| version 1.87.2.5, 2005/04/01 14:30:56 |
version 1.87.2.6, 2005/11/10 14:09:45 |
| Line 70 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 70 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| */ |
*/ |
| |
|
| /* List of all pools */ |
/* List of all pools */ |
| TAILQ_HEAD(,pool) pool_head = TAILQ_HEAD_INITIALIZER(pool_head); |
LIST_HEAD(,pool) pool_head = LIST_HEAD_INITIALIZER(pool_head); |
| |
|
| /* Private pool for page header structures */ |
/* Private pool for page header structures */ |
| #define PHPOOL_MAX 8 |
#define PHPOOL_MAX 8 |
| Line 112 struct pool_item_header { |
|
| Line 112 struct pool_item_header { |
|
| union { |
union { |
| /* !PR_NOTOUCH */ |
/* !PR_NOTOUCH */ |
| struct { |
struct { |
| TAILQ_HEAD(, pool_item) |
LIST_HEAD(, pool_item) |
| phu_itemlist; /* chunk list for this page */ |
phu_itemlist; /* chunk list for this page */ |
| } phu_normal; |
} phu_normal; |
| /* PR_NOTOUCH */ |
/* PR_NOTOUCH */ |
| Line 139 struct pool_item { |
|
| Line 139 struct pool_item { |
|
| #endif |
#endif |
| #define PI_MAGIC 0xdeadbeefU |
#define PI_MAGIC 0xdeadbeefU |
| /* Other entries use only this list entry */ |
/* Other entries use only this list entry */ |
| TAILQ_ENTRY(pool_item) pi_list; |
LIST_ENTRY(pool_item) pi_list; |
| }; |
}; |
| |
|
| #define POOL_NEEDS_CATCHUP(pp) \ |
#define POOL_NEEDS_CATCHUP(pp) \ |
| Line 174 struct pool_item { |
|
| Line 174 struct pool_item { |
|
| /* The cache group pool. */ |
/* The cache group pool. */ |
| static struct pool pcgpool; |
static struct pool pcgpool; |
| |
|
| static void pool_cache_reclaim(struct pool_cache *); |
static void pool_cache_reclaim(struct pool_cache *, struct pool_pagelist *, |
| |
struct pool_cache_grouplist *); |
| |
static void pcg_grouplist_free(struct pool_cache_grouplist *); |
| |
|
| static int pool_catchup(struct pool *); |
static int pool_catchup(struct pool *); |
| static void pool_prime_page(struct pool *, caddr_t, |
static void pool_prime_page(struct pool *, caddr_t, |
| Line 384 pr_find_pagehead(struct pool *pp, caddr_ |
|
| Line 386 pr_find_pagehead(struct pool *pp, caddr_ |
|
| return ph; |
return ph; |
| } |
} |
| |
|
| |
static void |
| |
pr_pagelist_free(struct pool *pp, struct pool_pagelist *pq) |
| |
{ |
| |
struct pool_item_header *ph; |
| |
int s; |
| |
|
| |
while ((ph = LIST_FIRST(pq)) != NULL) { |
| |
LIST_REMOVE(ph, ph_pagelist); |
| |
pool_allocator_free(pp, ph->ph_page); |
| |
if ((pp->pr_roflags & PR_PHINPAGE) == 0) { |
| |
s = splvm(); |
| |
pool_put(pp->pr_phpool, ph); |
| |
splx(s); |
| |
} |
| |
} |
| |
} |
| |
|
| /* |
/* |
| * Remove a page from the pool. |
* Remove a page from the pool. |
| */ |
*/ |
| Line 391 static __inline void |
|
| Line 410 static __inline void |
|
| pr_rmpage(struct pool *pp, struct pool_item_header *ph, |
pr_rmpage(struct pool *pp, struct pool_item_header *ph, |
| struct pool_pagelist *pq) |
struct pool_pagelist *pq) |
| { |
{ |
| int s; |
|
| |
|
| LOCK_ASSERT(!simple_lock_held(&pp->pr_slock) || pq != NULL); |
LOCK_ASSERT(simple_lock_held(&pp->pr_slock)); |
| |
|
| /* |
/* |
| * If the page was idle, decrement the idle page count. |
* If the page was idle, decrement the idle page count. |
| Line 411 pr_rmpage(struct pool *pp, struct pool_i |
|
| Line 429 pr_rmpage(struct pool *pp, struct pool_i |
|
| pp->pr_nitems -= pp->pr_itemsperpage; |
pp->pr_nitems -= pp->pr_itemsperpage; |
| |
|
| /* |
/* |
| * Unlink a page from the pool and release it (or queue it for release). |
* Unlink the page from the pool and queue it for release. |
| */ |
*/ |
| LIST_REMOVE(ph, ph_pagelist); |
LIST_REMOVE(ph, ph_pagelist); |
| if ((pp->pr_roflags & PR_PHINPAGE) == 0) |
if ((pp->pr_roflags & PR_PHINPAGE) == 0) |
| SPLAY_REMOVE(phtree, &pp->pr_phtree, ph); |
SPLAY_REMOVE(phtree, &pp->pr_phtree, ph); |
| if (pq) { |
LIST_INSERT_HEAD(pq, ph, ph_pagelist); |
| LIST_INSERT_HEAD(pq, ph, ph_pagelist); |
|
| } else { |
|
| pool_allocator_free(pp, ph->ph_page); |
|
| if ((pp->pr_roflags & PR_PHINPAGE) == 0) { |
|
| s = splvm(); |
|
| pool_put(pp->pr_phpool, ph); |
|
| splx(s); |
|
| } |
|
| } |
|
| pp->pr_npages--; |
pp->pr_npages--; |
| pp->pr_npagefree++; |
pp->pr_npagefree++; |
| |
|
| Line 529 pool_init(struct pool *pp, size_t size, |
|
| Line 539 pool_init(struct pool *pp, size_t size, |
|
| LIST_INIT(&pp->pr_emptypages); |
LIST_INIT(&pp->pr_emptypages); |
| LIST_INIT(&pp->pr_fullpages); |
LIST_INIT(&pp->pr_fullpages); |
| LIST_INIT(&pp->pr_partpages); |
LIST_INIT(&pp->pr_partpages); |
| TAILQ_INIT(&pp->pr_cachelist); |
LIST_INIT(&pp->pr_cachelist); |
| pp->pr_curpage = NULL; |
pp->pr_curpage = NULL; |
| pp->pr_npages = 0; |
pp->pr_npages = 0; |
| pp->pr_minitems = 0; |
pp->pr_minitems = 0; |
| Line 679 pool_init(struct pool *pp, size_t size, |
|
| Line 689 pool_init(struct pool *pp, size_t size, |
|
| |
|
| /* Insert into the list of all pools. */ |
/* Insert into the list of all pools. */ |
| simple_lock(&pool_head_slock); |
simple_lock(&pool_head_slock); |
| TAILQ_INSERT_TAIL(&pool_head, pp, pr_poollist); |
LIST_INSERT_HEAD(&pool_head, pp, pr_poollist); |
| simple_unlock(&pool_head_slock); |
simple_unlock(&pool_head_slock); |
| |
|
| /* Insert this into the list of pools using this allocator. */ |
/* Insert this into the list of pools using this allocator. */ |
| Line 696 pool_init(struct pool *pp, size_t size, |
|
| Line 706 pool_init(struct pool *pp, size_t size, |
|
| void |
void |
| pool_destroy(struct pool *pp) |
pool_destroy(struct pool *pp) |
| { |
{ |
| |
struct pool_pagelist pq; |
| struct pool_item_header *ph; |
struct pool_item_header *ph; |
| struct pool_cache *pc; |
|
| int s; |
int s; |
| |
|
| /* Locking order: pool_allocator -> pool */ |
/* Remove from global pool list */ |
| |
simple_lock(&pool_head_slock); |
| |
LIST_REMOVE(pp, pr_poollist); |
| |
if (drainpp == pp) |
| |
drainpp = NULL; |
| |
simple_unlock(&pool_head_slock); |
| |
|
| |
/* Remove this pool from its allocator's list of pools. */ |
| s = splvm(); |
s = splvm(); |
| simple_lock(&pp->pr_alloc->pa_slock); |
simple_lock(&pp->pr_alloc->pa_slock); |
| TAILQ_REMOVE(&pp->pr_alloc->pa_list, pp, pr_alloc_list); |
TAILQ_REMOVE(&pp->pr_alloc->pa_list, pp, pr_alloc_list); |
| simple_unlock(&pp->pr_alloc->pa_slock); |
simple_unlock(&pp->pr_alloc->pa_slock); |
| splx(s); |
splx(s); |
| |
|
| /* Destroy all caches for this pool. */ |
s = splvm(); |
| while ((pc = TAILQ_FIRST(&pp->pr_cachelist)) != NULL) |
simple_lock(&pp->pr_slock); |
| pool_cache_destroy(pc); |
|
| |
KASSERT(LIST_EMPTY(&pp->pr_cachelist)); |
| |
|
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| if (pp->pr_nout != 0) { |
if (pp->pr_nout != 0) { |
| Line 719 pool_destroy(struct pool *pp) |
|
| Line 737 pool_destroy(struct pool *pp) |
|
| } |
} |
| #endif |
#endif |
| |
|
| /* Remove all pages */ |
|
| while ((ph = LIST_FIRST(&pp->pr_emptypages)) != NULL) |
|
| pr_rmpage(pp, ph, NULL); |
|
| KASSERT(LIST_EMPTY(&pp->pr_fullpages)); |
KASSERT(LIST_EMPTY(&pp->pr_fullpages)); |
| KASSERT(LIST_EMPTY(&pp->pr_partpages)); |
KASSERT(LIST_EMPTY(&pp->pr_partpages)); |
| |
|
| /* Remove from global pool list */ |
/* Remove all pages */ |
| simple_lock(&pool_head_slock); |
LIST_INIT(&pq); |
| TAILQ_REMOVE(&pool_head, pp, pr_poollist); |
while ((ph = LIST_FIRST(&pp->pr_emptypages)) != NULL) |
| if (drainpp == pp) { |
pr_rmpage(pp, ph, &pq); |
| drainpp = NULL; |
|
| } |
simple_unlock(&pp->pr_slock); |
| simple_unlock(&pool_head_slock); |
splx(s); |
| |
|
| |
pr_pagelist_free(pp, &pq); |
| |
|
| #ifdef POOL_DIAGNOSTIC |
#ifdef POOL_DIAGNOSTIC |
| if ((pp->pr_roflags & PR_LOGGING) != 0) |
if ((pp->pr_roflags & PR_LOGGING) != 0) |
| Line 793 pool_get(struct pool *pp, int flags) |
|
| Line 810 pool_get(struct pool *pp, int flags) |
|
| (flags & PR_WAITOK) != 0)) |
(flags & PR_WAITOK) != 0)) |
| panic("pool_get: %s: must have NOWAIT", pp->pr_wchan); |
panic("pool_get: %s: must have NOWAIT", pp->pr_wchan); |
| |
|
| |
#endif /* DIAGNOSTIC */ |
| #ifdef LOCKDEBUG |
#ifdef LOCKDEBUG |
| if (flags & PR_WAITOK) |
if (flags & PR_WAITOK) |
| simple_lock_only_held(NULL, "pool_get(PR_WAITOK)"); |
simple_lock_only_held(NULL, "pool_get(PR_WAITOK)"); |
| |
SCHED_ASSERT_UNLOCKED(); |
| #endif |
#endif |
| #endif /* DIAGNOSTIC */ |
|
| |
|
| simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
| pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
| Line 944 pool_get(struct pool *pp, int flags) |
|
| Line 962 pool_get(struct pool *pp, int flags) |
|
| pr_log(pp, v, PRLOG_GET, file, line); |
pr_log(pp, v, PRLOG_GET, file, line); |
| #endif |
#endif |
| } else { |
} else { |
| v = pi = TAILQ_FIRST(&ph->ph_itemlist); |
v = pi = LIST_FIRST(&ph->ph_itemlist); |
| if (__predict_false(v == NULL)) { |
if (__predict_false(v == NULL)) { |
| pr_leave(pp); |
pr_leave(pp); |
| simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
| Line 976 pool_get(struct pool *pp, int flags) |
|
| Line 994 pool_get(struct pool *pp, int flags) |
|
| /* |
/* |
| * Remove from item list. |
* Remove from item list. |
| */ |
*/ |
| TAILQ_REMOVE(&ph->ph_itemlist, pi, pi_list); |
LIST_REMOVE(pi, pi_list); |
| } |
} |
| pp->pr_nitems--; |
pp->pr_nitems--; |
| pp->pr_nout++; |
pp->pr_nout++; |
| Line 998 pool_get(struct pool *pp, int flags) |
|
| Line 1016 pool_get(struct pool *pp, int flags) |
|
| if (ph->ph_nmissing == pp->pr_itemsperpage) { |
if (ph->ph_nmissing == pp->pr_itemsperpage) { |
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| if (__predict_false((pp->pr_roflags & PR_NOTOUCH) == 0 && |
if (__predict_false((pp->pr_roflags & PR_NOTOUCH) == 0 && |
| !TAILQ_EMPTY(&ph->ph_itemlist))) { |
!LIST_EMPTY(&ph->ph_itemlist))) { |
| pr_leave(pp); |
pr_leave(pp); |
| simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
| panic("pool_get: %s: nmissing inconsistent", |
panic("pool_get: %s: nmissing inconsistent", |
| Line 1037 pool_get(struct pool *pp, int flags) |
|
| Line 1055 pool_get(struct pool *pp, int flags) |
|
| * Internal version of pool_put(). Pool is already locked/entered. |
* Internal version of pool_put(). Pool is already locked/entered. |
| */ |
*/ |
| static void |
static void |
| pool_do_put(struct pool *pp, void *v) |
pool_do_put(struct pool *pp, void *v, struct pool_pagelist *pq) |
| { |
{ |
| struct pool_item *pi = v; |
struct pool_item *pi = v; |
| struct pool_item_header *ph; |
struct pool_item_header *ph; |
| Line 1045 pool_do_put(struct pool *pp, void *v) |
|
| Line 1063 pool_do_put(struct pool *pp, void *v) |
|
| int s; |
int s; |
| |
|
| LOCK_ASSERT(simple_lock_held(&pp->pr_slock)); |
LOCK_ASSERT(simple_lock_held(&pp->pr_slock)); |
| |
SCHED_ASSERT_UNLOCKED(); |
| |
|
| page = (caddr_t)((u_long)v & pp->pr_alloc->pa_pagemask); |
page = (caddr_t)((u_long)v & pp->pr_alloc->pa_pagemask); |
| |
|
| Line 1087 pool_do_put(struct pool *pp, void *v) |
|
| Line 1106 pool_do_put(struct pool *pp, void *v) |
|
| } |
} |
| #endif |
#endif |
| |
|
| TAILQ_INSERT_HEAD(&ph->ph_itemlist, pi, pi_list); |
LIST_INSERT_HEAD(&ph->ph_itemlist, pi, pi_list); |
| } |
} |
| KDASSERT(ph->ph_nmissing != 0); |
KDASSERT(ph->ph_nmissing != 0); |
| ph->ph_nmissing--; |
ph->ph_nmissing--; |
| Line 1125 pool_do_put(struct pool *pp, void *v) |
|
| Line 1144 pool_do_put(struct pool *pp, void *v) |
|
| if (pp->pr_npages > pp->pr_minpages && |
if (pp->pr_npages > pp->pr_minpages && |
| (pp->pr_npages > pp->pr_maxpages || |
(pp->pr_npages > pp->pr_maxpages || |
| (pp->pr_alloc->pa_flags & PA_WANT) != 0)) { |
(pp->pr_alloc->pa_flags & PA_WANT) != 0)) { |
| simple_unlock(&pp->pr_slock); |
pr_rmpage(pp, ph, pq); |
| pr_rmpage(pp, ph, NULL); |
|
| simple_lock(&pp->pr_slock); |
|
| } else { |
} else { |
| LIST_REMOVE(ph, ph_pagelist); |
LIST_REMOVE(ph, ph_pagelist); |
| LIST_INSERT_HEAD(&pp->pr_emptypages, ph, ph_pagelist); |
LIST_INSERT_HEAD(&pp->pr_emptypages, ph, ph_pagelist); |
| Line 1165 pool_do_put(struct pool *pp, void *v) |
|
| Line 1182 pool_do_put(struct pool *pp, void *v) |
|
| void |
void |
| _pool_put(struct pool *pp, void *v, const char *file, long line) |
_pool_put(struct pool *pp, void *v, const char *file, long line) |
| { |
{ |
| |
struct pool_pagelist pq; |
| |
|
| |
LIST_INIT(&pq); |
| |
|
| simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
| pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
| |
|
| pr_log(pp, v, PRLOG_PUT, file, line); |
pr_log(pp, v, PRLOG_PUT, file, line); |
| |
|
| pool_do_put(pp, v); |
pool_do_put(pp, v, &pq); |
| |
|
| pr_leave(pp); |
pr_leave(pp); |
| simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
| |
|
| |
pr_pagelist_free(pp, &pq); |
| } |
} |
| #undef pool_put |
#undef pool_put |
| #endif /* POOL_DIAGNOSTIC */ |
#endif /* POOL_DIAGNOSTIC */ |
| Line 1182 _pool_put(struct pool *pp, void *v, cons |
|
| Line 1204 _pool_put(struct pool *pp, void *v, cons |
|
| void |
void |
| pool_put(struct pool *pp, void *v) |
pool_put(struct pool *pp, void *v) |
| { |
{ |
| |
struct pool_pagelist pq; |
| |
|
| simple_lock(&pp->pr_slock); |
LIST_INIT(&pq); |
| |
|
| pool_do_put(pp, v); |
|
| |
|
| |
simple_lock(&pp->pr_slock); |
| |
pool_do_put(pp, v, &pq); |
| simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
| |
|
| |
pr_pagelist_free(pp, &pq); |
| } |
} |
| |
|
| #ifdef POOL_DIAGNOSTIC |
#ifdef POOL_DIAGNOSTIC |
| Line 1260 pool_prime_page(struct pool *pp, caddr_t |
|
| Line 1285 pool_prime_page(struct pool *pp, caddr_t |
|
| * Insert page header. |
* Insert page header. |
| */ |
*/ |
| LIST_INSERT_HEAD(&pp->pr_emptypages, ph, ph_pagelist); |
LIST_INSERT_HEAD(&pp->pr_emptypages, ph, ph_pagelist); |
| TAILQ_INIT(&ph->ph_itemlist); |
LIST_INIT(&ph->ph_itemlist); |
| ph->ph_page = storage; |
ph->ph_page = storage; |
| ph->ph_nmissing = 0; |
ph->ph_nmissing = 0; |
| s = splclock(); |
s = splclock(); |
| Line 1306 pool_prime_page(struct pool *pp, caddr_t |
|
| Line 1331 pool_prime_page(struct pool *pp, caddr_t |
|
| KASSERT(((((vaddr_t)pi) + ioff) & (align - 1)) == 0); |
KASSERT(((((vaddr_t)pi) + ioff) & (align - 1)) == 0); |
| |
|
| /* Insert on page list */ |
/* Insert on page list */ |
| TAILQ_INSERT_TAIL(&ph->ph_itemlist, pi, pi_list); |
LIST_INSERT_HEAD(&ph->ph_itemlist, pi, pi_list); |
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| pi->pi_magic = PI_MAGIC; |
pi->pi_magic = PI_MAGIC; |
| #endif |
#endif |
| Line 1447 pool_reclaim(struct pool *pp) |
|
| Line 1472 pool_reclaim(struct pool *pp) |
|
| { |
{ |
| struct pool_item_header *ph, *phnext; |
struct pool_item_header *ph, *phnext; |
| struct pool_cache *pc; |
struct pool_cache *pc; |
| struct timeval curtime; |
|
| struct pool_pagelist pq; |
struct pool_pagelist pq; |
| struct timeval diff; |
struct pool_cache_grouplist pcgl; |
| |
struct timeval curtime, diff; |
| int s; |
int s; |
| |
|
| if (pp->pr_drain_hook != NULL) { |
if (pp->pr_drain_hook != NULL) { |
| Line 1464 pool_reclaim(struct pool *pp) |
|
| Line 1489 pool_reclaim(struct pool *pp) |
|
| pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
| |
|
| LIST_INIT(&pq); |
LIST_INIT(&pq); |
| |
LIST_INIT(&pcgl); |
| |
|
| /* |
/* |
| * Reclaim items from the pool's caches. |
* Reclaim items from the pool's caches. |
| */ |
*/ |
| TAILQ_FOREACH(pc, &pp->pr_cachelist, pc_poollist) |
LIST_FOREACH(pc, &pp->pr_cachelist, pc_poollist) |
| pool_cache_reclaim(pc); |
pool_cache_reclaim(pc, &pq, &pcgl); |
| |
|
| s = splclock(); |
s = splclock(); |
| curtime = mono_time; |
curtime = mono_time; |
| Line 1500 pool_reclaim(struct pool *pp) |
|
| Line 1526 pool_reclaim(struct pool *pp) |
|
| |
|
| pr_leave(pp); |
pr_leave(pp); |
| simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
| if (LIST_EMPTY(&pq)) |
if (LIST_EMPTY(&pq) && LIST_EMPTY(&pcgl)) |
| return (0); |
return 0; |
| |
|
| while ((ph = LIST_FIRST(&pq)) != NULL) { |
|
| LIST_REMOVE(ph, ph_pagelist); |
|
| pool_allocator_free(pp, ph->ph_page); |
|
| if (pp->pr_roflags & PR_PHINPAGE) { |
|
| continue; |
|
| } |
|
| s = splvm(); |
|
| pool_put(pp->pr_phpool, ph); |
|
| splx(s); |
|
| } |
|
| |
|
| |
pr_pagelist_free(pp, &pq); |
| |
pcg_grouplist_free(&pcgl); |
| return (1); |
return (1); |
| } |
} |
| |
|
| Line 1532 pool_drain(void *arg) |
|
| Line 1549 pool_drain(void *arg) |
|
| s = splvm(); |
s = splvm(); |
| simple_lock(&pool_head_slock); |
simple_lock(&pool_head_slock); |
| if (drainpp == NULL) { |
if (drainpp == NULL) { |
| drainpp = TAILQ_FIRST(&pool_head); |
drainpp = LIST_FIRST(&pool_head); |
| } |
} |
| if (drainpp) { |
if (drainpp) { |
| pp = drainpp; |
pp = drainpp; |
| drainpp = TAILQ_NEXT(pp, pr_poollist); |
drainpp = LIST_NEXT(pp, pr_poollist); |
| } |
} |
| simple_unlock(&pool_head_slock); |
simple_unlock(&pool_head_slock); |
| pool_reclaim(pp); |
pool_reclaim(pp); |
| Line 1566 pool_print(struct pool *pp, const char * |
|
| Line 1583 pool_print(struct pool *pp, const char * |
|
| void |
void |
| pool_printit(struct pool *pp, const char *modif, void (*pr)(const char *, ...)) |
pool_printit(struct pool *pp, const char *modif, void (*pr)(const char *, ...)) |
| { |
{ |
| int didlock = 0; |
|
| |
|
| if (pp == NULL) { |
if (pp == NULL) { |
| (*pr)("Must specify a pool to print.\n"); |
(*pr)("Must specify a pool to print.\n"); |
| Line 1585 pool_printit(struct pool *pp, const char |
|
| Line 1601 pool_printit(struct pool *pp, const char |
|
| if (simple_lock_try(&pp->pr_slock) == 0) |
if (simple_lock_try(&pp->pr_slock) == 0) |
| (*pr)("WARNING: pool %s is locked\n", pp->pr_wchan); |
(*pr)("WARNING: pool %s is locked\n", pp->pr_wchan); |
| else |
else |
| didlock = 1; |
simple_unlock(&pp->pr_slock); |
| |
|
| pool_print1(pp, modif, pr); |
pool_print1(pp, modif, pr); |
| |
|
| if (didlock) |
|
| simple_unlock(&pp->pr_slock); |
|
| } |
} |
| |
|
| static void |
static void |
| Line 1609 pool_print_pagelist(struct pool *pp, str |
|
| Line 1622 pool_print_pagelist(struct pool *pp, str |
|
| (u_long)ph->ph_time.tv_usec); |
(u_long)ph->ph_time.tv_usec); |
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| if (!(pp->pr_roflags & PR_NOTOUCH)) { |
if (!(pp->pr_roflags & PR_NOTOUCH)) { |
| TAILQ_FOREACH(pi, &ph->ph_itemlist, pi_list) { |
LIST_FOREACH(pi, &ph->ph_itemlist, pi_list) { |
| if (pi->pi_magic != PI_MAGIC) { |
if (pi->pi_magic != PI_MAGIC) { |
| (*pr)("\t\t\titem %p, magic 0x%x\n", |
(*pr)("\t\t\titem %p, magic 0x%x\n", |
| pi, pi->pi_magic); |
pi, pi->pi_magic); |
| Line 1684 pool_print1(struct pool *pp, const char |
|
| Line 1697 pool_print1(struct pool *pp, const char |
|
| if (print_cache == 0) |
if (print_cache == 0) |
| goto skip_cache; |
goto skip_cache; |
| |
|
| TAILQ_FOREACH(pc, &pp->pr_cachelist, pc_poollist) { |
#define PR_GROUPLIST(pcg) \ |
| (*pr)("\tcache %p: allocfrom %p freeto %p\n", pc, |
(*pr)("\t\tgroup %p: avail %d\n", pcg, pcg->pcg_avail); \ |
| pc->pc_allocfrom, pc->pc_freeto); |
for (i = 0; i < PCG_NOBJECTS; i++) { \ |
| |
if (pcg->pcg_objects[i].pcgo_pa != \ |
| |
POOL_PADDR_INVALID) { \ |
| |
(*pr)("\t\t\t%p, 0x%llx\n", \ |
| |
pcg->pcg_objects[i].pcgo_va, \ |
| |
(unsigned long long) \ |
| |
pcg->pcg_objects[i].pcgo_pa); \ |
| |
} else { \ |
| |
(*pr)("\t\t\t%p\n", \ |
| |
pcg->pcg_objects[i].pcgo_va); \ |
| |
} \ |
| |
} |
| |
|
| |
LIST_FOREACH(pc, &pp->pr_cachelist, pc_poollist) { |
| |
(*pr)("\tcache %p\n", pc); |
| (*pr)("\t hits %lu misses %lu ngroups %lu nitems %lu\n", |
(*pr)("\t hits %lu misses %lu ngroups %lu nitems %lu\n", |
| pc->pc_hits, pc->pc_misses, pc->pc_ngroups, pc->pc_nitems); |
pc->pc_hits, pc->pc_misses, pc->pc_ngroups, pc->pc_nitems); |
| TAILQ_FOREACH(pcg, &pc->pc_grouplist, pcg_list) { |
(*pr)("\t full groups:\n"); |
| (*pr)("\t\tgroup %p: avail %d\n", pcg, pcg->pcg_avail); |
LIST_FOREACH(pcg, &pc->pc_fullgroups, pcg_list) { |
| for (i = 0; i < PCG_NOBJECTS; i++) { |
PR_GROUPLIST(pcg); |
| if (pcg->pcg_objects[i].pcgo_pa != |
} |
| POOL_PADDR_INVALID) { |
(*pr)("\t partial groups:\n"); |
| (*pr)("\t\t\t%p, 0x%llx\n", |
LIST_FOREACH(pcg, &pc->pc_partgroups, pcg_list) { |
| pcg->pcg_objects[i].pcgo_va, |
PR_GROUPLIST(pcg); |
| (unsigned long long) |
} |
| pcg->pcg_objects[i].pcgo_pa); |
(*pr)("\t empty groups:\n"); |
| } else { |
LIST_FOREACH(pcg, &pc->pc_emptygroups, pcg_list) { |
| (*pr)("\t\t\t%p\n", |
PR_GROUPLIST(pcg); |
| pcg->pcg_objects[i].pcgo_va); |
|
| } |
|
| } |
|
| } |
} |
| } |
} |
| |
#undef PR_GROUPLIST |
| |
|
| skip_cache: |
skip_cache: |
| pr_enter_check(pp, pr); |
pr_enter_check(pp, pr); |
| Line 1732 pool_chk_page(struct pool *pp, const cha |
|
| Line 1757 pool_chk_page(struct pool *pp, const cha |
|
| if ((pp->pr_roflags & PR_NOTOUCH) != 0) |
if ((pp->pr_roflags & PR_NOTOUCH) != 0) |
| return 0; |
return 0; |
| |
|
| for (pi = TAILQ_FIRST(&ph->ph_itemlist), n = 0; |
for (pi = LIST_FIRST(&ph->ph_itemlist), n = 0; |
| pi != NULL; |
pi != NULL; |
| pi = TAILQ_NEXT(pi,pi_list), n++) { |
pi = LIST_NEXT(pi,pi_list), n++) { |
| |
|
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| if (pi->pi_magic != PI_MAGIC) { |
if (pi->pi_magic != PI_MAGIC) { |
| Line 1811 pool_cache_init(struct pool_cache *pc, s |
|
| Line 1836 pool_cache_init(struct pool_cache *pc, s |
|
| void *arg) |
void *arg) |
| { |
{ |
| |
|
| TAILQ_INIT(&pc->pc_grouplist); |
LIST_INIT(&pc->pc_emptygroups); |
| |
LIST_INIT(&pc->pc_fullgroups); |
| |
LIST_INIT(&pc->pc_partgroups); |
| simple_lock_init(&pc->pc_slock); |
simple_lock_init(&pc->pc_slock); |
| |
|
| pc->pc_allocfrom = NULL; |
|
| pc->pc_freeto = NULL; |
|
| pc->pc_pool = pp; |
pc->pc_pool = pp; |
| |
|
| pc->pc_ctor = ctor; |
pc->pc_ctor = ctor; |
| Line 1830 pool_cache_init(struct pool_cache *pc, s |
|
| Line 1855 pool_cache_init(struct pool_cache *pc, s |
|
| pc->pc_nitems = 0; |
pc->pc_nitems = 0; |
| |
|
| simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
| TAILQ_INSERT_TAIL(&pp->pr_cachelist, pc, pc_poollist); |
LIST_INSERT_HEAD(&pp->pr_cachelist, pc, pc_poollist); |
| simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
| } |
} |
| |
|
| Line 1849 pool_cache_destroy(struct pool_cache *pc |
|
| Line 1874 pool_cache_destroy(struct pool_cache *pc |
|
| |
|
| /* ...and remove it from the pool's cache list. */ |
/* ...and remove it from the pool's cache list. */ |
| simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
| TAILQ_REMOVE(&pp->pr_cachelist, pc, pc_poollist); |
LIST_REMOVE(pc, pc_poollist); |
| simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
| } |
} |
| |
|
| Line 1885 pcg_put(struct pool_cache_group *pcg, vo |
|
| Line 1910 pcg_put(struct pool_cache_group *pcg, vo |
|
| pcg->pcg_objects[idx].pcgo_pa = pa; |
pcg->pcg_objects[idx].pcgo_pa = pa; |
| } |
} |
| |
|
| |
static void |
| |
pcg_grouplist_free(struct pool_cache_grouplist *pcgl) |
| |
{ |
| |
struct pool_cache_group *pcg; |
| |
int s; |
| |
|
| |
s = splvm(); |
| |
while ((pcg = LIST_FIRST(pcgl)) != NULL) { |
| |
LIST_REMOVE(pcg, pcg_list); |
| |
pool_put(&pcgpool, pcg); |
| |
} |
| |
splx(s); |
| |
} |
| |
|
| /* |
/* |
| * pool_cache_get{,_paddr}: |
* pool_cache_get{,_paddr}: |
| * |
* |
| Line 1904 pool_cache_get_paddr(struct pool_cache * |
|
| Line 1943 pool_cache_get_paddr(struct pool_cache * |
|
| |
|
| simple_lock(&pc->pc_slock); |
simple_lock(&pc->pc_slock); |
| |
|
| if ((pcg = pc->pc_allocfrom) == NULL) { |
pcg = LIST_FIRST(&pc->pc_partgroups); |
| TAILQ_FOREACH(pcg, &pc->pc_grouplist, pcg_list) { |
if (pcg == NULL) { |
| if (pcg->pcg_avail != 0) { |
pcg = LIST_FIRST(&pc->pc_fullgroups); |
| pc->pc_allocfrom = pcg; |
if (pcg != NULL) { |
| goto have_group; |
LIST_REMOVE(pcg, pcg_list); |
| } |
LIST_INSERT_HEAD(&pc->pc_partgroups, pcg, pcg_list); |
| } |
} |
| |
} |
| |
if (pcg == NULL) { |
| |
|
| /* |
/* |
| * No groups with any available objects. Allocate |
* No groups with any available objects. Allocate |
| Line 1937 pool_cache_get_paddr(struct pool_cache * |
|
| Line 1978 pool_cache_get_paddr(struct pool_cache * |
|
| return (object); |
return (object); |
| } |
} |
| |
|
| have_group: |
|
| pc->pc_hits++; |
pc->pc_hits++; |
| pc->pc_nitems--; |
pc->pc_nitems--; |
| object = pcg_get(pcg, pap); |
object = pcg_get(pcg, pap); |
| |
|
| if (pcg->pcg_avail == 0) |
if (pcg->pcg_avail == 0) { |
| pc->pc_allocfrom = NULL; |
LIST_REMOVE(pcg, pcg_list); |
| |
LIST_INSERT_HEAD(&pc->pc_emptygroups, pcg, pcg_list); |
| |
} |
| simple_unlock(&pc->pc_slock); |
simple_unlock(&pc->pc_slock); |
| |
|
| return (object); |
return (object); |
| Line 1964 pool_cache_put_paddr(struct pool_cache * |
|
| Line 2005 pool_cache_put_paddr(struct pool_cache * |
|
| |
|
| simple_lock(&pc->pc_slock); |
simple_lock(&pc->pc_slock); |
| |
|
| if ((pcg = pc->pc_freeto) == NULL) { |
pcg = LIST_FIRST(&pc->pc_partgroups); |
| TAILQ_FOREACH(pcg, &pc->pc_grouplist, pcg_list) { |
if (pcg == NULL) { |
| if (pcg->pcg_avail != PCG_NOBJECTS) { |
pcg = LIST_FIRST(&pc->pc_emptygroups); |
| pc->pc_freeto = pcg; |
if (pcg != NULL) { |
| goto have_group; |
LIST_REMOVE(pcg, pcg_list); |
| } |
LIST_INSERT_HEAD(&pc->pc_partgroups, pcg, pcg_list); |
| } |
} |
| |
} |
| |
if (pcg == NULL) { |
| |
|
| /* |
/* |
| * No empty groups to free the object to. Attempt to |
* No empty groups to free the object to. Attempt to |
| Line 1980 pool_cache_put_paddr(struct pool_cache * |
|
| Line 2023 pool_cache_put_paddr(struct pool_cache * |
|
| s = splvm(); |
s = splvm(); |
| pcg = pool_get(&pcgpool, PR_NOWAIT); |
pcg = pool_get(&pcgpool, PR_NOWAIT); |
| splx(s); |
splx(s); |
| if (pcg != NULL) { |
if (pcg == NULL) { |
| memset(pcg, 0, sizeof(*pcg)); |
|
| simple_lock(&pc->pc_slock); |
|
| pc->pc_ngroups++; |
|
| TAILQ_INSERT_TAIL(&pc->pc_grouplist, pcg, pcg_list); |
|
| if (pc->pc_freeto == NULL) |
|
| pc->pc_freeto = pcg; |
|
| goto have_group; |
|
| } |
|
| |
|
| /* |
/* |
| * Unable to allocate a cache group; destruct the object |
* Unable to allocate a cache group; destruct the object |
| * and free it back to the pool. |
* and free it back to the pool. |
| */ |
*/ |
| pool_cache_destruct_object(pc, object); |
pool_cache_destruct_object(pc, object); |
| return; |
return; |
| |
} |
| |
memset(pcg, 0, sizeof(*pcg)); |
| |
simple_lock(&pc->pc_slock); |
| |
pc->pc_ngroups++; |
| |
LIST_INSERT_HEAD(&pc->pc_partgroups, pcg, pcg_list); |
| } |
} |
| |
|
| have_group: |
|
| pc->pc_nitems++; |
pc->pc_nitems++; |
| pcg_put(pcg, object, pa); |
pcg_put(pcg, object, pa); |
| |
|
| if (pcg->pcg_avail == PCG_NOBJECTS) |
if (pcg->pcg_avail == PCG_NOBJECTS) { |
| pc->pc_freeto = NULL; |
LIST_REMOVE(pcg, pcg_list); |
| |
LIST_INSERT_HEAD(&pc->pc_fullgroups, pcg, pcg_list); |
| |
} |
| simple_unlock(&pc->pc_slock); |
simple_unlock(&pc->pc_slock); |
| } |
} |
| |
|
| Line 2023 pool_cache_destruct_object(struct pool_c |
|
| Line 2063 pool_cache_destruct_object(struct pool_c |
|
| pool_put(pc->pc_pool, object); |
pool_put(pc->pc_pool, object); |
| } |
} |
| |
|
| /* |
|
| * pool_cache_do_invalidate: |
|
| * |
|
| * This internal function implements pool_cache_invalidate() and |
|
| * pool_cache_reclaim(). |
|
| */ |
|
| static void |
static void |
| pool_cache_do_invalidate(struct pool_cache *pc, int free_groups, |
pool_do_cache_invalidate_grouplist(struct pool_cache_grouplist *pcgsl, |
| void (*putit)(struct pool *, void *)) |
struct pool_cache *pc, struct pool_pagelist *pq, |
| |
struct pool_cache_grouplist *pcgdl) |
| { |
{ |
| struct pool_cache_group *pcg, *npcg; |
struct pool_cache_group *pcg, *npcg; |
| void *object; |
void *object; |
| int s; |
|
| |
|
| for (pcg = TAILQ_FIRST(&pc->pc_grouplist); pcg != NULL; |
for (pcg = LIST_FIRST(pcgsl); pcg != NULL; pcg = npcg) { |
| pcg = npcg) { |
npcg = LIST_NEXT(pcg, pcg_list); |
| npcg = TAILQ_NEXT(pcg, pcg_list); |
|
| while (pcg->pcg_avail != 0) { |
while (pcg->pcg_avail != 0) { |
| pc->pc_nitems--; |
pc->pc_nitems--; |
| object = pcg_get(pcg, NULL); |
object = pcg_get(pcg, NULL); |
| if (pcg->pcg_avail == 0 && pc->pc_allocfrom == pcg) |
|
| pc->pc_allocfrom = NULL; |
|
| if (pc->pc_dtor != NULL) |
if (pc->pc_dtor != NULL) |
| (*pc->pc_dtor)(pc->pc_arg, object); |
(*pc->pc_dtor)(pc->pc_arg, object); |
| (*putit)(pc->pc_pool, object); |
pool_do_put(pc->pc_pool, object, pq); |
| } |
|
| if (free_groups) { |
|
| pc->pc_ngroups--; |
|
| TAILQ_REMOVE(&pc->pc_grouplist, pcg, pcg_list); |
|
| if (pc->pc_freeto == pcg) |
|
| pc->pc_freeto = NULL; |
|
| s = splvm(); |
|
| pool_put(&pcgpool, pcg); |
|
| splx(s); |
|
| } |
} |
| |
pc->pc_ngroups--; |
| |
LIST_REMOVE(pcg, pcg_list); |
| |
LIST_INSERT_HEAD(pcgdl, pcg, pcg_list); |
| } |
} |
| } |
} |
| |
|
| |
static void |
| |
pool_do_cache_invalidate(struct pool_cache *pc, struct pool_pagelist *pq, |
| |
struct pool_cache_grouplist *pcgl) |
| |
{ |
| |
|
| |
LOCK_ASSERT(simple_lock_held(&pc->pc_slock)); |
| |
LOCK_ASSERT(simple_lock_held(&pc->pc_pool->pr_slock)); |
| |
|
| |
pool_do_cache_invalidate_grouplist(&pc->pc_fullgroups, pc, pq, pcgl); |
| |
pool_do_cache_invalidate_grouplist(&pc->pc_partgroups, pc, pq, pcgl); |
| |
|
| |
KASSERT(LIST_EMPTY(&pc->pc_partgroups)); |
| |
KASSERT(LIST_EMPTY(&pc->pc_fullgroups)); |
| |
KASSERT(pc->pc_nitems == 0); |
| |
} |
| |
|
| /* |
/* |
| * pool_cache_invalidate: |
* pool_cache_invalidate: |
| * |
* |
| Line 2070 pool_cache_do_invalidate(struct pool_cac |
|
| Line 2111 pool_cache_do_invalidate(struct pool_cac |
|
| void |
void |
| pool_cache_invalidate(struct pool_cache *pc) |
pool_cache_invalidate(struct pool_cache *pc) |
| { |
{ |
| |
struct pool_pagelist pq; |
| |
struct pool_cache_grouplist pcgl; |
| |
|
| |
LIST_INIT(&pq); |
| |
LIST_INIT(&pcgl); |
| |
|
| simple_lock(&pc->pc_slock); |
simple_lock(&pc->pc_slock); |
| pool_cache_do_invalidate(pc, 0, pool_put); |
simple_lock(&pc->pc_pool->pr_slock); |
| |
|
| |
pool_do_cache_invalidate(pc, &pq, &pcgl); |
| |
|
| |
simple_unlock(&pc->pc_pool->pr_slock); |
| simple_unlock(&pc->pc_slock); |
simple_unlock(&pc->pc_slock); |
| |
|
| |
pr_pagelist_free(pc->pc_pool, &pq); |
| |
pcg_grouplist_free(&pcgl); |
| } |
} |
| |
|
| /* |
/* |
| Line 2082 pool_cache_invalidate(struct pool_cache |
|
| Line 2135 pool_cache_invalidate(struct pool_cache |
|
| * Reclaim a pool cache for pool_reclaim(). |
* Reclaim a pool cache for pool_reclaim(). |
| */ |
*/ |
| static void |
static void |
| pool_cache_reclaim(struct pool_cache *pc) |
pool_cache_reclaim(struct pool_cache *pc, struct pool_pagelist *pq, |
| |
struct pool_cache_grouplist *pcgl) |
| { |
{ |
| |
|
| simple_lock(&pc->pc_slock); |
/* |
| pool_cache_do_invalidate(pc, 1, pool_do_put); |
* We're locking in the wrong order (normally pool_cache -> pool, |
| |
* but the pool is already locked when we get here), so we have |
| |
* to use trylock. If we can't lock the pool_cache, it's not really |
| |
* a big deal here. |
| |
*/ |
| |
if (simple_lock_try(&pc->pc_slock) == 0) |
| |
return; |
| |
|
| |
pool_do_cache_invalidate(pc, pq, pcgl); |
| |
|
| simple_unlock(&pc->pc_slock); |
simple_unlock(&pc->pc_slock); |
| } |
} |
| |
|