src/sys/kern/subr_pool.c - diff

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version 1.46, 2000/12/07 21:30:07

version 1.47, 2000/12/10 17:03:34

Line 1683 pool_cache_put(struct pool_cache *pc, vo

* No empty groups to free the object to. Attempt to

* allocate one. We don't unlock the cache here, since

* allocate one.

* we never block.

simple_unlock(&pc->pc_slock);

pcg = pool_get(&pcgpool, PR_NOWAIT);

if (pcg != NULL) {

memset(pcg, 0, sizeof(*pcg));

simple_lock(&pc->pc_slock);

TAILQ_INSERT_TAIL(&pc->pc_grouplist, pcg, pcg_list);

pc->pc_freeto = pcg;

if (pc->pc_freeto == NULL)

pc->pc_freeto = pcg;

goto have_group;

}

simple_unlock(&pc->pc_slock);

* Unable to allocate a cache group; destruct the object

* and free it back to the pool.

Line 1772 static void

pool_cache_reclaim(struct pool_cache *pc)

{

simple_lock(&pc->pc_slock);

* We're locking in the opposite order (pool already

* locked in pool_reclaim()), so use a try-lock instead.

if (simple_lock_try(&pc->pc_slock) == 0)

return;

pool_cache_do_invalidate(pc, 1, pool_do_put);

simple_unlock(&pc->pc_slock);

}