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Diffstat (limited to 'lib/mempool.c')
-rw-r--r--lib/mempool.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/lib/mempool.c b/lib/mempool.c
index 758882ce..8f300b81 100644
--- a/lib/mempool.c
+++ b/lib/mempool.c
@@ -37,9 +37,10 @@ const int lp_chunk_size = sizeof(struct lp_chunk);
struct linpool {
resource r;
byte *ptr, *end;
+ pool *p;
struct lp_chunk *first, *current; /* Normal (reusable) chunks */
struct lp_chunk *first_large; /* Large chunks */
- uint chunk_size, threshold, total, total_large;
+ uint chunk_size, threshold, total:31, use_pages:1, total_large;
};
static void lp_free(resource *);
@@ -69,6 +70,13 @@ linpool
*lp_new(pool *p, uint blk)
{
linpool *m = ralloc(p, &lp_class);
+ m->p = p;
+ if (!blk)
+ {
+ m->use_pages = 1;
+ blk = page_size - lp_chunk_size;
+ }
+
m->chunk_size = blk;
m->threshold = 3*blk/4;
return m;
@@ -121,7 +129,11 @@ lp_alloc(linpool *m, uint size)
else
{
/* Need to allocate a new chunk */
- c = xmalloc(sizeof(struct lp_chunk) + m->chunk_size);
+ if (m->use_pages)
+ c = alloc_page(m->p);
+ else
+ c = xmalloc(sizeof(struct lp_chunk) + m->chunk_size);
+
m->total += m->chunk_size;
c->next = NULL;
c->size = m->chunk_size;
@@ -258,7 +270,10 @@ lp_free(resource *r)
for(d=m->first; d; d = c)
{
c = d->next;
- xfree(d);
+ if (m->use_pages)
+ free_page(m->p, d);
+ else
+ xfree(d);
}
for(d=m->first_large; d; d = c)
{