| version 1.190, 2011/09/27 01:02:39 |
version 1.190.2.2, 2012/05/23 10:08:11 |
|
|
| __KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
| |
|
| #include "opt_ddb.h" |
#include "opt_ddb.h" |
| #include "opt_pool.h" |
|
| #include "opt_poollog.h" |
|
| #include "opt_lockdebug.h" |
#include "opt_lockdebug.h" |
| |
|
| #include <sys/param.h> |
#include <sys/param.h> |
| Line 45 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 43 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| #include <sys/proc.h> |
#include <sys/proc.h> |
| #include <sys/errno.h> |
#include <sys/errno.h> |
| #include <sys/kernel.h> |
#include <sys/kernel.h> |
| #include <sys/malloc.h> |
#include <sys/vmem.h> |
| #include <sys/pool.h> |
#include <sys/pool.h> |
| #include <sys/syslog.h> |
#include <sys/syslog.h> |
| #include <sys/debug.h> |
#include <sys/debug.h> |
| Line 55 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 53 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| #include <sys/atomic.h> |
#include <sys/atomic.h> |
| |
|
| #include <uvm/uvm_extern.h> |
#include <uvm/uvm_extern.h> |
| #ifdef DIAGNOSTIC |
|
| #include <uvm/uvm_km.h> /* uvm_km_va_drain */ |
|
| #endif |
|
| |
|
| /* |
/* |
| * Pool resource management utility. |
* Pool resource management utility. |
| Line 86 static struct pool phpool[PHPOOL_MAX]; |
|
| Line 81 static struct pool phpool[PHPOOL_MAX]; |
|
| static struct pool psppool; |
static struct pool psppool; |
| #endif |
#endif |
| |
|
| static SLIST_HEAD(, pool_allocator) pa_deferinitq = |
|
| SLIST_HEAD_INITIALIZER(pa_deferinitq); |
|
| |
|
| static void *pool_page_alloc_meta(struct pool *, int); |
static void *pool_page_alloc_meta(struct pool *, int); |
| static void pool_page_free_meta(struct pool *, void *); |
static void pool_page_free_meta(struct pool *, void *); |
| |
|
| /* allocator for pool metadata */ |
/* allocator for pool metadata */ |
| struct pool_allocator pool_allocator_meta = { |
struct pool_allocator pool_allocator_meta = { |
| pool_page_alloc_meta, pool_page_free_meta, |
.pa_alloc = pool_page_alloc_meta, |
| .pa_backingmapptr = &kmem_map, |
.pa_free = pool_page_free_meta, |
| |
.pa_pagesz = 0 |
| }; |
}; |
| |
|
| /* # of seconds to retain page after last use */ |
/* # of seconds to retain page after last use */ |
| Line 217 static void pool_print1(struct pool *, c |
|
| Line 210 static void pool_print1(struct pool *, c |
|
| static int pool_chk_page(struct pool *, const char *, |
static int pool_chk_page(struct pool *, const char *, |
| struct pool_item_header *); |
struct pool_item_header *); |
| |
|
| /* |
|
| * Pool log entry. An array of these is allocated in pool_init(). |
|
| */ |
|
| struct pool_log { |
|
| const char *pl_file; |
|
| long pl_line; |
|
| int pl_action; |
|
| #define PRLOG_GET 1 |
|
| #define PRLOG_PUT 2 |
|
| void *pl_addr; |
|
| }; |
|
| |
|
| #ifdef POOL_DIAGNOSTIC |
|
| /* Number of entries in pool log buffers */ |
|
| #ifndef POOL_LOGSIZE |
|
| #define POOL_LOGSIZE 10 |
|
| #endif |
|
| |
|
| int pool_logsize = POOL_LOGSIZE; |
|
| |
|
| static inline void |
|
| pr_log(struct pool *pp, void *v, int action, const char *file, long line) |
|
| { |
|
| int n; |
|
| struct pool_log *pl; |
|
| |
|
| if ((pp->pr_roflags & PR_LOGGING) == 0) |
|
| return; |
|
| |
|
| if (pp->pr_log == NULL) { |
|
| if (kmem_map != NULL) |
|
| pp->pr_log = malloc( |
|
| pool_logsize * sizeof(struct pool_log), |
|
| M_TEMP, M_NOWAIT | M_ZERO); |
|
| if (pp->pr_log == NULL) |
|
| return; |
|
| pp->pr_curlogentry = 0; |
|
| pp->pr_logsize = pool_logsize; |
|
| } |
|
| |
|
| /* |
|
| * Fill in the current entry. Wrap around and overwrite |
|
| * the oldest entry if necessary. |
|
| */ |
|
| n = pp->pr_curlogentry; |
|
| pl = &pp->pr_log[n]; |
|
| pl->pl_file = file; |
|
| pl->pl_line = line; |
|
| pl->pl_action = action; |
|
| pl->pl_addr = v; |
|
| if (++n >= pp->pr_logsize) |
|
| n = 0; |
|
| pp->pr_curlogentry = n; |
|
| } |
|
| |
|
| static void |
|
| pr_printlog(struct pool *pp, struct pool_item *pi, |
|
| void (*pr)(const char *, ...)) |
|
| { |
|
| int i = pp->pr_logsize; |
|
| int n = pp->pr_curlogentry; |
|
| |
|
| if (pp->pr_log == NULL) |
|
| return; |
|
| |
|
| /* |
|
| * Print all entries in this pool's log. |
|
| */ |
|
| while (i-- > 0) { |
|
| struct pool_log *pl = &pp->pr_log[n]; |
|
| if (pl->pl_action != 0) { |
|
| if (pi == NULL || pi == pl->pl_addr) { |
|
| (*pr)("\tlog entry %d:\n", i); |
|
| (*pr)("\t\taction = %s, addr = %p\n", |
|
| pl->pl_action == PRLOG_GET ? "get" : "put", |
|
| pl->pl_addr); |
|
| (*pr)("\t\tfile: %s at line %lu\n", |
|
| pl->pl_file, pl->pl_line); |
|
| } |
|
| } |
|
| if (++n >= pp->pr_logsize) |
|
| n = 0; |
|
| } |
|
| } |
|
| |
|
| static inline void |
|
| pr_enter(struct pool *pp, const char *file, long line) |
|
| { |
|
| |
|
| if (__predict_false(pp->pr_entered_file != NULL)) { |
|
| printf("pool %s: reentrancy at file %s line %ld\n", |
|
| pp->pr_wchan, file, line); |
|
| printf(" previous entry at file %s line %ld\n", |
|
| pp->pr_entered_file, pp->pr_entered_line); |
|
| panic("pr_enter"); |
|
| } |
|
| |
|
| pp->pr_entered_file = file; |
|
| pp->pr_entered_line = line; |
|
| } |
|
| |
|
| static inline void |
|
| pr_leave(struct pool *pp) |
|
| { |
|
| |
|
| if (__predict_false(pp->pr_entered_file == NULL)) { |
|
| printf("pool %s not entered?\n", pp->pr_wchan); |
|
| panic("pr_leave"); |
|
| } |
|
| |
|
| pp->pr_entered_file = NULL; |
|
| pp->pr_entered_line = 0; |
|
| } |
|
| |
|
| static inline void |
|
| pr_enter_check(struct pool *pp, void (*pr)(const char *, ...)) |
|
| { |
|
| |
|
| if (pp->pr_entered_file != NULL) |
|
| (*pr)("\n\tcurrently entered from file %s line %ld\n", |
|
| pp->pr_entered_file, pp->pr_entered_line); |
|
| } |
|
| #else |
|
| #define pr_log(pp, v, action, file, line) |
|
| #define pr_printlog(pp, pi, pr) |
|
| #define pr_enter(pp, file, line) |
|
| #define pr_leave(pp) |
|
| #define pr_enter_check(pp, pr) |
|
| #endif /* POOL_DIAGNOSTIC */ |
|
| |
|
| static inline unsigned int |
static inline unsigned int |
| pr_item_notouch_index(const struct pool *pp, const struct pool_item_header *ph, |
pr_item_notouch_index(const struct pool *pp, const struct pool_item_header *ph, |
| const void *v) |
const void *v) |
| Line 529 pr_rmpage(struct pool *pp, struct pool_i |
|
| Line 392 pr_rmpage(struct pool *pp, struct pool_i |
|
| pool_update_curpage(pp); |
pool_update_curpage(pp); |
| } |
} |
| |
|
| static bool |
|
| pa_starved_p(struct pool_allocator *pa) |
|
| { |
|
| |
|
| if (pa->pa_backingmap != NULL) { |
|
| return vm_map_starved_p(pa->pa_backingmap); |
|
| } |
|
| return false; |
|
| } |
|
| |
|
| static int |
|
| pool_reclaim_callback(struct callback_entry *ce, void *obj, void *arg) |
|
| { |
|
| struct pool *pp = obj; |
|
| struct pool_allocator *pa = pp->pr_alloc; |
|
| |
|
| KASSERT(&pp->pr_reclaimerentry == ce); |
|
| pool_reclaim(pp); |
|
| if (!pa_starved_p(pa)) { |
|
| return CALLBACK_CHAIN_ABORT; |
|
| } |
|
| return CALLBACK_CHAIN_CONTINUE; |
|
| } |
|
| |
|
| static void |
|
| pool_reclaim_register(struct pool *pp) |
|
| { |
|
| struct vm_map *map = pp->pr_alloc->pa_backingmap; |
|
| int s; |
|
| |
|
| if (map == NULL) { |
|
| return; |
|
| } |
|
| |
|
| s = splvm(); /* not necessary for INTRSAFE maps, but don't care. */ |
|
| callback_register(&vm_map_to_kernel(map)->vmk_reclaim_callback, |
|
| &pp->pr_reclaimerentry, pp, pool_reclaim_callback); |
|
| splx(s); |
|
| |
|
| #ifdef DIAGNOSTIC |
|
| /* Diagnostic drain attempt. */ |
|
| uvm_km_va_drain(map, 0); |
|
| #endif |
|
| } |
|
| |
|
| static void |
|
| pool_reclaim_unregister(struct pool *pp) |
|
| { |
|
| struct vm_map *map = pp->pr_alloc->pa_backingmap; |
|
| int s; |
|
| |
|
| if (map == NULL) { |
|
| return; |
|
| } |
|
| |
|
| s = splvm(); /* not necessary for INTRSAFE maps, but don't care. */ |
|
| callback_unregister(&vm_map_to_kernel(map)->vmk_reclaim_callback, |
|
| &pp->pr_reclaimerentry); |
|
| splx(s); |
|
| } |
|
| |
|
| static void |
|
| pa_reclaim_register(struct pool_allocator *pa) |
|
| { |
|
| struct vm_map *map = *pa->pa_backingmapptr; |
|
| struct pool *pp; |
|
| |
|
| KASSERT(pa->pa_backingmap == NULL); |
|
| if (map == NULL) { |
|
| SLIST_INSERT_HEAD(&pa_deferinitq, pa, pa_q); |
|
| return; |
|
| } |
|
| pa->pa_backingmap = map; |
|
| TAILQ_FOREACH(pp, &pa->pa_list, pr_alloc_list) { |
|
| pool_reclaim_register(pp); |
|
| } |
|
| } |
|
| |
|
| /* |
/* |
| * Initialize all the pools listed in the "pools" link set. |
* Initialize all the pools listed in the "pools" link set. |
| */ |
*/ |
| void |
void |
| pool_subsystem_init(void) |
pool_subsystem_init(void) |
| { |
{ |
| struct pool_allocator *pa; |
size_t size; |
| |
int idx; |
| |
|
| mutex_init(&pool_head_lock, MUTEX_DEFAULT, IPL_NONE); |
mutex_init(&pool_head_lock, MUTEX_DEFAULT, IPL_NONE); |
| mutex_init(&pool_allocator_lock, MUTEX_DEFAULT, IPL_NONE); |
mutex_init(&pool_allocator_lock, MUTEX_DEFAULT, IPL_NONE); |
| cv_init(&pool_busy, "poolbusy"); |
cv_init(&pool_busy, "poolbusy"); |
| |
|
| while ((pa = SLIST_FIRST(&pa_deferinitq)) != NULL) { |
/* |
| KASSERT(pa->pa_backingmapptr != NULL); |
* Initialize private page header pool and cache magazine pool if we |
| KASSERT(*pa->pa_backingmapptr != NULL); |
* haven't done so yet. |
| SLIST_REMOVE_HEAD(&pa_deferinitq, pa_q); |
*/ |
| pa_reclaim_register(pa); |
for (idx = 0; idx < PHPOOL_MAX; idx++) { |
| |
static char phpool_names[PHPOOL_MAX][6+1+6+1]; |
| |
int nelem; |
| |
size_t sz; |
| |
|
| |
nelem = PHPOOL_FREELIST_NELEM(idx); |
| |
snprintf(phpool_names[idx], sizeof(phpool_names[idx]), |
| |
"phpool-%d", nelem); |
| |
sz = sizeof(struct pool_item_header); |
| |
if (nelem) { |
| |
sz = offsetof(struct pool_item_header, |
| |
ph_bitmap[howmany(nelem, BITMAP_SIZE)]); |
| |
} |
| |
pool_init(&phpool[idx], sz, 0, 0, 0, |
| |
phpool_names[idx], &pool_allocator_meta, IPL_VM); |
| } |
} |
| |
#ifdef POOL_SUBPAGE |
| |
pool_init(&psppool, POOL_SUBPAGE, POOL_SUBPAGE, 0, |
| |
PR_RECURSIVE, "psppool", &pool_allocator_meta, IPL_VM); |
| |
#endif |
| |
|
| |
size = sizeof(pcg_t) + |
| |
(PCG_NOBJECTS_NORMAL - 1) * sizeof(pcgpair_t); |
| |
pool_init(&pcg_normal_pool, size, coherency_unit, 0, 0, |
| |
"pcgnormal", &pool_allocator_meta, IPL_VM); |
| |
|
| |
size = sizeof(pcg_t) + |
| |
(PCG_NOBJECTS_LARGE - 1) * sizeof(pcgpair_t); |
| |
pool_init(&pcg_large_pool, size, coherency_unit, 0, 0, |
| |
"pcglarge", &pool_allocator_meta, IPL_VM); |
| |
|
| pool_init(&cache_pool, sizeof(struct pool_cache), coherency_unit, |
pool_init(&cache_pool, sizeof(struct pool_cache), coherency_unit, |
| 0, 0, "pcache", &pool_allocator_nointr, IPL_NONE); |
0, 0, "pcache", &pool_allocator_meta, IPL_NONE); |
| |
|
| pool_init(&cache_cpu_pool, sizeof(pool_cache_cpu_t), coherency_unit, |
pool_init(&cache_cpu_pool, sizeof(pool_cache_cpu_t), coherency_unit, |
| 0, 0, "pcachecpu", &pool_allocator_nointr, IPL_NONE); |
0, 0, "pcachecpu", &pool_allocator_meta, IPL_NONE); |
| } |
} |
| |
|
| /* |
/* |
| * Initialize the given pool resource structure. |
* Initialize the given pool resource structure. |
| * |
* |
| * We export this routine to allow other kernel parts to declare |
* We export this routine to allow other kernel parts to declare |
| * static pools that must be initialized before malloc() is available. |
* static pools that must be initialized before kmem(9) is available. |
| */ |
*/ |
| void |
void |
| pool_init(struct pool *pp, size_t size, u_int align, u_int ioff, int flags, |
pool_init(struct pool *pp, size_t size, u_int align, u_int ioff, int flags, |
| Line 659 pool_init(struct pool *pp, size_t size, |
|
| Line 473 pool_init(struct pool *pp, size_t size, |
|
| } |
} |
| #endif |
#endif |
| |
|
| #ifdef POOL_DIAGNOSTIC |
|
| /* |
|
| * Always log if POOL_DIAGNOSTIC is defined. |
|
| */ |
|
| if (pool_logsize != 0) |
|
| flags |= PR_LOGGING; |
|
| #endif |
|
| |
|
| if (palloc == NULL) |
if (palloc == NULL) |
| palloc = &pool_allocator_kmem; |
palloc = &pool_allocator_kmem; |
| #ifdef POOL_SUBPAGE |
#ifdef POOL_SUBPAGE |
| Line 688 pool_init(struct pool *pp, size_t size, |
|
| Line 494 pool_init(struct pool *pp, size_t size, |
|
| mutex_init(&palloc->pa_lock, MUTEX_DEFAULT, IPL_VM); |
mutex_init(&palloc->pa_lock, MUTEX_DEFAULT, 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; |
| |
|
| if (palloc->pa_backingmapptr != NULL) { |
|
| pa_reclaim_register(palloc); |
|
| } |
|
| } |
} |
| if (!cold) |
if (!cold) |
| mutex_exit(&pool_allocator_lock); |
mutex_exit(&pool_allocator_lock); |
| Line 817 pool_init(struct pool *pp, size_t size, |
|
| Line 619 pool_init(struct pool *pp, size_t size, |
|
| pp->pr_nidle = 0; |
pp->pr_nidle = 0; |
| pp->pr_refcnt = 0; |
pp->pr_refcnt = 0; |
| |
|
| pp->pr_log = NULL; |
|
| |
|
| pp->pr_entered_file = NULL; |
|
| pp->pr_entered_line = 0; |
|
| |
|
| mutex_init(&pp->pr_lock, MUTEX_DEFAULT, ipl); |
mutex_init(&pp->pr_lock, MUTEX_DEFAULT, ipl); |
| cv_init(&pp->pr_cv, wchan); |
cv_init(&pp->pr_cv, wchan); |
| pp->pr_ipl = ipl; |
pp->pr_ipl = ipl; |
| |
|
| /* |
|
| * Initialize private page header pool and cache magazine pool if we |
|
| * haven't done so yet. |
|
| * XXX LOCKING. |
|
| */ |
|
| if (phpool[0].pr_size == 0) { |
|
| int idx; |
|
| for (idx = 0; idx < PHPOOL_MAX; idx++) { |
|
| static char phpool_names[PHPOOL_MAX][6+1+6+1]; |
|
| int nelem; |
|
| size_t sz; |
|
| |
|
| nelem = PHPOOL_FREELIST_NELEM(idx); |
|
| snprintf(phpool_names[idx], sizeof(phpool_names[idx]), |
|
| "phpool-%d", nelem); |
|
| sz = sizeof(struct pool_item_header); |
|
| if (nelem) { |
|
| sz = offsetof(struct pool_item_header, |
|
| ph_bitmap[howmany(nelem, BITMAP_SIZE)]); |
|
| } |
|
| pool_init(&phpool[idx], sz, 0, 0, 0, |
|
| phpool_names[idx], &pool_allocator_meta, IPL_VM); |
|
| } |
|
| #ifdef POOL_SUBPAGE |
|
| pool_init(&psppool, POOL_SUBPAGE, POOL_SUBPAGE, 0, |
|
| PR_RECURSIVE, "psppool", &pool_allocator_meta, IPL_VM); |
|
| #endif |
|
| |
|
| size = sizeof(pcg_t) + |
|
| (PCG_NOBJECTS_NORMAL - 1) * sizeof(pcgpair_t); |
|
| pool_init(&pcg_normal_pool, size, coherency_unit, 0, 0, |
|
| "pcgnormal", &pool_allocator_meta, IPL_VM); |
|
| |
|
| size = sizeof(pcg_t) + |
|
| (PCG_NOBJECTS_LARGE - 1) * sizeof(pcgpair_t); |
|
| pool_init(&pcg_large_pool, size, coherency_unit, 0, 0, |
|
| "pcglarge", &pool_allocator_meta, IPL_VM); |
|
| } |
|
| |
|
| /* Insert into the list of all pools. */ |
/* Insert into the list of all pools. */ |
| if (!cold) |
if (!cold) |
| mutex_enter(&pool_head_lock); |
mutex_enter(&pool_head_lock); |
| Line 885 pool_init(struct pool *pp, size_t size, |
|
| Line 643 pool_init(struct pool *pp, size_t size, |
|
| TAILQ_INSERT_TAIL(&palloc->pa_list, pp, pr_alloc_list); |
TAILQ_INSERT_TAIL(&palloc->pa_list, pp, pr_alloc_list); |
| if (!cold) |
if (!cold) |
| mutex_exit(&palloc->pa_lock); |
mutex_exit(&palloc->pa_lock); |
| |
|
| pool_reclaim_register(pp); |
|
| } |
} |
| |
|
| /* |
/* |
| Line 908 pool_destroy(struct pool *pp) |
|
| Line 664 pool_destroy(struct pool *pp) |
|
| mutex_exit(&pool_head_lock); |
mutex_exit(&pool_head_lock); |
| |
|
| /* Remove this pool from its allocator's list of pools. */ |
/* Remove this pool from its allocator's list of pools. */ |
| pool_reclaim_unregister(pp); |
|
| mutex_enter(&pp->pr_alloc->pa_lock); |
mutex_enter(&pp->pr_alloc->pa_lock); |
| TAILQ_REMOVE(&pp->pr_alloc->pa_list, pp, pr_alloc_list); |
TAILQ_REMOVE(&pp->pr_alloc->pa_list, pp, pr_alloc_list); |
| mutex_exit(&pp->pr_alloc->pa_lock); |
mutex_exit(&pp->pr_alloc->pa_lock); |
| Line 924 pool_destroy(struct pool *pp) |
|
| Line 679 pool_destroy(struct pool *pp) |
|
| |
|
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| if (pp->pr_nout != 0) { |
if (pp->pr_nout != 0) { |
| pr_printlog(pp, NULL, printf); |
|
| panic("pool_destroy: pool busy: still out: %u", |
panic("pool_destroy: pool busy: still out: %u", |
| pp->pr_nout); |
pp->pr_nout); |
| } |
} |
| Line 941 pool_destroy(struct pool *pp) |
|
| Line 695 pool_destroy(struct pool *pp) |
|
| mutex_exit(&pp->pr_lock); |
mutex_exit(&pp->pr_lock); |
| |
|
| pr_pagelist_free(pp, &pq); |
pr_pagelist_free(pp, &pq); |
| |
|
| #ifdef POOL_DIAGNOSTIC |
|
| if (pp->pr_log != NULL) { |
|
| free(pp->pr_log, M_TEMP); |
|
| pp->pr_log = NULL; |
|
| } |
|
| #endif |
|
| |
|
| cv_destroy(&pp->pr_cv); |
cv_destroy(&pp->pr_cv); |
| mutex_destroy(&pp->pr_lock); |
mutex_destroy(&pp->pr_lock); |
| } |
} |
| Line 983 pool_alloc_item_header(struct pool *pp, |
|
| Line 729 pool_alloc_item_header(struct pool *pp, |
|
| * Grab an item from the pool. |
* Grab an item from the pool. |
| */ |
*/ |
| void * |
void * |
| #ifdef POOL_DIAGNOSTIC |
|
| _pool_get(struct pool *pp, int flags, const char *file, long line) |
|
| #else |
|
| pool_get(struct pool *pp, int flags) |
pool_get(struct pool *pp, int flags) |
| #endif |
|
| { |
{ |
| struct pool_item *pi; |
struct pool_item *pi; |
| struct pool_item_header *ph; |
struct pool_item_header *ph; |
| Line 1007 pool_get(struct pool *pp, int flags) |
|
| Line 749 pool_get(struct pool *pp, int flags) |
|
| } |
} |
| |
|
| mutex_enter(&pp->pr_lock); |
mutex_enter(&pp->pr_lock); |
| pr_enter(pp, file, line); |
|
| |
|
| startover: |
startover: |
| /* |
/* |
| * Check to see if we've reached the hard limit. If we have, |
* Check to see if we've reached the hard limit. If we have, |
| Line 1017 pool_get(struct pool *pp, int flags) |
|
| Line 757 pool_get(struct pool *pp, int flags) |
|
| */ |
*/ |
| #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); |
|
| mutex_exit(&pp->pr_lock); |
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); |
| } |
} |
| Line 1029 pool_get(struct pool *pp, int flags) |
|
| Line 768 pool_get(struct pool *pp, int flags) |
|
| * back to the pool, unlock, call the hook, re-lock, |
* back to the pool, unlock, call the hook, re-lock, |
| * and check the hardlimit condition again. |
* and check the hardlimit condition again. |
| */ |
*/ |
| pr_leave(pp); |
|
| mutex_exit(&pp->pr_lock); |
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); |
| mutex_enter(&pp->pr_lock); |
mutex_enter(&pp->pr_lock); |
| pr_enter(pp, file, line); |
|
| if (pp->pr_nout < pp->pr_hardlimit) |
if (pp->pr_nout < pp->pr_hardlimit) |
| goto startover; |
goto startover; |
| } |
} |
| Line 1044 pool_get(struct pool *pp, int flags) |
|
| Line 781 pool_get(struct pool *pp, int flags) |
|
| * it be? |
* it be? |
| */ |
*/ |
| pp->pr_flags |= PR_WANTED; |
pp->pr_flags |= PR_WANTED; |
| pr_leave(pp); |
|
| cv_wait(&pp->pr_cv, &pp->pr_lock); |
cv_wait(&pp->pr_cv, &pp->pr_lock); |
| pr_enter(pp, file, line); |
|
| goto startover; |
goto startover; |
| } |
} |
| |
|
| Line 1060 pool_get(struct pool *pp, int flags) |
|
| Line 795 pool_get(struct pool *pp, int flags) |
|
| |
|
| pp->pr_nfail++; |
pp->pr_nfail++; |
| |
|
| pr_leave(pp); |
|
| mutex_exit(&pp->pr_lock); |
mutex_exit(&pp->pr_lock); |
| return (NULL); |
return (NULL); |
| } |
} |
| Line 1088 pool_get(struct pool *pp, int flags) |
|
| Line 822 pool_get(struct pool *pp, int flags) |
|
| * Release the pool lock, as the back-end page allocator |
* Release the pool lock, as the back-end page allocator |
| * may block. |
* may block. |
| */ |
*/ |
| pr_leave(pp); |
|
| error = pool_grow(pp, flags); |
error = pool_grow(pp, flags); |
| pr_enter(pp, file, line); |
|
| if (error != 0) { |
if (error != 0) { |
| /* |
/* |
| * We were unable to allocate a page or item |
* We were unable to allocate a page or item |
| Line 1102 pool_get(struct pool *pp, int flags) |
|
| Line 834 pool_get(struct pool *pp, int flags) |
|
| goto startover; |
goto startover; |
| |
|
| pp->pr_nfail++; |
pp->pr_nfail++; |
| pr_leave(pp); |
|
| mutex_exit(&pp->pr_lock); |
mutex_exit(&pp->pr_lock); |
| return (NULL); |
return (NULL); |
| } |
} |
| Line 1113 pool_get(struct pool *pp, int flags) |
|
| Line 844 pool_get(struct pool *pp, int flags) |
|
| if (pp->pr_roflags & PR_NOTOUCH) { |
if (pp->pr_roflags & PR_NOTOUCH) { |
| #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); |
|
| mutex_exit(&pp->pr_lock); |
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 |
| v = pr_item_notouch_get(pp, ph); |
v = pr_item_notouch_get(pp, ph); |
| #ifdef POOL_DIAGNOSTIC |
|
| pr_log(pp, v, PRLOG_GET, file, line); |
|
| #endif |
|
| } else { |
} else { |
| 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); |
|
| mutex_exit(&pp->pr_lock); |
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); |
|
| mutex_exit(&pp->pr_lock); |
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); |
| Line 1139 pool_get(struct pool *pp, int flags) |
|
| Line 864 pool_get(struct pool *pp, int flags) |
|
| } |
} |
| #endif |
#endif |
| |
|
| #ifdef POOL_DIAGNOSTIC |
|
| pr_log(pp, v, PRLOG_GET, file, line); |
|
| #endif |
|
| |
|
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| if (__predict_false(pi->pi_magic != PI_MAGIC)) { |
if (__predict_false(pi->pi_magic != PI_MAGIC)) { |
| pr_printlog(pp, pi, printf); |
|
| panic("pool_get(%s): free list modified: " |
panic("pool_get(%s): free list modified: " |
| "magic=%x; page %p; item addr %p\n", |
"magic=%x; page %p; item addr %p\n", |
| pp->pr_wchan, pi->pi_magic, ph->ph_page, pi); |
pp->pr_wchan, pi->pi_magic, ph->ph_page, pi); |
| Line 1178 pool_get(struct pool *pp, int flags) |
|
| Line 898 pool_get(struct pool *pp, int flags) |
|
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| 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); |
|
| mutex_exit(&pp->pr_lock); |
mutex_exit(&pp->pr_lock); |
| panic("pool_get: %s: nmissing inconsistent", |
panic("pool_get: %s: nmissing inconsistent", |
| pp->pr_wchan); |
pp->pr_wchan); |
| Line 1194 pool_get(struct pool *pp, int flags) |
|
| Line 913 pool_get(struct pool *pp, int flags) |
|
| } |
} |
| |
|
| pp->pr_nget++; |
pp->pr_nget++; |
| pr_leave(pp); |
|
| |
|
| /* |
/* |
| * If we have a low water mark and we are now below that low |
* If we have a low water mark and we are now below that low |
| Line 1236 pool_do_put(struct pool *pp, void *v, st |
|
| Line 954 pool_do_put(struct pool *pp, void *v, st |
|
| #endif |
#endif |
| |
|
| if (__predict_false((ph = pr_find_pagehead(pp, v)) == NULL)) { |
if (__predict_false((ph = pr_find_pagehead(pp, v)) == NULL)) { |
| pr_printlog(pp, NULL, printf); |
|
| panic("pool_put: %s: page header missing", pp->pr_wchan); |
panic("pool_put: %s: page header missing", pp->pr_wchan); |
| } |
} |
| |
|
| Line 1325 pool_do_put(struct pool *pp, void *v, st |
|
| Line 1042 pool_do_put(struct pool *pp, void *v, st |
|
| } |
} |
| } |
} |
| |
|
| /* |
|
| * Return resource to the pool. |
|
| */ |
|
| #ifdef POOL_DIAGNOSTIC |
|
| void |
|
| _pool_put(struct pool *pp, void *v, const char *file, long line) |
|
| { |
|
| struct pool_pagelist pq; |
|
| |
|
| LIST_INIT(&pq); |
|
| |
|
| mutex_enter(&pp->pr_lock); |
|
| pr_enter(pp, file, line); |
|
| |
|
| pr_log(pp, v, PRLOG_PUT, file, line); |
|
| |
|
| pool_do_put(pp, v, &pq); |
|
| |
|
| pr_leave(pp); |
|
| mutex_exit(&pp->pr_lock); |
|
| |
|
| pr_pagelist_free(pp, &pq); |
|
| } |
|
| #undef pool_put |
|
| #endif /* POOL_DIAGNOSTIC */ |
|
| |
|
| void |
void |
| pool_put(struct pool *pp, void *v) |
pool_put(struct pool *pp, void *v) |
| { |
{ |
| Line 1365 pool_put(struct pool *pp, void *v) |
|
| Line 1056 pool_put(struct pool *pp, void *v) |
|
| pr_pagelist_free(pp, &pq); |
pr_pagelist_free(pp, &pq); |
| } |
} |
| |
|
| #ifdef POOL_DIAGNOSTIC |
|
| #define pool_put(h, v) _pool_put((h), (v), __FILE__, __LINE__) |
|
| #endif |
|
| |
|
| /* |
/* |
| * pool_grow: grow a pool by a page. |
* pool_grow: grow a pool by a page. |
| * |
* |
| Line 1616 pool_sethardlimit(struct pool *pp, int n |
|
| Line 1303 pool_sethardlimit(struct pool *pp, int n |
|
| * Might be called from interrupt context. |
* Might be called from interrupt context. |
| */ |
*/ |
| int |
int |
| #ifdef POOL_DIAGNOSTIC |
|
| _pool_reclaim(struct pool *pp, const char *file, long line) |
|
| #else |
|
| pool_reclaim(struct pool *pp) |
pool_reclaim(struct pool *pp) |
| #endif |
|
| { |
{ |
| struct pool_item_header *ph, *phnext; |
struct pool_item_header *ph, *phnext; |
| struct pool_pagelist pq; |
struct pool_pagelist pq; |
| Line 1660 pool_reclaim(struct pool *pp) |
|
| Line 1343 pool_reclaim(struct pool *pp) |
|
| } |
} |
| return (0); |
return (0); |
| } |
} |
| pr_enter(pp, file, line); |
|
| |
|
| LIST_INIT(&pq); |
LIST_INIT(&pq); |
| |
|
| Line 1674 pool_reclaim(struct pool *pp) |
|
| Line 1356 pool_reclaim(struct pool *pp) |
|
| break; |
break; |
| |
|
| KASSERT(ph->ph_nmissing == 0); |
KASSERT(ph->ph_nmissing == 0); |
| if (curtime - ph->ph_time < pool_inactive_time |
if (curtime - ph->ph_time < pool_inactive_time) |
| && !pa_starved_p(pp->pr_alloc)) |
|
| continue; |
continue; |
| |
|
| /* |
/* |
| Line 1689 pool_reclaim(struct pool *pp) |
|
| Line 1370 pool_reclaim(struct pool *pp) |
|
| pr_rmpage(pp, ph, &pq); |
pr_rmpage(pp, ph, &pq); |
| } |
} |
| |
|
| pr_leave(pp); |
|
| mutex_exit(&pp->pr_lock); |
mutex_exit(&pp->pr_lock); |
| |
|
| if (LIST_EMPTY(&pq)) |
if (LIST_EMPTY(&pq)) |
| Line 1779 pool_drain_end(struct pool *pp, uint64_t |
|
| Line 1459 pool_drain_end(struct pool *pp, uint64_t |
|
| /* |
/* |
| * Diagnostic helpers. |
* Diagnostic helpers. |
| */ |
*/ |
| void |
|
| pool_print(struct pool *pp, const char *modif) |
|
| { |
|
| |
|
| pool_print1(pp, modif, printf); |
|
| } |
|
| |
|
| void |
void |
| pool_printall(const char *modif, void (*pr)(const char *, ...)) |
pool_printall(const char *modif, void (*pr)(const char *, ...)) |
| Line 1896 pool_print1(struct pool *pp, const char |
|
| Line 1570 pool_print1(struct pool *pp, const char |
|
| goto skip_log; |
goto skip_log; |
| |
|
| (*pr)("\n"); |
(*pr)("\n"); |
| if ((pp->pr_roflags & PR_LOGGING) == 0) |
|
| (*pr)("\tno log\n"); |
|
| else { |
|
| pr_printlog(pp, NULL, pr); |
|
| } |
|
| |
|
| skip_log: |
skip_log: |
| |
|
| Line 1950 pool_print1(struct pool *pp, const char |
|
| Line 1619 pool_print1(struct pool *pp, const char |
|
| } |
} |
| } |
} |
| #undef PR_GROUPLIST |
#undef PR_GROUPLIST |
| |
|
| pr_enter_check(pp, pr); |
|
| } |
} |
| |
|
| static int |
static int |
| Line 2157 pool_cache_bootstrap(pool_cache_t pc, si |
|
| Line 1824 pool_cache_bootstrap(pool_cache_t pc, si |
|
| void |
void |
| pool_cache_destroy(pool_cache_t pc) |
pool_cache_destroy(pool_cache_t pc) |
| { |
{ |
| |
|
| |
pool_cache_bootstrap_destroy(pc); |
| |
pool_put(&cache_pool, pc); |
| |
} |
| |
|
| |
/* |
| |
* pool_cache_bootstrap_destroy: |
| |
* |
| |
* Destroy a pool cache. |
| |
*/ |
| |
void |
| |
pool_cache_bootstrap_destroy(pool_cache_t pc) |
| |
{ |
| struct pool *pp = &pc->pc_pool; |
struct pool *pp = &pc->pc_pool; |
| u_int i; |
u_int i; |
| |
|
| Line 2182 pool_cache_destroy(pool_cache_t pc) |
|
| Line 1862 pool_cache_destroy(pool_cache_t pc) |
|
| /* Finally, destroy it. */ |
/* Finally, destroy it. */ |
| mutex_destroy(&pc->pc_lock); |
mutex_destroy(&pc->pc_lock); |
| pool_destroy(pp); |
pool_destroy(pp); |
| pool_put(&cache_pool, pc); |
|
| } |
} |
| |
|
| /* |
/* |
| Line 2384 pool_cache_invalidate(pool_cache_t pc) |
|
| Line 2063 pool_cache_invalidate(pool_cache_t pc) |
|
| static void |
static void |
| pool_cache_invalidate_cpu(pool_cache_t pc, u_int index) |
pool_cache_invalidate_cpu(pool_cache_t pc, u_int index) |
| { |
{ |
| |
|
| pool_cache_cpu_t *cc; |
pool_cache_cpu_t *cc; |
| pcg_t *pcg; |
pcg_t *pcg; |
| |
|
| Line 2806 void pool_page_free(struct pool *, void |
|
| Line 2484 void pool_page_free(struct pool *, void |
|
| |
|
| #ifdef POOL_SUBPAGE |
#ifdef POOL_SUBPAGE |
| struct pool_allocator pool_allocator_kmem_fullpage = { |
struct pool_allocator pool_allocator_kmem_fullpage = { |
| pool_page_alloc, pool_page_free, 0, |
.pa_alloc = pool_page_alloc, |
| .pa_backingmapptr = &kmem_map, |
.pa_free = pool_page_free, |
| |
.pa_pagesz = 0 |
| }; |
}; |
| #else |
#else |
| struct pool_allocator pool_allocator_kmem = { |
struct pool_allocator pool_allocator_kmem = { |
| pool_page_alloc, pool_page_free, 0, |
.pa_alloc = pool_page_alloc, |
| .pa_backingmapptr = &kmem_map, |
.pa_free = pool_page_free, |
| |
.pa_pagesz = 0 |
| }; |
}; |
| #endif |
#endif |
| |
|
| void *pool_page_alloc_nointr(struct pool *, int); |
|
| void pool_page_free_nointr(struct pool *, void *); |
|
| |
|
| #ifdef POOL_SUBPAGE |
#ifdef POOL_SUBPAGE |
| struct pool_allocator pool_allocator_nointr_fullpage = { |
struct pool_allocator pool_allocator_nointr_fullpage = { |
| pool_page_alloc_nointr, pool_page_free_nointr, 0, |
.pa_alloc = pool_page_alloc, |
| .pa_backingmapptr = &kernel_map, |
.pa_free = pool_page_free, |
| |
.pa_pagesz = 0 |
| }; |
}; |
| #else |
#else |
| struct pool_allocator pool_allocator_nointr = { |
struct pool_allocator pool_allocator_nointr = { |
| pool_page_alloc_nointr, pool_page_free_nointr, 0, |
.pa_alloc = pool_page_alloc, |
| .pa_backingmapptr = &kernel_map, |
.pa_free = pool_page_free, |
| |
.pa_pagesz = 0 |
| }; |
}; |
| #endif |
#endif |
| |
|
| Line 2836 void *pool_subpage_alloc(struct pool *, |
|
| Line 2515 void *pool_subpage_alloc(struct pool *, |
|
| void pool_subpage_free(struct pool *, void *); |
void pool_subpage_free(struct pool *, void *); |
| |
|
| struct pool_allocator pool_allocator_kmem = { |
struct pool_allocator pool_allocator_kmem = { |
| pool_subpage_alloc, pool_subpage_free, POOL_SUBPAGE, |
.pa_alloc = pool_subpage_alloc, |
| .pa_backingmapptr = &kmem_map, |
.pa_free = pool_subpage_free, |
| |
.pa_pagesz = POOL_SUBPAGE |
| }; |
}; |
| |
|
| void *pool_subpage_alloc_nointr(struct pool *, int); |
|
| void pool_subpage_free_nointr(struct pool *, void *); |
|
| |
|
| struct pool_allocator pool_allocator_nointr = { |
struct pool_allocator pool_allocator_nointr = { |
| pool_subpage_alloc, pool_subpage_free, POOL_SUBPAGE, |
.pa_alloc = pool_subpage_alloc, |
| .pa_backingmapptr = &kmem_map, |
.pa_free = pool_subpage_free, |
| |
.pa_pagesz = POOL_SUBPAGE |
| }; |
}; |
| #endif /* POOL_SUBPAGE */ |
#endif /* POOL_SUBPAGE */ |
| |
|
| Line 2881 pool_allocator_free(struct pool *pp, voi |
|
| Line 2559 pool_allocator_free(struct pool *pp, voi |
|
| void * |
void * |
| pool_page_alloc(struct pool *pp, int flags) |
pool_page_alloc(struct pool *pp, int flags) |
| { |
{ |
| bool waitok = (flags & PR_WAITOK) ? true : false; |
const vm_flag_t vflags = (flags & PR_WAITOK) ? VM_SLEEP: VM_NOSLEEP; |
| |
vmem_addr_t va; |
| |
int ret; |
| |
|
| |
ret = uvm_km_kmem_alloc(kmem_va_arena, pp->pr_alloc->pa_pagesz, |
| |
vflags | VM_INSTANTFIT, &va); |
| |
|
| return ((void *) uvm_km_alloc_poolpage_cache(kmem_map, waitok)); |
return ret ? NULL : (void *)va; |
| } |
} |
| |
|
| void |
void |
| pool_page_free(struct pool *pp, void *v) |
pool_page_free(struct pool *pp, void *v) |
| { |
{ |
| |
|
| uvm_km_free_poolpage_cache(kmem_map, (vaddr_t) v); |
uvm_km_kmem_free(kmem_va_arena, (vaddr_t)v, pp->pr_alloc->pa_pagesz); |
| } |
} |
| |
|
| static void * |
static void * |
| pool_page_alloc_meta(struct pool *pp, int flags) |
pool_page_alloc_meta(struct pool *pp, int flags) |
| { |
{ |
| bool waitok = (flags & PR_WAITOK) ? true : false; |
const vm_flag_t vflags = (flags & PR_WAITOK) ? VM_SLEEP: VM_NOSLEEP; |
| |
vmem_addr_t va; |
| |
int ret; |
| |
|
| |
ret = vmem_alloc(kmem_meta_arena, pp->pr_alloc->pa_pagesz, |
| |
vflags | VM_INSTANTFIT, &va); |
| |
|
| return ((void *) uvm_km_alloc_poolpage(kmem_map, waitok)); |
return ret ? NULL : (void *)va; |
| } |
} |
| |
|
| static void |
static void |
| pool_page_free_meta(struct pool *pp, void *v) |
pool_page_free_meta(struct pool *pp, void *v) |
| { |
{ |
| |
|
| uvm_km_free_poolpage(kmem_map, (vaddr_t) v); |
vmem_free(kmem_meta_arena, (vmem_addr_t)v, pp->pr_alloc->pa_pagesz); |
| } |
} |
| |
|
| #ifdef POOL_SUBPAGE |
#ifdef POOL_SUBPAGE |
| Line 2922 pool_subpage_free(struct pool *pp, void |
|
| Line 2610 pool_subpage_free(struct pool *pp, void |
|
| pool_put(&psppool, v); |
pool_put(&psppool, v); |
| } |
} |
| |
|
| /* We don't provide a real nointr allocator. Maybe later. */ |
|
| void * |
|
| pool_subpage_alloc_nointr(struct pool *pp, int flags) |
|
| { |
|
| |
|
| return (pool_subpage_alloc(pp, flags)); |
|
| } |
|
| |
|
| void |
|
| pool_subpage_free_nointr(struct pool *pp, void *v) |
|
| { |
|
| |
|
| pool_subpage_free(pp, v); |
|
| } |
|
| #endif /* POOL_SUBPAGE */ |
#endif /* POOL_SUBPAGE */ |
| void * |
|
| pool_page_alloc_nointr(struct pool *pp, int flags) |
|
| { |
|
| bool waitok = (flags & PR_WAITOK) ? true : false; |
|
| |
|
| return ((void *) uvm_km_alloc_poolpage_cache(kernel_map, waitok)); |
|
| } |
|
| |
|
| void |
|
| pool_page_free_nointr(struct pool *pp, void *v) |
|
| { |
|
| |
|
| uvm_km_free_poolpage_cache(kernel_map, (vaddr_t) v); |
|
| } |
|
| |
|
| #if defined(DDB) |
#if defined(DDB) |
| static bool |
static bool |