version 1.125.2.3, 2007/03/24 14:56:04 |
version 1.128.2.4, 2007/03/22 12:30:29 |
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/* $NetBSD$ */ |
/* $NetBSD$ */ |
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/*- |
/*- |
* Copyright (c) 1997, 1999, 2000, 2002 The NetBSD Foundation, Inc. |
* Copyright (c) 1997, 1999, 2000, 2002, 2007 The NetBSD Foundation, Inc. |
* All rights reserved. |
* All rights reserved. |
* |
* |
* This code is derived from software contributed to The NetBSD Foundation |
* This code is derived from software contributed to The NetBSD Foundation |
Line 101 int pool_inactive_time = 10; |
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Line 101 int pool_inactive_time = 10; |
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/* Next candidate for drainage (see pool_drain()) */ |
/* Next candidate for drainage (see pool_drain()) */ |
static struct pool *drainpp; |
static struct pool *drainpp; |
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/* This spin lock protects both pool_head and drainpp. */ |
/* This lock protects both pool_head and drainpp. */ |
struct simplelock pool_head_slock = SIMPLELOCK_INITIALIZER; |
static kmutex_t pool_head_lock; |
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typedef uint8_t pool_item_freelist_t; |
typedef uint8_t pool_item_freelist_t; |
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pr_pagelist_free(struct pool *pp, struct pool_pagelist *pq) |
pr_pagelist_free(struct pool *pp, struct pool_pagelist *pq) |
{ |
{ |
struct pool_item_header *ph; |
struct pool_item_header *ph; |
int s; |
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while ((ph = LIST_FIRST(pq)) != NULL) { |
while ((ph = LIST_FIRST(pq)) != NULL) { |
LIST_REMOVE(ph, ph_pagelist); |
LIST_REMOVE(ph, ph_pagelist); |
pool_allocator_free(pp, ph->ph_page); |
pool_allocator_free(pp, ph->ph_page); |
if ((pp->pr_roflags & PR_PHINPAGE) == 0) { |
if ((pp->pr_roflags & PR_PHINPAGE) == 0) |
s = splvm(); |
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pool_put(pp->pr_phpool, ph); |
pool_put(pp->pr_phpool, ph); |
splx(s); |
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} |
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} |
} |
} |
} |
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Line 443 pr_rmpage(struct pool *pp, struct pool_i |
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Line 439 pr_rmpage(struct pool *pp, struct pool_i |
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struct pool_pagelist *pq) |
struct pool_pagelist *pq) |
{ |
{ |
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LOCK_ASSERT(simple_lock_held(&pp->pr_slock)); |
KASSERT(mutex_owned(&pp->pr_lock)); |
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/* |
/* |
* If the page was idle, decrement the idle page count. |
* If the page was idle, decrement the idle page count. |
Line 557 pool_subsystem_init(void) |
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Line 553 pool_subsystem_init(void) |
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__link_set_decl(pools, struct link_pool_init); |
__link_set_decl(pools, struct link_pool_init); |
struct link_pool_init * const *pi; |
struct link_pool_init * const *pi; |
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mutex_init(&pool_head_lock, MUTEX_DEFAULT, IPL_NONE); |
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__link_set_foreach(pi, pools) |
__link_set_foreach(pi, pools) |
pool_init((*pi)->pp, (*pi)->size, (*pi)->align, |
pool_init((*pi)->pp, (*pi)->size, (*pi)->align, |
(*pi)->align_offset, (*pi)->flags, (*pi)->wchan, |
(*pi)->align_offset, (*pi)->flags, (*pi)->wchan, |
Line 584 pool_init(struct pool *pp, size_t size, |
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Line 582 pool_init(struct pool *pp, size_t size, |
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struct pool *pp1; |
struct pool *pp1; |
#endif |
#endif |
size_t trysize, phsize; |
size_t trysize, phsize; |
int off, slack, s; |
int off, slack; |
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KASSERT((1UL << (CHAR_BIT * sizeof(pool_item_freelist_t))) - 2 >= |
KASSERT((1UL << (CHAR_BIT * sizeof(pool_item_freelist_t))) - 2 >= |
PHPOOL_FREELIST_NELEM(PHPOOL_MAX - 1)); |
PHPOOL_FREELIST_NELEM(PHPOOL_MAX - 1)); |
Line 625 pool_init(struct pool *pp, size_t size, |
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Line 623 pool_init(struct pool *pp, size_t size, |
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TAILQ_INIT(&palloc->pa_list); |
TAILQ_INIT(&palloc->pa_list); |
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simple_lock_init(&palloc->pa_slock); |
mutex_init(&palloc->pa_lock, MUTEX_DRIVER, IPL_VM); |
palloc->pa_pagemask = ~(palloc->pa_pagesz - 1); |
palloc->pa_pagemask = ~(palloc->pa_pagesz - 1); |
palloc->pa_pageshift = ffs(palloc->pa_pagesz) - 1; |
palloc->pa_pageshift = ffs(palloc->pa_pagesz) - 1; |
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Line 769 pool_init(struct pool *pp, size_t size, |
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Line 767 pool_init(struct pool *pp, size_t size, |
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pp->pr_entered_file = NULL; |
pp->pr_entered_file = NULL; |
pp->pr_entered_line = 0; |
pp->pr_entered_line = 0; |
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simple_lock_init(&pp->pr_slock); |
mutex_init(&pp->pr_lock, MUTEX_DRIVER, ipl); |
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cv_init(&pp->pr_cv, wchan); |
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pp->pr_ipl = ipl; |
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/* |
/* |
* Initialize private page header pool and cache magazine pool if we |
* Initialize private page header pool and cache magazine pool if we |
Line 802 pool_init(struct pool *pp, size_t size, |
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Line 802 pool_init(struct pool *pp, size_t size, |
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0, "pcgpool", &pool_allocator_meta, IPL_VM); |
0, "pcgpool", &pool_allocator_meta, IPL_VM); |
} |
} |
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/* Insert into the list of all pools. */ |
if (__predict_true(!cold)) { |
simple_lock(&pool_head_slock); |
/* Insert into the list of all pools. */ |
LIST_INSERT_HEAD(&pool_head, pp, pr_poollist); |
mutex_enter(&pool_head_lock); |
simple_unlock(&pool_head_slock); |
LIST_INSERT_HEAD(&pool_head, pp, pr_poollist); |
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mutex_exit(&pool_head_lock); |
/* Insert this into the list of pools using this allocator. */ |
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s = splvm(); |
/* Insert this into the list of pools using this allocator. */ |
simple_lock(&palloc->pa_slock); |
mutex_enter(&palloc->pa_lock); |
TAILQ_INSERT_TAIL(&palloc->pa_list, pp, pr_alloc_list); |
TAILQ_INSERT_TAIL(&palloc->pa_list, pp, pr_alloc_list); |
simple_unlock(&palloc->pa_slock); |
mutex_exit(&palloc->pa_lock); |
splx(s); |
} else { |
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LIST_INSERT_HEAD(&pool_head, pp, pr_poollist); |
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TAILQ_INSERT_TAIL(&palloc->pa_list, pp, pr_alloc_list); |
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} |
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pool_reclaim_register(pp); |
pool_reclaim_register(pp); |
} |
} |
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Line 824 pool_destroy(struct pool *pp) |
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Line 828 pool_destroy(struct pool *pp) |
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{ |
{ |
struct pool_pagelist pq; |
struct pool_pagelist pq; |
struct pool_item_header *ph; |
struct pool_item_header *ph; |
int s; |
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/* Remove from global pool list */ |
/* Remove from global pool list */ |
simple_lock(&pool_head_slock); |
mutex_enter(&pool_head_lock); |
LIST_REMOVE(pp, pr_poollist); |
LIST_REMOVE(pp, pr_poollist); |
if (drainpp == pp) |
if (drainpp == pp) |
drainpp = NULL; |
drainpp = NULL; |
simple_unlock(&pool_head_slock); |
mutex_exit(&pool_head_lock); |
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/* Remove this pool from its allocator's list of pools. */ |
/* Remove this pool from its allocator's list of pools. */ |
pool_reclaim_unregister(pp); |
pool_reclaim_unregister(pp); |
s = splvm(); |
mutex_enter(&pp->pr_alloc->pa_lock); |
simple_lock(&pp->pr_alloc->pa_slock); |
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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); |
mutex_exit(&pp->pr_alloc->pa_lock); |
splx(s); |
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s = splvm(); |
mutex_enter(&pp->pr_lock); |
simple_lock(&pp->pr_slock); |
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KASSERT(LIST_EMPTY(&pp->pr_cachelist)); |
KASSERT(LIST_EMPTY(&pp->pr_cachelist)); |
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Line 862 pool_destroy(struct pool *pp) |
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Line 862 pool_destroy(struct pool *pp) |
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while ((ph = LIST_FIRST(&pp->pr_emptypages)) != NULL) |
while ((ph = LIST_FIRST(&pp->pr_emptypages)) != NULL) |
pr_rmpage(pp, ph, &pq); |
pr_rmpage(pp, ph, &pq); |
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simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
splx(s); |
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pr_pagelist_free(pp, &pq); |
pr_pagelist_free(pp, &pq); |
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Line 871 pool_destroy(struct pool *pp) |
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Line 870 pool_destroy(struct pool *pp) |
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if ((pp->pr_roflags & PR_LOGGING) != 0) |
if ((pp->pr_roflags & PR_LOGGING) != 0) |
free(pp->pr_log, M_TEMP); |
free(pp->pr_log, M_TEMP); |
#endif |
#endif |
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cv_destroy(&pp->pr_cv); |
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mutex_destroy(&pp->pr_lock); |
} |
} |
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void |
void |
Line 890 static struct pool_item_header * |
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Line 892 static struct pool_item_header * |
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pool_alloc_item_header(struct pool *pp, void *storage, int flags) |
pool_alloc_item_header(struct pool *pp, void *storage, int flags) |
{ |
{ |
struct pool_item_header *ph; |
struct pool_item_header *ph; |
int s; |
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LOCK_ASSERT(simple_lock_held(&pp->pr_slock) == 0); |
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if ((pp->pr_roflags & PR_PHINPAGE) != 0) |
if ((pp->pr_roflags & PR_PHINPAGE) != 0) |
ph = (struct pool_item_header *) ((char *)storage + pp->pr_phoffset); |
ph = (struct pool_item_header *) ((char *)storage + pp->pr_phoffset); |
else { |
else |
s = splvm(); |
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ph = pool_get(pp->pr_phpool, flags); |
ph = pool_get(pp->pr_phpool, flags); |
splx(s); |
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} |
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return (ph); |
return (ph); |
} |
} |
Line 933 pool_get(struct pool *pp, int flags) |
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Line 929 pool_get(struct pool *pp, int flags) |
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ASSERT_SLEEPABLE(NULL, "pool_get(PR_WAITOK)"); |
ASSERT_SLEEPABLE(NULL, "pool_get(PR_WAITOK)"); |
#endif |
#endif |
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simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
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startover: |
startover: |
Line 945 pool_get(struct pool *pp, int flags) |
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Line 941 pool_get(struct pool *pp, int flags) |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (__predict_false(pp->pr_nout > pp->pr_hardlimit)) { |
if (__predict_false(pp->pr_nout > pp->pr_hardlimit)) { |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
panic("pool_get: %s: crossed hard limit", pp->pr_wchan); |
panic("pool_get: %s: crossed hard limit", pp->pr_wchan); |
} |
} |
#endif |
#endif |
Line 957 pool_get(struct pool *pp, int flags) |
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Line 953 pool_get(struct pool *pp, int flags) |
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* and check the hardlimit condition again. |
* and check the hardlimit condition again. |
*/ |
*/ |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
(*pp->pr_drain_hook)(pp->pr_drain_hook_arg, flags); |
(*pp->pr_drain_hook)(pp->pr_drain_hook_arg, flags); |
simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
if (pp->pr_nout < pp->pr_hardlimit) |
if (pp->pr_nout < pp->pr_hardlimit) |
goto startover; |
goto startover; |
Line 972 pool_get(struct pool *pp, int flags) |
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Line 968 pool_get(struct pool *pp, int flags) |
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*/ |
*/ |
pp->pr_flags |= PR_WANTED; |
pp->pr_flags |= PR_WANTED; |
pr_leave(pp); |
pr_leave(pp); |
ltsleep(pp, PSWP, pp->pr_wchan, 0, &pp->pr_slock); |
cv_wait(&pp->pr_cv, &pp->pr_lock); |
pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
goto startover; |
goto startover; |
} |
} |
Line 988 pool_get(struct pool *pp, int flags) |
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Line 984 pool_get(struct pool *pp, int flags) |
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pp->pr_nfail++; |
pp->pr_nfail++; |
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pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
return (NULL); |
return (NULL); |
} |
} |
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Line 1003 pool_get(struct pool *pp, int flags) |
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Line 999 pool_get(struct pool *pp, int flags) |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pp->pr_nitems != 0) { |
if (pp->pr_nitems != 0) { |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
printf("pool_get: %s: curpage NULL, nitems %u\n", |
printf("pool_get: %s: curpage NULL, nitems %u\n", |
pp->pr_wchan, pp->pr_nitems); |
pp->pr_wchan, pp->pr_nitems); |
panic("pool_get: nitems inconsistent"); |
panic("pool_get: nitems inconsistent"); |
Line 1030 pool_get(struct pool *pp, int flags) |
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Line 1026 pool_get(struct pool *pp, int flags) |
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pp->pr_nfail++; |
pp->pr_nfail++; |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
return (NULL); |
return (NULL); |
} |
} |
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Line 1041 pool_get(struct pool *pp, int flags) |
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Line 1037 pool_get(struct pool *pp, int flags) |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (__predict_false(ph->ph_nmissing == pp->pr_itemsperpage)) { |
if (__predict_false(ph->ph_nmissing == pp->pr_itemsperpage)) { |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
panic("pool_get: %s: page empty", pp->pr_wchan); |
panic("pool_get: %s: page empty", pp->pr_wchan); |
} |
} |
#endif |
#endif |
Line 1053 pool_get(struct pool *pp, int flags) |
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Line 1049 pool_get(struct pool *pp, int flags) |
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v = pi = LIST_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); |
mutex_exit(&pp->pr_lock); |
panic("pool_get: %s: page empty", pp->pr_wchan); |
panic("pool_get: %s: page empty", pp->pr_wchan); |
} |
} |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (__predict_false(pp->pr_nitems == 0)) { |
if (__predict_false(pp->pr_nitems == 0)) { |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
printf("pool_get: %s: items on itemlist, nitems %u\n", |
printf("pool_get: %s: items on itemlist, nitems %u\n", |
pp->pr_wchan, pp->pr_nitems); |
pp->pr_wchan, pp->pr_nitems); |
panic("pool_get: nitems inconsistent"); |
panic("pool_get: nitems inconsistent"); |
Line 1106 pool_get(struct pool *pp, int flags) |
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Line 1102 pool_get(struct pool *pp, int flags) |
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if (__predict_false((pp->pr_roflags & PR_NOTOUCH) == 0 && |
if (__predict_false((pp->pr_roflags & PR_NOTOUCH) == 0 && |
!LIST_EMPTY(&ph->ph_itemlist))) { |
!LIST_EMPTY(&ph->ph_itemlist))) { |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
panic("pool_get: %s: nmissing inconsistent", |
panic("pool_get: %s: nmissing inconsistent", |
pp->pr_wchan); |
pp->pr_wchan); |
} |
} |
Line 1135 pool_get(struct pool *pp, int flags) |
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Line 1131 pool_get(struct pool *pp, int flags) |
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*/ |
*/ |
} |
} |
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simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
KASSERT((((vaddr_t)v + pp->pr_itemoffset) & (pp->pr_align - 1)) == 0); |
KASSERT((((vaddr_t)v + pp->pr_itemoffset) & (pp->pr_align - 1)) == 0); |
FREECHECK_OUT(&pp->pr_freecheck, v); |
FREECHECK_OUT(&pp->pr_freecheck, v); |
return (v); |
return (v); |
Line 1150 pool_do_put(struct pool *pp, void *v, st |
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Line 1146 pool_do_put(struct pool *pp, void *v, st |
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struct pool_item *pi = v; |
struct pool_item *pi = v; |
struct pool_item_header *ph; |
struct pool_item_header *ph; |
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LOCK_ASSERT(simple_lock_held(&pp->pr_slock)); |
KASSERT(mutex_owned(&pp->pr_lock)); |
FREECHECK_IN(&pp->pr_freecheck, v); |
FREECHECK_IN(&pp->pr_freecheck, v); |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
Line 1166 pool_do_put(struct pool *pp, void *v, st |
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Line 1162 pool_do_put(struct pool *pp, void *v, st |
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panic("pool_put: %s: page header missing", pp->pr_wchan); |
panic("pool_put: %s: page header missing", pp->pr_wchan); |
} |
} |
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#ifdef LOCKDEBUG |
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/* |
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* Check if we're freeing a locked simple lock. |
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*/ |
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simple_lock_freecheck(pi, (char *)pi + pp->pr_size); |
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#endif |
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/* |
/* |
* Return to item list. |
* Return to item list. |
*/ |
*/ |
Line 1208 pool_do_put(struct pool *pp, void *v, st |
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Line 1197 pool_do_put(struct pool *pp, void *v, st |
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pp->pr_flags &= ~PR_WANTED; |
pp->pr_flags &= ~PR_WANTED; |
if (ph->ph_nmissing == 0) |
if (ph->ph_nmissing == 0) |
pp->pr_nidle++; |
pp->pr_nidle++; |
wakeup((void *)pp); |
cv_broadcast(&pp->pr_cv); |
return; |
return; |
} |
} |
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Line 1270 _pool_put(struct pool *pp, void *v, cons |
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Line 1259 _pool_put(struct pool *pp, void *v, cons |
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LIST_INIT(&pq); |
LIST_INIT(&pq); |
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simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
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pr_log(pp, v, PRLOG_PUT, file, line); |
pr_log(pp, v, PRLOG_PUT, file, line); |
Line 1278 _pool_put(struct pool *pp, void *v, cons |
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Line 1267 _pool_put(struct pool *pp, void *v, cons |
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pool_do_put(pp, v, &pq); |
pool_do_put(pp, v, &pq); |
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pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
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pr_pagelist_free(pp, &pq); |
pr_pagelist_free(pp, &pq); |
} |
} |
Line 1292 pool_put(struct pool *pp, void *v) |
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Line 1281 pool_put(struct pool *pp, void *v) |
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LIST_INIT(&pq); |
LIST_INIT(&pq); |
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simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
pool_do_put(pp, v, &pq); |
pool_do_put(pp, v, &pq); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
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pr_pagelist_free(pp, &pq); |
pr_pagelist_free(pp, &pq); |
} |
} |
Line 1317 pool_grow(struct pool *pp, int flags) |
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Line 1306 pool_grow(struct pool *pp, int flags) |
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struct pool_item_header *ph = NULL; |
struct pool_item_header *ph = NULL; |
char *cp; |
char *cp; |
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simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
cp = pool_allocator_alloc(pp, flags); |
cp = pool_allocator_alloc(pp, flags); |
if (__predict_true(cp != NULL)) { |
if (__predict_true(cp != NULL)) { |
ph = pool_alloc_item_header(pp, cp, flags); |
ph = pool_alloc_item_header(pp, cp, flags); |
Line 1326 pool_grow(struct pool *pp, int flags) |
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Line 1315 pool_grow(struct pool *pp, int flags) |
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if (cp != NULL) { |
if (cp != NULL) { |
pool_allocator_free(pp, cp); |
pool_allocator_free(pp, cp); |
} |
} |
simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
return ENOMEM; |
return ENOMEM; |
} |
} |
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simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
pool_prime_page(pp, cp, ph); |
pool_prime_page(pp, cp, ph); |
pp->pr_npagealloc++; |
pp->pr_npagealloc++; |
return 0; |
return 0; |
Line 1345 pool_prime(struct pool *pp, int n) |
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Line 1334 pool_prime(struct pool *pp, int n) |
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int newpages; |
int newpages; |
int error = 0; |
int error = 0; |
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simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
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newpages = roundup(n, pp->pr_itemsperpage) / pp->pr_itemsperpage; |
newpages = roundup(n, pp->pr_itemsperpage) / pp->pr_itemsperpage; |
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Line 1360 pool_prime(struct pool *pp, int n) |
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Line 1349 pool_prime(struct pool *pp, int n) |
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if (pp->pr_minpages >= pp->pr_maxpages) |
if (pp->pr_minpages >= pp->pr_maxpages) |
pp->pr_maxpages = pp->pr_minpages + 1; /* XXX */ |
pp->pr_maxpages = pp->pr_minpages + 1; /* XXX */ |
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simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
return error; |
return error; |
} |
} |
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Line 1378 pool_prime_page(struct pool *pp, void *s |
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Line 1367 pool_prime_page(struct pool *pp, void *s |
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const unsigned int ioff = pp->pr_itemoffset; |
const unsigned int ioff = pp->pr_itemoffset; |
int n; |
int n; |
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|
LOCK_ASSERT(simple_lock_held(&pp->pr_slock)); |
KASSERT(mutex_owned(&pp->pr_lock)); |
|
|
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if ((pp->pr_roflags & PR_NOALIGN) == 0 && |
if ((pp->pr_roflags & PR_NOALIGN) == 0 && |
|
|
pool_setlowat(struct pool *pp, int n) |
pool_setlowat(struct pool *pp, int n) |
{ |
{ |
|
|
simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
|
|
pp->pr_minitems = n; |
pp->pr_minitems = n; |
pp->pr_minpages = (n == 0) |
pp->pr_minpages = (n == 0) |
Line 1509 pool_setlowat(struct pool *pp, int n) |
|
Line 1498 pool_setlowat(struct pool *pp, int n) |
|
*/ |
*/ |
} |
} |
|
|
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
} |
} |
|
|
void |
void |
pool_sethiwat(struct pool *pp, int n) |
pool_sethiwat(struct pool *pp, int n) |
{ |
{ |
|
|
simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
|
|
pp->pr_maxpages = (n == 0) |
pp->pr_maxpages = (n == 0) |
? 0 |
? 0 |
: roundup(n, pp->pr_itemsperpage) / pp->pr_itemsperpage; |
: roundup(n, pp->pr_itemsperpage) / pp->pr_itemsperpage; |
|
|
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
} |
} |
|
|
void |
void |
pool_sethardlimit(struct pool *pp, int n, const char *warnmess, int ratecap) |
pool_sethardlimit(struct pool *pp, int n, const char *warnmess, int ratecap) |
{ |
{ |
|
|
simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
|
|
pp->pr_hardlimit = n; |
pp->pr_hardlimit = n; |
pp->pr_hardlimit_warning = warnmess; |
pp->pr_hardlimit_warning = warnmess; |
Line 1545 pool_sethardlimit(struct pool *pp, int n |
|
Line 1534 pool_sethardlimit(struct pool *pp, int n |
|
? 0 |
? 0 |
: roundup(n, pp->pr_itemsperpage) / pp->pr_itemsperpage; |
: roundup(n, pp->pr_itemsperpage) / pp->pr_itemsperpage; |
|
|
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
} |
} |
|
|
/* |
/* |
Line 1571 pool_reclaim(struct pool *pp) |
|
Line 1560 pool_reclaim(struct pool *pp) |
|
(*pp->pr_drain_hook)(pp->pr_drain_hook_arg, PR_NOWAIT); |
(*pp->pr_drain_hook)(pp->pr_drain_hook_arg, PR_NOWAIT); |
} |
} |
|
|
if (simple_lock_try(&pp->pr_slock) == 0) |
if (mutex_tryenter(&pp->pr_lock) == 0) |
return (0); |
return (0); |
pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
|
|
Line 1611 pool_reclaim(struct pool *pp) |
|
Line 1600 pool_reclaim(struct pool *pp) |
|
} |
} |
|
|
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
if (LIST_EMPTY(&pq) && LIST_EMPTY(&pcgl)) |
if (LIST_EMPTY(&pq) && LIST_EMPTY(&pcgl)) |
return 0; |
return 0; |
|
|
Line 1632 pool_drain(void *arg) |
|
Line 1621 pool_drain(void *arg) |
|
int s; |
int s; |
|
|
pp = NULL; |
pp = NULL; |
s = splvm(); |
s = splvm(); /* XXX why? */ |
simple_lock(&pool_head_slock); |
mutex_enter(&pool_head_lock); |
if (drainpp == NULL) { |
if (drainpp == NULL) { |
drainpp = LIST_FIRST(&pool_head); |
drainpp = LIST_FIRST(&pool_head); |
} |
} |
Line 1641 pool_drain(void *arg) |
|
Line 1630 pool_drain(void *arg) |
|
pp = drainpp; |
pp = drainpp; |
drainpp = LIST_NEXT(pp, pr_poollist); |
drainpp = LIST_NEXT(pp, pr_poollist); |
} |
} |
simple_unlock(&pool_head_slock); |
mutex_exit(&pool_head_lock); |
if (pp) |
if (pp) |
pool_reclaim(pp); |
pool_reclaim(pp); |
splx(s); |
splx(s); |
Line 1653 pool_drain(void *arg) |
|
Line 1642 pool_drain(void *arg) |
|
void |
void |
pool_print(struct pool *pp, const char *modif) |
pool_print(struct pool *pp, const char *modif) |
{ |
{ |
int s; |
|
|
|
s = splvm(); |
if (mutex_tryenter(&pp->pr_lock) == 0) { |
if (simple_lock_try(&pp->pr_slock) == 0) { |
|
printf("pool %s is locked; try again later\n", |
printf("pool %s is locked; try again later\n", |
pp->pr_wchan); |
pp->pr_wchan); |
splx(s); |
|
return; |
return; |
} |
} |
pool_print1(pp, modif, printf); |
pool_print1(pp, modif, printf); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
splx(s); |
|
} |
} |
|
|
void |
void |
Line 1672 pool_printall(const char *modif, void (* |
|
Line 1657 pool_printall(const char *modif, void (* |
|
{ |
{ |
struct pool *pp; |
struct pool *pp; |
|
|
if (simple_lock_try(&pool_head_slock) == 0) { |
if (mutex_tryenter(&pool_head_lock) == 0) { |
(*pr)("WARNING: pool_head_slock is locked\n"); |
(*pr)("WARNING: pool_head_slock is locked\n"); |
} else { |
} else { |
simple_unlock(&pool_head_slock); |
mutex_exit(&pool_head_lock); |
} |
} |
|
|
LIST_FOREACH(pp, &pool_head, pr_poollist) { |
LIST_FOREACH(pp, &pool_head, pr_poollist) { |
Line 1697 pool_printit(struct pool *pp, const char |
|
Line 1682 pool_printit(struct pool *pp, const char |
|
* other processors should be paused. We can skip locking |
* other processors should be paused. We can skip locking |
* the pool in this case. |
* the pool in this case. |
* |
* |
* We do a simple_lock_try() just to print the lock |
* We do a mutex_tryenter() just to print the lock |
* status, however. |
* status, however. |
*/ |
*/ |
|
|
if (simple_lock_try(&pp->pr_slock) == 0) |
if (mutex_tryenter(&pp->pr_lock) == 0) |
(*pr)("WARNING: pool %s is locked\n", pp->pr_wchan); |
(*pr)("WARNING: pool %s is locked\n", pp->pr_wchan); |
else |
else |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
|
|
pool_print1(pp, modif, pr); |
pool_print1(pp, modif, pr); |
} |
} |
Line 1903 pool_chk(struct pool *pp, const char *la |
|
Line 1888 pool_chk(struct pool *pp, const char *la |
|
struct pool_item_header *ph; |
struct pool_item_header *ph; |
int r = 0; |
int r = 0; |
|
|
simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
LIST_FOREACH(ph, &pp->pr_emptypages, ph_pagelist) { |
LIST_FOREACH(ph, &pp->pr_emptypages, ph_pagelist) { |
r = pool_chk_page(pp, label, ph); |
r = pool_chk_page(pp, label, ph); |
if (r) { |
if (r) { |
Line 1924 pool_chk(struct pool *pp, const char *la |
|
Line 1909 pool_chk(struct pool *pp, const char *la |
|
} |
} |
|
|
out: |
out: |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
return (r); |
return (r); |
} |
} |
|
|
Line 1946 pool_cache_init(struct pool_cache *pc, s |
|
Line 1931 pool_cache_init(struct pool_cache *pc, s |
|
LIST_INIT(&pc->pc_emptygroups); |
LIST_INIT(&pc->pc_emptygroups); |
LIST_INIT(&pc->pc_fullgroups); |
LIST_INIT(&pc->pc_fullgroups); |
LIST_INIT(&pc->pc_partgroups); |
LIST_INIT(&pc->pc_partgroups); |
simple_lock_init(&pc->pc_slock); |
mutex_init(&pc->pc_lock, MUTEX_DRIVER, pp->pr_ipl); |
|
|
pc->pc_pool = pp; |
pc->pc_pool = pp; |
|
|
Line 1961 pool_cache_init(struct pool_cache *pc, s |
|
Line 1946 pool_cache_init(struct pool_cache *pc, s |
|
|
|
pc->pc_nitems = 0; |
pc->pc_nitems = 0; |
|
|
simple_lock(&pp->pr_slock); |
if (__predict_true(!cold)) { |
LIST_INSERT_HEAD(&pp->pr_cachelist, pc, pc_poollist); |
mutex_enter(&pp->pr_lock); |
simple_unlock(&pp->pr_slock); |
LIST_INSERT_HEAD(&pp->pr_cachelist, pc, pc_poollist); |
|
mutex_exit(&pp->pr_lock); |
|
} else |
|
LIST_INSERT_HEAD(&pp->pr_cachelist, pc, pc_poollist); |
} |
} |
|
|
/* |
/* |
Line 1980 pool_cache_destroy(struct pool_cache *pc |
|
Line 1968 pool_cache_destroy(struct pool_cache *pc |
|
pool_cache_invalidate(pc); |
pool_cache_invalidate(pc); |
|
|
/* ...and remove it from the pool's cache list. */ |
/* ...and remove it from the pool's cache list. */ |
simple_lock(&pp->pr_slock); |
mutex_enter(&pp->pr_lock); |
LIST_REMOVE(pc, pc_poollist); |
LIST_REMOVE(pc, pc_poollist); |
simple_unlock(&pp->pr_slock); |
mutex_exit(&pp->pr_lock); |
|
|
|
mutex_destroy(&pc->pc_lock); |
} |
} |
|
|
static inline void * |
static inline void * |
|
|
pcg_grouplist_free(struct pool_cache_grouplist *pcgl) |
pcg_grouplist_free(struct pool_cache_grouplist *pcgl) |
{ |
{ |
struct pool_cache_group *pcg; |
struct pool_cache_group *pcg; |
int s; |
|
|
|
s = splvm(); |
|
while ((pcg = LIST_FIRST(pcgl)) != NULL) { |
while ((pcg = LIST_FIRST(pcgl)) != NULL) { |
LIST_REMOVE(pcg, pcg_list); |
LIST_REMOVE(pcg, pcg_list); |
pool_put(&pcgpool, pcg); |
pool_put(&pcgpool, pcg); |
} |
} |
splx(s); |
|
} |
} |
|
|
/* |
/* |
Line 2048 pool_cache_get_paddr(struct pool_cache * |
|
Line 2035 pool_cache_get_paddr(struct pool_cache * |
|
ASSERT_SLEEPABLE(NULL, "pool_cache_get(PR_WAITOK)"); |
ASSERT_SLEEPABLE(NULL, "pool_cache_get(PR_WAITOK)"); |
#endif |
#endif |
|
|
simple_lock(&pc->pc_slock); |
mutex_enter(&pc->pc_lock); |
|
|
pcg = LIST_FIRST(&pc->pc_partgroups); |
pcg = LIST_FIRST(&pc->pc_partgroups); |
if (pcg == NULL) { |
if (pcg == NULL) { |
Line 2067 pool_cache_get_paddr(struct pool_cache * |
|
Line 2054 pool_cache_get_paddr(struct pool_cache * |
|
* when the object is freed back to the cache. |
* when the object is freed back to the cache. |
*/ |
*/ |
pc->pc_misses++; |
pc->pc_misses++; |
simple_unlock(&pc->pc_slock); |
mutex_exit(&pc->pc_lock); |
object = pool_get(pc->pc_pool, flags); |
object = pool_get(pc->pc_pool, flags); |
if (object != NULL && pc->pc_ctor != NULL) { |
if (object != NULL && pc->pc_ctor != NULL) { |
if ((*pc->pc_ctor)(pc->pc_arg, object, flags) != 0) { |
if ((*pc->pc_ctor)(pc->pc_arg, object, flags) != 0) { |
Line 2097 pool_cache_get_paddr(struct pool_cache * |
|
Line 2084 pool_cache_get_paddr(struct pool_cache * |
|
LIST_REMOVE(pcg, pcg_list); |
LIST_REMOVE(pcg, pcg_list); |
LIST_INSERT_HEAD(&pc->pc_emptygroups, pcg, pcg_list); |
LIST_INSERT_HEAD(&pc->pc_emptygroups, pcg, pcg_list); |
} |
} |
simple_unlock(&pc->pc_slock); |
mutex_exit(&pc->pc_lock); |
|
|
KASSERT((((vaddr_t)object + pc->pc_pool->pr_itemoffset) & |
KASSERT((((vaddr_t)object + pc->pc_pool->pr_itemoffset) & |
(pc->pc_pool->pr_align - 1)) == 0); |
(pc->pc_pool->pr_align - 1)) == 0); |
|
|
pool_cache_put_paddr(struct pool_cache *pc, void *object, paddr_t pa) |
pool_cache_put_paddr(struct pool_cache *pc, void *object, paddr_t pa) |
{ |
{ |
struct pool_cache_group *pcg; |
struct pool_cache_group *pcg; |
int s; |
|
|
|
FREECHECK_IN(&pc->pc_freecheck, object); |
FREECHECK_IN(&pc->pc_freecheck, object); |
|
|
Line 2123 pool_cache_put_paddr(struct pool_cache * |
|
Line 2109 pool_cache_put_paddr(struct pool_cache * |
|
goto destruct; |
goto destruct; |
} |
} |
|
|
simple_lock(&pc->pc_slock); |
mutex_enter(&pc->pc_lock); |
|
|
pcg = LIST_FIRST(&pc->pc_partgroups); |
pcg = LIST_FIRST(&pc->pc_partgroups); |
if (pcg == NULL) { |
if (pcg == NULL) { |
Line 2139 pool_cache_put_paddr(struct pool_cache * |
|
Line 2125 pool_cache_put_paddr(struct pool_cache * |
|
* No empty groups to free the object to. Attempt to |
* No empty groups to free the object to. Attempt to |
* allocate one. |
* allocate one. |
*/ |
*/ |
simple_unlock(&pc->pc_slock); |
mutex_exit(&pc->pc_lock); |
s = splvm(); |
|
pcg = pool_get(&pcgpool, PR_NOWAIT); |
pcg = pool_get(&pcgpool, PR_NOWAIT); |
splx(s); |
|
if (pcg == NULL) { |
if (pcg == NULL) { |
destruct: |
destruct: |
|
|
|
|
return; |
return; |
} |
} |
memset(pcg, 0, sizeof(*pcg)); |
memset(pcg, 0, sizeof(*pcg)); |
simple_lock(&pc->pc_slock); |
mutex_enter(&pc->pc_lock); |
pc->pc_ngroups++; |
pc->pc_ngroups++; |
LIST_INSERT_HEAD(&pc->pc_partgroups, pcg, pcg_list); |
LIST_INSERT_HEAD(&pc->pc_partgroups, pcg, pcg_list); |
} |
} |
|
|
LIST_REMOVE(pcg, pcg_list); |
LIST_REMOVE(pcg, pcg_list); |
LIST_INSERT_HEAD(&pc->pc_fullgroups, pcg, pcg_list); |
LIST_INSERT_HEAD(&pc->pc_fullgroups, pcg, pcg_list); |
} |
} |
simple_unlock(&pc->pc_slock); |
mutex_exit(&pc->pc_lock); |
} |
} |
|
|
/* |
/* |
Line 2212 pool_do_cache_invalidate(struct pool_cac |
|
Line 2196 pool_do_cache_invalidate(struct pool_cac |
|
struct pool_cache_grouplist *pcgl) |
struct pool_cache_grouplist *pcgl) |
{ |
{ |
|
|
LOCK_ASSERT(simple_lock_held(&pc->pc_slock)); |
KASSERT(mutex_owned(&pc->pc_lock)); |
LOCK_ASSERT(simple_lock_held(&pc->pc_pool->pr_slock)); |
KASSERT(mutex_owned(&pc->pc_pool->pr_lock)); |
|
|
pool_do_cache_invalidate_grouplist(&pc->pc_fullgroups, pc, pq, pcgl); |
pool_do_cache_invalidate_grouplist(&pc->pc_fullgroups, pc, pq, pcgl); |
pool_do_cache_invalidate_grouplist(&pc->pc_partgroups, pc, pq, pcgl); |
pool_do_cache_invalidate_grouplist(&pc->pc_partgroups, pc, pq, pcgl); |
Line 2238 pool_cache_invalidate(struct pool_cache |
|
Line 2222 pool_cache_invalidate(struct pool_cache |
|
LIST_INIT(&pq); |
LIST_INIT(&pq); |
LIST_INIT(&pcgl); |
LIST_INIT(&pcgl); |
|
|
simple_lock(&pc->pc_slock); |
mutex_enter(&pc->pc_lock); |
simple_lock(&pc->pc_pool->pr_slock); |
mutex_enter(&pc->pc_pool->pr_lock); |
|
|
pool_do_cache_invalidate(pc, &pq, &pcgl); |
pool_do_cache_invalidate(pc, &pq, &pcgl); |
|
|
simple_unlock(&pc->pc_pool->pr_slock); |
mutex_exit(&pc->pc_pool->pr_lock); |
simple_unlock(&pc->pc_slock); |
mutex_exit(&pc->pc_lock); |
|
|
pr_pagelist_free(pc->pc_pool, &pq); |
pr_pagelist_free(pc->pc_pool, &pq); |
pcg_grouplist_free(&pcgl); |
pcg_grouplist_free(&pcgl); |
Line 2266 pool_cache_reclaim(struct pool_cache *pc |
|
Line 2250 pool_cache_reclaim(struct pool_cache *pc |
|
* to use trylock. If we can't lock the pool_cache, it's not really |
* to use trylock. If we can't lock the pool_cache, it's not really |
* a big deal here. |
* a big deal here. |
*/ |
*/ |
if (simple_lock_try(&pc->pc_slock) == 0) |
if (mutex_tryenter(&pc->pc_lock) == 0) |
return; |
return; |
|
|
pool_do_cache_invalidate(pc, pq, pcgl); |
pool_do_cache_invalidate(pc, pq, pcgl); |
|
|
simple_unlock(&pc->pc_slock); |
mutex_exit(&pc->pc_lock); |
} |
} |
|
|
/* |
/* |
Line 2341 pool_allocator_alloc(struct pool *pp, in |
|
Line 2325 pool_allocator_alloc(struct pool *pp, in |
|
struct pool_allocator *pa = pp->pr_alloc; |
struct pool_allocator *pa = pp->pr_alloc; |
void *res; |
void *res; |
|
|
LOCK_ASSERT(!simple_lock_held(&pp->pr_slock)); |
|
|
|
res = (*pa->pa_alloc)(pp, flags); |
res = (*pa->pa_alloc)(pp, flags); |
if (res == NULL && (flags & PR_WAITOK) == 0) { |
if (res == NULL && (flags & PR_WAITOK) == 0) { |
/* |
/* |
Line 2363 pool_allocator_free(struct pool *pp, voi |
|
Line 2345 pool_allocator_free(struct pool *pp, voi |
|
{ |
{ |
struct pool_allocator *pa = pp->pr_alloc; |
struct pool_allocator *pa = pp->pr_alloc; |
|
|
LOCK_ASSERT(!simple_lock_held(&pp->pr_slock)); |
|
|
|
(*pa->pa_free)(pp, v); |
(*pa->pa_free)(pp, v); |
} |
} |
|
|
Line 2403 pool_page_free_meta(struct pool *pp, voi |
|
Line 2383 pool_page_free_meta(struct pool *pp, voi |
|
void * |
void * |
pool_subpage_alloc(struct pool *pp, int flags) |
pool_subpage_alloc(struct pool *pp, int flags) |
{ |
{ |
void *v; |
return pool_get(&psppool, flags); |
int s; |
|
s = splvm(); |
|
v = pool_get(&psppool, flags); |
|
splx(s); |
|
return v; |
|
} |
} |
|
|
void |
void |
pool_subpage_free(struct pool *pp, void *v) |
pool_subpage_free(struct pool *pp, void *v) |
{ |
{ |
int s; |
|
s = splvm(); |
|
pool_put(&psppool, v); |
pool_put(&psppool, v); |
splx(s); |
|
} |
} |
|
|
/* We don't provide a real nointr allocator. Maybe later. */ |
/* We don't provide a real nointr allocator. Maybe later. */ |