| version 1.161, 2008/05/31 13:31:25 |
version 1.162, 2008/07/04 13:28:08 |
| Line 179 static struct pool cache_cpu_pool; |
|
| Line 179 static struct pool cache_cpu_pool; |
|
| TAILQ_HEAD(,pool_cache) pool_cache_head = |
TAILQ_HEAD(,pool_cache) pool_cache_head = |
| TAILQ_HEAD_INITIALIZER(pool_cache_head); |
TAILQ_HEAD_INITIALIZER(pool_cache_head); |
| |
|
| int pool_cache_disable; |
int pool_cache_disable; /* global disable for caching */ |
| |
static pcg_t pcg_dummy; /* zero sized: always empty, yet always full */ |
| |
|
| |
static bool pool_cache_put_slow(pool_cache_cpu_t *, int, |
| static pool_cache_cpu_t *pool_cache_put_slow(pool_cache_cpu_t *, int *, |
void *); |
| void *, paddr_t); |
static bool pool_cache_get_slow(pool_cache_cpu_t *, int, |
| static pool_cache_cpu_t *pool_cache_get_slow(pool_cache_cpu_t *, int *, |
void **, paddr_t *, int); |
| void **, paddr_t *, int); |
|
| static void pool_cache_cpu_init1(struct cpu_info *, pool_cache_t); |
static void pool_cache_cpu_init1(struct cpu_info *, pool_cache_t); |
| static void pool_cache_invalidate_groups(pool_cache_t, pcg_t *); |
static void pool_cache_invalidate_groups(pool_cache_t, pcg_t *); |
| static void pool_cache_xcall(pool_cache_t); |
static void pool_cache_xcall(pool_cache_t); |
| Line 2151 pool_cache_destroy(pool_cache_t pc) |
|
| Line 2151 pool_cache_destroy(pool_cache_t pc) |
|
| for (i = 0; i < MAXCPUS; i++) { |
for (i = 0; i < MAXCPUS; i++) { |
| if ((cc = pc->pc_cpus[i]) == NULL) |
if ((cc = pc->pc_cpus[i]) == NULL) |
| continue; |
continue; |
| if ((pcg = cc->cc_current) != NULL) { |
if ((pcg = cc->cc_current) != &pcg_dummy) { |
| pcg->pcg_next = NULL; |
pcg->pcg_next = NULL; |
| pool_cache_invalidate_groups(pc, pcg); |
pool_cache_invalidate_groups(pc, pcg); |
| } |
} |
| if ((pcg = cc->cc_previous) != NULL) { |
if ((pcg = cc->cc_previous) != &pcg_dummy) { |
| pcg->pcg_next = NULL; |
pcg->pcg_next = NULL; |
| pool_cache_invalidate_groups(pc, pcg); |
pool_cache_invalidate_groups(pc, pcg); |
| } |
} |
| Line 2209 pool_cache_cpu_init1(struct cpu_info *ci |
|
| Line 2209 pool_cache_cpu_init1(struct cpu_info *ci |
|
| cc->cc_cpuindex = index; |
cc->cc_cpuindex = index; |
| cc->cc_hits = 0; |
cc->cc_hits = 0; |
| cc->cc_misses = 0; |
cc->cc_misses = 0; |
| cc->cc_current = NULL; |
cc->cc_current = &pcg_dummy; |
| cc->cc_previous = NULL; |
cc->cc_previous = &pcg_dummy; |
| |
|
| pc->pc_cpus[index] = cc; |
pc->pc_cpus[index] = cc; |
| } |
} |
| Line 2359 pool_cache_sethardlimit(pool_cache_t pc, |
|
| Line 2359 pool_cache_sethardlimit(pool_cache_t pc, |
|
| pool_sethardlimit(&pc->pc_pool, n, warnmess, ratecap); |
pool_sethardlimit(&pc->pc_pool, n, warnmess, ratecap); |
| } |
} |
| |
|
| static inline pool_cache_cpu_t * |
static bool __noinline |
| pool_cache_cpu_enter(pool_cache_t pc, int *s) |
pool_cache_get_slow(pool_cache_cpu_t *cc, int s, void **objectp, |
| { |
|
| pool_cache_cpu_t *cc; |
|
| |
|
| /* |
|
| * Prevent other users of the cache from accessing our |
|
| * CPU-local data. To avoid touching shared state, we |
|
| * pull the neccessary information from CPU local data. |
|
| */ |
|
| KPREEMPT_DISABLE(curlwp); |
|
| cc = pc->pc_cpus[curcpu()->ci_index]; |
|
| KASSERT(cc->cc_cache == pc); |
|
| if (cc->cc_ipl != IPL_NONE) { |
|
| *s = splraiseipl(cc->cc_iplcookie); |
|
| } |
|
| |
|
| return cc; |
|
| } |
|
| |
|
| static inline void |
|
| pool_cache_cpu_exit(pool_cache_cpu_t *cc, int *s) |
|
| { |
|
| |
|
| /* No longer need exclusive access to the per-CPU data. */ |
|
| if (cc->cc_ipl != IPL_NONE) { |
|
| splx(*s); |
|
| } |
|
| KPREEMPT_ENABLE(curlwp); |
|
| } |
|
| |
|
| pool_cache_cpu_t * __noinline |
|
| pool_cache_get_slow(pool_cache_cpu_t *cc, int *s, void **objectp, |
|
| paddr_t *pap, int flags) |
paddr_t *pap, int flags) |
| { |
{ |
| pcg_t *pcg, *cur; |
pcg_t *pcg, *cur; |
| Line 2406 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| Line 2375 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| * Nothing was available locally. Try and grab a group |
* Nothing was available locally. Try and grab a group |
| * from the cache. |
* from the cache. |
| */ |
*/ |
| if (!mutex_tryenter(&pc->pc_lock)) { |
if (__predict_false(!mutex_tryenter(&pc->pc_lock))) { |
| ncsw = curlwp->l_ncsw; |
ncsw = curlwp->l_ncsw; |
| mutex_enter(&pc->pc_lock); |
mutex_enter(&pc->pc_lock); |
| pc->pc_contended++; |
pc->pc_contended++; |
| Line 2418 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| Line 2387 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| */ |
*/ |
| if (curlwp->l_ncsw != ncsw) { |
if (curlwp->l_ncsw != ncsw) { |
| mutex_exit(&pc->pc_lock); |
mutex_exit(&pc->pc_lock); |
| pool_cache_cpu_exit(cc, s); |
return true; |
| return pool_cache_cpu_enter(pc, s); |
|
| } |
} |
| } |
} |
| |
|
| if ((pcg = pc->pc_fullgroups) != NULL) { |
if (__predict_true((pcg = pc->pc_fullgroups) != NULL)) { |
| /* |
/* |
| * If there's a full group, release our empty |
* If there's a full group, release our empty |
| * group back to the cache. Install the full |
* group back to the cache. Install the full |
| * group as cc_current and return. |
* group as cc_current and return. |
| */ |
*/ |
| if ((cur = cc->cc_current) != NULL) { |
if (__predict_true((cur = cc->cc_current) != &pcg_dummy)) { |
| KASSERT(cur->pcg_avail == 0); |
KASSERT(cur->pcg_avail == 0); |
| cur->pcg_next = pc->pc_emptygroups; |
cur->pcg_next = pc->pc_emptygroups; |
| pc->pc_emptygroups = cur; |
pc->pc_emptygroups = cur; |
| Line 2441 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| Line 2409 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| pc->pc_hits++; |
pc->pc_hits++; |
| pc->pc_nfull--; |
pc->pc_nfull--; |
| mutex_exit(&pc->pc_lock); |
mutex_exit(&pc->pc_lock); |
| return cc; |
return true; |
| } |
} |
| |
|
| /* |
/* |
| Line 2451 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| Line 2419 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| */ |
*/ |
| pc->pc_misses++; |
pc->pc_misses++; |
| mutex_exit(&pc->pc_lock); |
mutex_exit(&pc->pc_lock); |
| pool_cache_cpu_exit(cc, s); |
splx(s); |
| |
|
| object = pool_get(&pc->pc_pool, flags); |
object = pool_get(&pc->pc_pool, flags); |
| *objectp = object; |
*objectp = object; |
| if (object == NULL) |
if (__predict_false(object == NULL)) |
| return NULL; |
return false; |
| |
|
| if ((*pc->pc_ctor)(pc->pc_arg, object, flags) != 0) { |
if (__predict_false((*pc->pc_ctor)(pc->pc_arg, object, flags) != 0)) { |
| pool_put(&pc->pc_pool, object); |
pool_put(&pc->pc_pool, object); |
| *objectp = NULL; |
*objectp = NULL; |
| return NULL; |
return false; |
| } |
} |
| |
|
| KASSERT((((vaddr_t)object + pc->pc_pool.pr_itemoffset) & |
KASSERT((((vaddr_t)object + pc->pc_pool.pr_itemoffset) & |
| Line 2476 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| Line 2444 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| } |
} |
| |
|
| FREECHECK_OUT(&pc->pc_freecheck, object); |
FREECHECK_OUT(&pc->pc_freecheck, object); |
| return NULL; |
return false; |
| } |
} |
| |
|
| /* |
/* |
| Line 2499 pool_cache_get_paddr(pool_cache_t pc, in |
|
| Line 2467 pool_cache_get_paddr(pool_cache_t pc, in |
|
| } |
} |
| #endif |
#endif |
| |
|
| cc = pool_cache_cpu_enter(pc, &s); |
/* Lock out interrupts and disable preemption. */ |
| |
s = splvm(); |
| do { |
do { |
| /* Try and allocate an object from the current group. */ |
/* Try and allocate an object from the current group. */ |
| |
cc = pc->pc_cpus[curcpu()->ci_index]; |
| |
KASSERT(cc->cc_cache == pc); |
| pcg = cc->cc_current; |
pcg = cc->cc_current; |
| if (pcg != NULL && pcg->pcg_avail > 0) { |
if (__predict_true(pcg->pcg_avail > 0)) { |
| object = pcg->pcg_objects[--pcg->pcg_avail].pcgo_va; |
object = pcg->pcg_objects[--pcg->pcg_avail].pcgo_va; |
| if (pap != NULL) |
if (__predict_false(pap != NULL)) |
| *pap = pcg->pcg_objects[pcg->pcg_avail].pcgo_pa; |
*pap = pcg->pcg_objects[pcg->pcg_avail].pcgo_pa; |
| #if defined(DIAGNOSTIC) |
#if defined(DIAGNOSTIC) |
| pcg->pcg_objects[pcg->pcg_avail].pcgo_va = NULL; |
pcg->pcg_objects[pcg->pcg_avail].pcgo_va = NULL; |
| Line 2513 pool_cache_get_paddr(pool_cache_t pc, in |
|
| Line 2484 pool_cache_get_paddr(pool_cache_t pc, in |
|
| KASSERT(pcg->pcg_avail <= pcg->pcg_size); |
KASSERT(pcg->pcg_avail <= pcg->pcg_size); |
| KASSERT(object != NULL); |
KASSERT(object != NULL); |
| cc->cc_hits++; |
cc->cc_hits++; |
| pool_cache_cpu_exit(cc, &s); |
splx(s); |
| FREECHECK_OUT(&pc->pc_freecheck, object); |
FREECHECK_OUT(&pc->pc_freecheck, object); |
| return object; |
return object; |
| } |
} |
| Line 2523 pool_cache_get_paddr(pool_cache_t pc, in |
|
| Line 2494 pool_cache_get_paddr(pool_cache_t pc, in |
|
| * it with the current group and allocate from there. |
* it with the current group and allocate from there. |
| */ |
*/ |
| pcg = cc->cc_previous; |
pcg = cc->cc_previous; |
| if (pcg != NULL && pcg->pcg_avail > 0) { |
if (__predict_true(pcg->pcg_avail > 0)) { |
| cc->cc_previous = cc->cc_current; |
cc->cc_previous = cc->cc_current; |
| cc->cc_current = pcg; |
cc->cc_current = pcg; |
| continue; |
continue; |
| Line 2532 pool_cache_get_paddr(pool_cache_t pc, in |
|
| Line 2503 pool_cache_get_paddr(pool_cache_t pc, in |
|
| /* |
/* |
| * Can't allocate from either group: try the slow path. |
* Can't allocate from either group: try the slow path. |
| * If get_slow() allocated an object for us, or if |
* If get_slow() allocated an object for us, or if |
| * no more objects are available, it will return NULL. |
* no more objects are available, it will return false. |
| * Otherwise, we need to retry. |
* Otherwise, we need to retry. |
| */ |
*/ |
| cc = pool_cache_get_slow(cc, &s, &object, pap, flags); |
} while (pool_cache_get_slow(cc, s, &object, pap, flags)); |
| } while (cc != NULL); |
|
| |
|
| return object; |
return object; |
| } |
} |
| |
|
| pool_cache_cpu_t * __noinline |
static bool __noinline |
| pool_cache_put_slow(pool_cache_cpu_t *cc, int *s, void *object, paddr_t pa) |
pool_cache_put_slow(pool_cache_cpu_t *cc, int s, void *object) |
| { |
{ |
| pcg_t *pcg, *cur; |
pcg_t *pcg, *cur, *empty; |
| uint64_t ncsw; |
uint64_t ncsw; |
| pool_cache_t pc; |
pool_cache_t pc; |
| u_int nobj; |
|
| |
|
| pc = cc->cc_cache; |
pc = cc->cc_cache; |
| cc->cc_misses++; |
cc->cc_misses++; |
| |
|
| /* |
/* |
| * No free slots locally. Try to grab an empty, unused |
* If there appear to be no empty groups in the cache then |
| * group from the cache. |
* allocate one in advance. |
| */ |
*/ |
| if (!mutex_tryenter(&pc->pc_lock)) { |
empty = NULL; |
| ncsw = curlwp->l_ncsw; |
if (__predict_false(pc->pc_emptygroups == NULL)) { |
| |
if (__predict_false(pool_cache_disable)) { |
| |
empty = NULL; |
| |
} else if (pc->pc_pcgsize == PCG_NOBJECTS_LARGE) { |
| |
empty = pool_get(&pcg_large_pool, PR_NOWAIT); |
| |
} else { |
| |
empty = pool_get(&pcg_normal_pool, PR_NOWAIT); |
| |
} |
| |
} |
| |
|
| |
/* Lock the cache. */ |
| |
ncsw = curlwp->l_ncsw; |
| |
if (__predict_false(!mutex_tryenter(&pc->pc_lock))) { |
| mutex_enter(&pc->pc_lock); |
mutex_enter(&pc->pc_lock); |
| pc->pc_contended++; |
pc->pc_contended++; |
| |
} |
| |
|
| /* |
/* |
| * If we context switched while locking, then |
* If we speculatively allocated an empty group, link it into |
| * our view of the per-CPU data is invalid: |
* the cache's list. |
| * retry. |
*/ |
| */ |
if (empty != NULL) { |
| if (curlwp->l_ncsw != ncsw) { |
empty->pcg_avail = 0; |
| mutex_exit(&pc->pc_lock); |
empty->pcg_size = pc->pc_pcgsize; |
| pool_cache_cpu_exit(cc, s); |
empty->pcg_next = pc->pc_emptygroups; |
| return pool_cache_cpu_enter(pc, s); |
pc->pc_emptygroups = empty; |
| } |
pc->pc_nempty++; |
| |
pc->pc_misses++; |
| } |
} |
| |
|
| if ((pcg = pc->pc_emptygroups) != NULL) { |
/* |
| /* |
* If we context switched while locking, then our view of the |
| * If there's a empty group, release our full |
* per-CPU data is invalid: retry. |
| * group back to the cache. Install the empty |
*/ |
| * group and return. |
if (__predict_false(curlwp->l_ncsw != ncsw)) { |
| */ |
mutex_exit(&pc->pc_lock); |
| |
return true; |
| |
} |
| |
|
| |
/* |
| |
* If there's a empty group, release our full group back |
| |
* to the cache. Install the empty group to the local CPU |
| |
* and return. |
| |
*/ |
| |
if (__predict_true((pcg = pc->pc_emptygroups) != NULL)) { |
| KASSERT(pcg->pcg_avail == 0); |
KASSERT(pcg->pcg_avail == 0); |
| pc->pc_emptygroups = pcg->pcg_next; |
pc->pc_emptygroups = pcg->pcg_next; |
| if (cc->cc_previous == NULL) { |
if (__predict_false(cc->cc_previous == &pcg_dummy)) { |
| cc->cc_previous = pcg; |
cc->cc_previous = pcg; |
| } else { |
} else { |
| if ((cur = cc->cc_current) != NULL) { |
cur = cc->cc_current; |
| |
if (__predict_true(cur != &pcg_dummy)) { |
| KASSERT(cur->pcg_avail == pcg->pcg_size); |
KASSERT(cur->pcg_avail == pcg->pcg_size); |
| cur->pcg_next = pc->pc_fullgroups; |
cur->pcg_next = pc->pc_fullgroups; |
| pc->pc_fullgroups = cur; |
pc->pc_fullgroups = cur; |
| Line 2592 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| Line 2585 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| } |
} |
| cc->cc_current = pcg; |
cc->cc_current = pcg; |
| } |
} |
| pc->pc_hits++; |
pc->pc_hits += (empty == NULL); |
| pc->pc_nempty--; |
pc->pc_nempty--; |
| mutex_exit(&pc->pc_lock); |
mutex_exit(&pc->pc_lock); |
| return cc; |
return true; |
| } |
} |
| |
|
| /* |
/* |
| * Nothing available locally or in cache. Take the |
* Nothing available locally or in cache, and we didn't |
| * slow path and try to allocate a new group that we |
* allocate an empty group. Take the slow path and destroy |
| * can release to. |
* the object here and now. |
| */ |
*/ |
| pc->pc_misses++; |
pc->pc_misses++; |
| mutex_exit(&pc->pc_lock); |
mutex_exit(&pc->pc_lock); |
| pool_cache_cpu_exit(cc, s); |
splx(s); |
| |
pool_cache_destruct_object(pc, object); |
| /* |
|
| * If we can't allocate a new group, just throw the |
|
| * object away. |
|
| */ |
|
| nobj = pc->pc_pcgsize; |
|
| if (pool_cache_disable) { |
|
| pcg = NULL; |
|
| } else if (nobj == PCG_NOBJECTS_LARGE) { |
|
| pcg = pool_get(&pcg_large_pool, PR_NOWAIT); |
|
| } else { |
|
| pcg = pool_get(&pcg_normal_pool, PR_NOWAIT); |
|
| } |
|
| if (pcg == NULL) { |
|
| pool_cache_destruct_object(pc, object); |
|
| return NULL; |
|
| } |
|
| pcg->pcg_avail = 0; |
|
| pcg->pcg_size = nobj; |
|
| |
|
| /* |
|
| * Add the empty group to the cache and try again. |
|
| */ |
|
| mutex_enter(&pc->pc_lock); |
|
| pcg->pcg_next = pc->pc_emptygroups; |
|
| pc->pc_emptygroups = pcg; |
|
| pc->pc_nempty++; |
|
| mutex_exit(&pc->pc_lock); |
|
| |
|
| return pool_cache_cpu_enter(pc, s); |
return false; |
| } |
} |
| |
|
| /* |
/* |
| Line 2653 pool_cache_put_paddr(pool_cache_t pc, vo |
|
| Line 2619 pool_cache_put_paddr(pool_cache_t pc, vo |
|
| |
|
| FREECHECK_IN(&pc->pc_freecheck, object); |
FREECHECK_IN(&pc->pc_freecheck, object); |
| |
|
| cc = pool_cache_cpu_enter(pc, &s); |
/* Lock out interrupts and disable preemption. */ |
| |
s = splvm(); |
| do { |
do { |
| /* If the current group isn't full, release it there. */ |
/* If the current group isn't full, release it there. */ |
| |
cc = pc->pc_cpus[curcpu()->ci_index]; |
| |
KASSERT(cc->cc_cache == pc); |
| pcg = cc->cc_current; |
pcg = cc->cc_current; |
| if (pcg != NULL && pcg->pcg_avail < pcg->pcg_size) { |
if (__predict_true(pcg->pcg_avail < pcg->pcg_size)) { |
| pcg->pcg_objects[pcg->pcg_avail].pcgo_va = object; |
pcg->pcg_objects[pcg->pcg_avail].pcgo_va = object; |
| pcg->pcg_objects[pcg->pcg_avail].pcgo_pa = pa; |
pcg->pcg_objects[pcg->pcg_avail].pcgo_pa = pa; |
| pcg->pcg_avail++; |
pcg->pcg_avail++; |
| cc->cc_hits++; |
cc->cc_hits++; |
| pool_cache_cpu_exit(cc, &s); |
splx(s); |
| return; |
return; |
| } |
} |
| |
|
| /* |
/* |
| * That failed. If the previous group is empty, swap |
* That failed. If the previous group isn't full, swap |
| * it with the current group and try again. |
* it with the current group and try again. |
| */ |
*/ |
| pcg = cc->cc_previous; |
pcg = cc->cc_previous; |
| if (pcg != NULL && pcg->pcg_avail == 0) { |
if (__predict_true(pcg->pcg_avail < pcg->pcg_size)) { |
| cc->cc_previous = cc->cc_current; |
cc->cc_previous = cc->cc_current; |
| cc->cc_current = pcg; |
cc->cc_current = pcg; |
| continue; |
continue; |
| Line 2680 pool_cache_put_paddr(pool_cache_t pc, vo |
|
| Line 2649 pool_cache_put_paddr(pool_cache_t pc, vo |
|
| /* |
/* |
| * Can't free to either group: try the slow path. |
* Can't free to either group: try the slow path. |
| * If put_slow() releases the object for us, it |
* If put_slow() releases the object for us, it |
| * will return NULL. Otherwise we need to retry. |
* will return false. Otherwise we need to retry. |
| */ |
*/ |
| cc = pool_cache_put_slow(cc, &s, object, pa); |
} while (pool_cache_put_slow(cc, s, object)); |
| } while (cc != NULL); |
|
| } |
} |
| |
|
| /* |
/* |
| Line 2697 pool_cache_xcall(pool_cache_t pc) |
|
| Line 2665 pool_cache_xcall(pool_cache_t pc) |
|
| { |
{ |
| pool_cache_cpu_t *cc; |
pool_cache_cpu_t *cc; |
| pcg_t *prev, *cur, **list; |
pcg_t *prev, *cur, **list; |
| int s = 0; /* XXXgcc */ |
int s; |
| |
|
| cc = pool_cache_cpu_enter(pc, &s); |
|
| cur = cc->cc_current; |
|
| cc->cc_current = NULL; |
|
| prev = cc->cc_previous; |
|
| cc->cc_previous = NULL; |
|
| pool_cache_cpu_exit(cc, &s); |
|
| |
|
| /* |
|
| * XXXSMP Go to splvm to prevent kernel_lock from being taken, |
|
| * because locks at IPL_SOFTXXX are still spinlocks. Does not |
|
| * apply to IPL_SOFTBIO. Cross-call threads do not take the |
|
| * kernel_lock. |
|
| */ |
|
| s = splvm(); |
s = splvm(); |
| mutex_enter(&pc->pc_lock); |
mutex_enter(&pc->pc_lock); |
| if (cur != NULL) { |
cc = pc->pc_cpus[curcpu()->ci_index]; |
| |
cur = cc->cc_current; |
| |
cc->cc_current = &pcg_dummy; |
| |
prev = cc->cc_previous; |
| |
cc->cc_previous = &pcg_dummy; |
| |
if (cur != &pcg_dummy) { |
| if (cur->pcg_avail == cur->pcg_size) { |
if (cur->pcg_avail == cur->pcg_size) { |
| list = &pc->pc_fullgroups; |
list = &pc->pc_fullgroups; |
| pc->pc_nfull++; |
pc->pc_nfull++; |
| Line 2728 pool_cache_xcall(pool_cache_t pc) |
|
| Line 2688 pool_cache_xcall(pool_cache_t pc) |
|
| cur->pcg_next = *list; |
cur->pcg_next = *list; |
| *list = cur; |
*list = cur; |
| } |
} |
| if (prev != NULL) { |
if (prev != &pcg_dummy) { |
| if (prev->pcg_avail == prev->pcg_size) { |
if (prev->pcg_avail == prev->pcg_size) { |
| list = &pc->pc_fullgroups; |
list = &pc->pc_fullgroups; |
| pc->pc_nfull++; |
pc->pc_nfull++; |