear memory pool
* @p: pool
* @blk: block size
*
* lp_new() creates a new linear memory pool resource inside the pool @p.
* The linear pool consists of a list of memory chunks of size at least
* @blk.
* The linear pool consists of a list of memory chunks of page size.
*/
linpool
*lp_new(pool *p, uint blk)
*lp_new(pool *p)
{
linpool *m = ralloc(p, &lp_class);
if (!blk)
{
m->use_pages = 1;
blk = page_size - lp_chunk_size;
}
m->chunk_size = blk;
m->threshold = 3*blk/4;
return m;
return ralloc(p, &lp_class);
}
/**
@ -110,14 +98,13 @@ lp_alloc(linpool *m, uint size)
else
{
struct lp_chunk *c;
if (size >= m->threshold)
if (size > LP_DATA_SIZE)
{
/* Too large => allocate large chunk */
c = xmalloc(sizeof(struct lp_chunk) + size);
m->total_large += size;
c->next = m->first_large;
m->first_large = c;
c->size = size;
}
else
{
@ -129,14 +116,10 @@ lp_alloc(linpool *m, uint size)
else
{
/* Need to allocate a new chunk */
if (m->use_pages)
c = alloc_page();
else
c = xmalloc(sizeof(struct lp_chunk) + m->chunk_size);
c = alloc_page();
m->total += m->chunk_size;
m->total += LP_DATA_SIZE;
c->next = NULL;
c->size = m->chunk_size;
if (m->current)
m->current->next = c;
@ -145,7 +128,7 @@ lp_alloc(linpool *m, uint size)
}
m->current = c;
m->ptr = c->data + size;
m->end = c->data + m->chunk_size;
m->end = c->data + LP_DATA_SIZE;
}
return c->data;
}
@ -207,7 +190,7 @@ lp_flush(linpool *m)
/* Move ptr to the first chunk and free all large chunks */
m->current = c = m->first;
m->ptr = c ? c->data : NULL;
m->end = c ? c->data + m->chunk_size : NULL;
m->end = c ? c->data + LP_DATA_SIZE : NULL;
while (c = m->first_large)
{
@ -230,6 +213,7 @@ lp_save(linpool *m, lp_state *p)
{
p->current = m->current;
p->large = m->first_large;
p->total_large = m->total_large;
p->ptr = m->ptr;
}
@ -251,12 +235,12 @@ lp_restore(linpool *m, lp_state *p)
/* Move ptr to the saved pos and free all newer large chunks */
m->current = c = p->current;
m->ptr = p->ptr;
m->end = c ? c->data + m->chunk_size : NULL;
m->end = c ? c->data + LP_DATA_SIZE : NULL;
m->total_large = p->total_large;
while ((c = m->first_large) && (c != p->large))
{
m->first_large = c->next;
m->total_large -= c->size;
xfree(c);
}
}
@ -270,10 +254,7 @@ lp_free(resource *r)
for(d=m->first; d; d = c)
{
c = d->next;
if (m->use_pages)
free_page(d);
else
xfree(d);
free_page(d);
}
for(d=m->first_large; d; d = c)
{
@ -293,9 +274,7 @@ lp_dump(resource *r)
;
for(cntl=0, c=m->first_large; c; c=c->next, cntl++)
;
debug("(chunk=%d threshold=%d count=%d+%d total=%d+%d)\n",
m->chunk_size,
m->threshold,
debug("(count=%d+%d total=%d+%d)\n",
cnt,
cntl,
m->total,
@ -308,20 +287,18 @@ lp_memsize(resource *r)
linpool *m = (linpool *) r;
struct resmem sz = {
.overhead = sizeof(struct linpool) + ALLOC_OVERHEAD,
.effective = m->total_large,
};
for (struct lp_chunk *c = m->first_large; c; c = c->next)
{
sz.effective += c->size;
sz.overhead += lp_chunk_size + ALLOC_OVERHEAD;
}
sz.overhead += sizeof(struct lp_chunk) + ALLOC_OVERHEAD;
uint regular = 0;
for (struct lp_chunk *c = m->first; c; c = c->next)
regular++;
sz.effective += m->chunk_size * regular;
sz.overhead += (lp_chunk_size + ALLOC_OVERHEAD) * regular;
sz.effective += LP_DATA_SIZE * regular;
sz.overhead += (sizeof(struct lp_chunk) + ALLOC_OVERHEAD) * regular;
return sz;
}
@ -334,10 +311,7 @@ lp_lookup(resource *r, unsigned long a)
struct lp_chunk *c;
for(c=m->first; c; c=c->next)
if ((unsigned long) c->data <= a && (unsigned long) c->data + c->size > a)
return r;
for(c=m->first_large; c; c=c->next)
if ((unsigned long) c->data <= a && (unsigned long) c->data + c->size > a)
if ((unsigned long) c->data <= a && (unsigned long) c->data + LP_DATA_SIZE > a)
return r;
return NULL;
}

8
lib/resource.h
View File

@ -69,9 +69,10 @@ typedef struct linpool linpool;
typedef struct lp_state {
void *current, *large;
byte *ptr;
uint total_large;
} lp_state;
linpool *lp_new(pool *, unsigned blk);
linpool *lp_new(pool *);
void *lp_alloc(linpool *, unsigned size); /* Aligned */
void *lp_allocu(linpool *, unsigned size); /* Unaligned */
void *lp_allocz(linpool *, unsigned size); /* With clear */
@ -88,10 +89,7 @@ extern _Thread_local linpool *tmp_linpool; /* Temporary linpool autoflushed regu
#define tmp_init(p) tmp_linpool = lp_new_default(p)
#define tmp_flush() lp_flush(tmp_linpool)
extern const int lp_chunk_size;
#define LP_GAS 1024
#define LP_GOOD_SIZE(x) (((x + LP_GAS - 1) & (~(LP_GAS - 1))) - lp_chunk_size)
#define lp_new_default(p) lp_new(p, 0)
#define lp_new_default lp_new
/* Slabs */

2
nest/rt-table.c
View File

@ -3488,7 +3488,7 @@ rt_init_hostcache(rtable *tab)
hc_alloc_table(hc, tab->rp, HC_DEF_ORDER);
hc->slab = sl_new(tab->rp, sizeof(struct hostentry));
hc->lp = lp_new(tab->rp, LP_GOOD_SIZE(1024));
hc->lp = lp_new(tab->rp);
hc->trie = f_new_trie(hc->lp, 0);
tab->hostcache = hc;

7
proto/bgp/attrs.c
View File

@ -2074,14 +2074,17 @@ bgp_rte_mergable(rte *pri, rte *sec)
u32 p, s;
/* Skip suppressed routes (see bgp_rte_recalculate()) */
/* LLGR draft - depreference stale routes */
if (pri->pflags != sec->pflags)
if ((pri->pflags ^ sec->pflags) & BGP_REF_SUPPRESSED)
return 0;
/* RFC 4271 9.1.2.1. Route resolvability test */
if (rta_resolvable(pri->attrs) != rta_resolvable(sec->attrs))
return 0;
/* LLGR draft - depreference stale routes */
if (rte_stale(pri) != rte_stale(sec))
return 0;
/* Start with local preferences */
x = ea_find(pri->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_LOCAL_PREF));
y = ea_find(sec->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_LOCAL_PREF));

14
proto/bgp/packets.c
View File

@ -2324,6 +2324,9 @@ bgp_create_update(struct bgp_channel *c, byte *buf)
again: ;
struct lp_state tmpp;
lp_save(tmp_linpool, &tmpp);
/* Initialize write state */
struct bgp_write_state s = {
.proto = p,
@ -2354,6 +2357,7 @@ again: ;
if (EMPTY_LIST(buck->prefixes))
{
bgp_free_bucket(c, buck);
lp_restore(tmp_linpool, &tmpp);
goto again;
}
@ -2367,7 +2371,10 @@ again: ;
bgp_defer_bucket(c, buck);
if (!res)
{
lp_restore(tmp_linpool, &tmpp);
goto again;
}
goto done;
}
@ -2378,7 +2385,7 @@ again: ;
done:
BGP_TRACE_RL(&rl_snd_update, D_PACKETS, "Sending UPDATE");
p->stats.tx_updates++;
lp_flush(s.pool);
lp_restore(tmp_linpool, &tmpp);
return res;
}
@ -2507,6 +2514,9 @@ bgp_rx_update(struct bgp_conn *conn, byte *pkt, uint len)
bgp_start_timer(conn->hold_timer, conn->hold_time);
struct lp_state tmpp;
lp_save(tmp_linpool, &tmpp);
/* Initialize parse state */
struct bgp_parse_state s = {
.proto = p,
@ -2588,7 +2598,7 @@ bgp_rx_update(struct bgp_conn *conn, byte *pkt, uint len)
done:
rta_free(s.cached_rta);
lp_flush(s.pool);
lp_restore(tmp_linpool, &tmpp);
return;
}

4
proto/mrt/mrt.c
View File

@ -557,8 +557,8 @@ mrt_table_dump_init(pool *pp)
struct mrt_table_dump_state *s = mb_allocz(pool, sizeof(struct mrt_table_dump_state));
s->pool = pool;
s->linpool = lp_new(pool, 4080);
s->peer_lp = lp_new(pool, 4080);
s->linpool = lp_new(pool);
s->peer_lp = lp_new(pool);
mrt_buffer_init(&s->buf, pool, 2 * MRT_ATTR_BUFFER_SIZE);
/* We lock the current config as we may reference it indirectly by filter */

2
proto/ospf/ospf.c
View File

@ -299,7 +299,7 @@ ospf_start(struct proto *P)
p->lsab_size = 256;
p->lsab_used = 0;
p->lsab = mb_alloc(P->pool, p->lsab_size);
p->nhpool = lp_new(P->pool, 12*sizeof(struct nexthop));
p->nhpool = lp_new(P->pool);
init_list(&(p->iface_list));
init_list(&(p->area_list));
fib_init(&p->rtf, P->pool, ospf_get_af(p), sizeof(ort), OFFSETOF(ort, fn), 0, NULL);

2
proto/static/static.c
View File

@ -475,7 +475,7 @@ static_start(struct proto *P)
struct static_route *r;
if (!static_lp)
static_lp = lp_new(&root_pool, LP_GOOD_SIZE(1024));
static_lp = lp_new(&root_pool);
if (p->igp_table_ip4)
rt_lock_table(p->igp_table_ip4);