version 1.19, 1999/03/24 05:51:25 |
version 1.20, 1999/03/31 01:14:06 |
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/* $NetBSD$ */ |
/* $NetBSD$ */ |
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/*- |
/*- |
* Copyright (c) 1997 The NetBSD Foundation, Inc. |
* Copyright (c) 1997, 1999 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 |
* by Paul Kranenburg. |
* by Paul Kranenburg; by Jason R. Thorpe of the Numerical Aerospace |
|
* Simulation Facility, NASA Ames Research Center. |
* |
* |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* modification, are permitted provided that the following conditions |
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|
#include <sys/malloc.h> |
#include <sys/malloc.h> |
#include <sys/lock.h> |
#include <sys/lock.h> |
#include <sys/pool.h> |
#include <sys/pool.h> |
|
#include <sys/syslog.h> |
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#include <vm/vm.h> |
#include <vm/vm.h> |
#include <vm/vm_kern.h> |
#include <vm/vm_kern.h> |
Line 104 struct pool_item { |
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Line 106 struct pool_item { |
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static struct pool_item_header |
static struct pool_item_header |
*pr_find_pagehead __P((struct pool *, caddr_t)); |
*pr_find_pagehead __P((struct pool *, caddr_t)); |
static void pr_rmpage __P((struct pool *, struct pool_item_header *)); |
static void pr_rmpage __P((struct pool *, struct pool_item_header *)); |
|
static int pool_catchup __P((struct pool *)); |
static int pool_prime_page __P((struct pool *, caddr_t)); |
static int pool_prime_page __P((struct pool *, caddr_t)); |
static void *pool_page_alloc __P((unsigned long, int, int)); |
static void *pool_page_alloc __P((unsigned long, int, int)); |
static void pool_page_free __P((void *, unsigned long, int)); |
static void pool_page_free __P((void *, unsigned long, int)); |
Line 143 pr_log(pp, v, action, file, line) |
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Line 146 pr_log(pp, v, action, file, line) |
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int n = pp->pr_curlogentry; |
int n = pp->pr_curlogentry; |
struct pool_log *pl; |
struct pool_log *pl; |
|
|
if ((pp->pr_flags & PR_LOGGING) == 0) |
if ((pp->pr_roflags & PR_LOGGING) == 0) |
return; |
return; |
|
|
/* |
/* |
|
|
int i = pp->pr_logsize; |
int i = pp->pr_logsize; |
int n = pp->pr_curlogentry; |
int n = pp->pr_curlogentry; |
|
|
if ((pp->pr_flags & PR_LOGGING) == 0) |
if ((pp->pr_roflags & PR_LOGGING) == 0) |
return; |
return; |
|
|
pool_print(pp, "printlog"); |
pool_print(pp, "printlog"); |
Line 205 pr_find_pagehead(pp, page) |
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Line 208 pr_find_pagehead(pp, page) |
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{ |
{ |
struct pool_item_header *ph; |
struct pool_item_header *ph; |
|
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if ((pp->pr_flags & PR_PHINPAGE) != 0) |
if ((pp->pr_roflags & PR_PHINPAGE) != 0) |
return ((struct pool_item_header *)(page + pp->pr_phoffset)); |
return ((struct pool_item_header *)(page + pp->pr_phoffset)); |
|
|
for (ph = LIST_FIRST(&pp->pr_hashtab[PR_HASH_INDEX(pp, page)]); |
for (ph = LIST_FIRST(&pp->pr_hashtab[PR_HASH_INDEX(pp, page)]); |
Line 233 pr_rmpage(pp, ph) |
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Line 236 pr_rmpage(pp, ph) |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pp->pr_nidle == 0) |
if (pp->pr_nidle == 0) |
panic("pr_rmpage: nidle inconsistent"); |
panic("pr_rmpage: nidle inconsistent"); |
|
if (pp->pr_nitems < pp->pr_itemsperpage) |
|
panic("pr_rmpage: nitems inconsistent"); |
#endif |
#endif |
pp->pr_nidle--; |
pp->pr_nidle--; |
} |
} |
|
|
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pp->pr_nitems -= pp->pr_itemsperpage; |
|
|
/* |
/* |
* Unlink a page from the pool and release it. |
* Unlink a page from the pool and release it. |
*/ |
*/ |
Line 245 pr_rmpage(pp, ph) |
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Line 252 pr_rmpage(pp, ph) |
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pp->pr_npages--; |
pp->pr_npages--; |
pp->pr_npagefree++; |
pp->pr_npagefree++; |
|
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if ((pp->pr_flags & PR_PHINPAGE) == 0) { |
if ((pp->pr_roflags & PR_PHINPAGE) == 0) { |
LIST_REMOVE(ph, ph_hashlist); |
LIST_REMOVE(ph, ph_hashlist); |
pool_put(&phpool, ph); |
pool_put(&phpool, ph); |
} |
} |
Line 361 pool_init(pp, size, align, ioff, flags, |
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Line 368 pool_init(pp, size, align, ioff, flags, |
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pp->pr_minitems = 0; |
pp->pr_minitems = 0; |
pp->pr_minpages = 0; |
pp->pr_minpages = 0; |
pp->pr_maxpages = UINT_MAX; |
pp->pr_maxpages = UINT_MAX; |
pp->pr_flags = flags; |
pp->pr_roflags = flags; |
|
pp->pr_flags = 0; |
pp->pr_size = ALIGN(size); |
pp->pr_size = ALIGN(size); |
pp->pr_align = align; |
pp->pr_align = align; |
pp->pr_wchan = wchan; |
pp->pr_wchan = wchan; |
Line 371 pool_init(pp, size, align, ioff, flags, |
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Line 379 pool_init(pp, size, align, ioff, flags, |
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pp->pr_pagesz = pagesz; |
pp->pr_pagesz = pagesz; |
pp->pr_pagemask = ~(pagesz - 1); |
pp->pr_pagemask = ~(pagesz - 1); |
pp->pr_pageshift = ffs(pagesz) - 1; |
pp->pr_pageshift = ffs(pagesz) - 1; |
|
pp->pr_nitems = 0; |
|
pp->pr_nout = 0; |
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pp->pr_hardlimit = UINT_MAX; |
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pp->pr_hardlimit_warning = NULL; |
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pp->pr_hardlimit_ratecap = 0; |
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memset(&pp->pr_hardlimit_warning_last, 0, |
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sizeof(pp->pr_hardlimit_warning_last)); |
|
|
/* |
/* |
* Decide whether to put the page header off page to avoid |
* Decide whether to put the page header off page to avoid |
Line 381 pool_init(pp, size, align, ioff, flags, |
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Line 396 pool_init(pp, size, align, ioff, flags, |
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*/ |
*/ |
if (pp->pr_size < pagesz/16) { |
if (pp->pr_size < pagesz/16) { |
/* Use the end of the page for the page header */ |
/* Use the end of the page for the page header */ |
pp->pr_flags |= PR_PHINPAGE; |
pp->pr_roflags |= PR_PHINPAGE; |
pp->pr_phoffset = off = |
pp->pr_phoffset = off = |
pagesz - ALIGN(sizeof(struct pool_item_header)); |
pagesz - ALIGN(sizeof(struct pool_item_header)); |
} else { |
} else { |
Line 424 pool_init(pp, size, align, ioff, flags, |
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Line 439 pool_init(pp, size, align, ioff, flags, |
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pp->pr_log = malloc(pool_logsize * sizeof(struct pool_log), |
pp->pr_log = malloc(pool_logsize * sizeof(struct pool_log), |
M_TEMP, M_NOWAIT); |
M_TEMP, M_NOWAIT); |
if (pp->pr_log == NULL) |
if (pp->pr_log == NULL) |
pp->pr_flags &= ~PR_LOGGING; |
pp->pr_roflags &= ~PR_LOGGING; |
pp->pr_curlogentry = 0; |
pp->pr_curlogentry = 0; |
pp->pr_logsize = pool_logsize; |
pp->pr_logsize = pool_logsize; |
} |
} |
Line 454 pool_destroy(pp) |
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Line 469 pool_destroy(pp) |
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struct pool_item_header *ph; |
struct pool_item_header *ph; |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pp->pr_nget - pp->pr_nput != 0) { |
if (pp->pr_nout != 0) { |
pr_printlog(pp); |
pr_printlog(pp); |
panic("pool_destroy: pool busy: still out: %lu\n", |
panic("pool_destroy: pool busy: still out: %u\n", |
pp->pr_nget - pp->pr_nput); |
pp->pr_nout); |
} |
} |
#endif |
#endif |
|
|
/* Remove all pages */ |
/* Remove all pages */ |
if ((pp->pr_flags & PR_STATIC) == 0) |
if ((pp->pr_roflags & PR_STATIC) == 0) |
while ((ph = pp->pr_pagelist.tqh_first) != NULL) |
while ((ph = pp->pr_pagelist.tqh_first) != NULL) |
pr_rmpage(pp, ph); |
pr_rmpage(pp, ph); |
|
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Line 471 pool_destroy(pp) |
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Line 486 pool_destroy(pp) |
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drainpp = NULL; |
drainpp = NULL; |
|
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#ifdef POOL_DIAGNOSTIC |
#ifdef POOL_DIAGNOSTIC |
if ((pp->pr_flags & PR_LOGGING) != 0) |
if ((pp->pr_roflags & PR_LOGGING) != 0) |
free(pp->pr_log, M_TEMP); |
free(pp->pr_log, M_TEMP); |
#endif |
#endif |
|
|
if (pp->pr_flags & PR_FREEHEADER) |
if (pp->pr_roflags & PR_FREEHEADER) |
free(pp, M_POOL); |
free(pp, M_POOL); |
} |
} |
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Line 502 pool_get(pp, flags) |
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Line 517 pool_get(pp, flags) |
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struct pool_item_header *ph; |
struct pool_item_header *ph; |
|
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if ((pp->pr_flags & PR_STATIC) && (flags & PR_MALLOCOK)) { |
if ((pp->pr_roflags & PR_STATIC) && (flags & PR_MALLOCOK)) { |
pr_printlog(pp); |
pr_printlog(pp); |
panic("pool_get: static"); |
panic("pool_get: static"); |
} |
} |
#endif |
#endif |
|
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simple_lock(&pp->pr_lock); |
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if (curproc == NULL && (flags & PR_WAITOK) != 0) |
if (curproc == NULL && (flags & PR_WAITOK) != 0) |
panic("pool_get: must have NOWAIT"); |
panic("pool_get: must have NOWAIT"); |
|
|
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simple_lock(&pp->pr_lock); |
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|
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startover: |
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/* |
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* Check to see if we've reached the hard limit. If we have, |
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* and we can wait, then wait until an item has been returned to |
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* the pool. |
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*/ |
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#ifdef DIAGNOSTIC |
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if (pp->pr_nout > pp->pr_hardlimit) { |
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simple_unlock(&pp->pr_lock); |
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panic("pool_get: %s: crossed hard limit", pp->pr_wchan); |
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} |
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#endif |
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if (pp->pr_nout == pp->pr_hardlimit) { |
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if (flags & PR_WAITOK) { |
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/* |
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* XXX: A warning isn't logged in this case. Should |
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* it be? |
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*/ |
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pp->pr_flags |= PR_WANTED; |
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simple_unlock(&pp->pr_lock); |
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tsleep((caddr_t)pp, PSWP, pp->pr_wchan, 0); |
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simple_lock(&pp->pr_lock); |
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goto startover; |
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} |
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if (pp->pr_hardlimit_warning != NULL) { |
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/* |
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* Log a message that the hard limit has been hit. |
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*/ |
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struct timeval curtime, logdiff; |
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int s = splclock(); |
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curtime = mono_time; |
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splx(s); |
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timersub(&curtime, &pp->pr_hardlimit_warning_last, |
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&logdiff); |
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if (logdiff.tv_sec >= pp->pr_hardlimit_ratecap) { |
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pp->pr_hardlimit_warning_last = curtime; |
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log(LOG_ERR, "%s\n", pp->pr_hardlimit_warning); |
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} |
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} |
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simple_unlock(&pp->pr_lock); |
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return (NULL); |
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} |
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/* |
/* |
* The convention we use is that if `curpage' is not NULL, then |
* The convention we use is that if `curpage' is not NULL, then |
* it points at a non-empty bucket. In particular, `curpage' |
* it points at a non-empty bucket. In particular, `curpage' |
* never points at a page header which has PR_PHINPAGE set and |
* never points at a page header which has PR_PHINPAGE set and |
* has no items in its bucket. |
* has no items in its bucket. |
*/ |
*/ |
while ((ph = pp->pr_curpage) == NULL) { |
if ((ph = pp->pr_curpage) == NULL) { |
void *v; |
void *v; |
int lkflags = LK_EXCLUSIVE | LK_INTERLOCK | |
int lkflags = LK_EXCLUSIVE | LK_INTERLOCK | |
((flags & PR_WAITOK) == 0 ? LK_NOWAIT : 0); |
((flags & PR_WAITOK) == 0 ? LK_NOWAIT : 0); |
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#ifdef DIAGNOSTIC |
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if (pp->pr_nitems != 0) { |
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simple_unlock(&pp->pr_lock); |
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printf("pool_get: %s: curpage NULL, nitems %u\n", |
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pp->pr_wchan, pp->pr_nitems); |
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panic("pool_get: nitems inconsistent\n"); |
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} |
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#endif |
|
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/* Get long-term lock on pool */ |
/* Get long-term lock on pool */ |
if (lockmgr(&pp->pr_resourcelock, lkflags, &pp->pr_lock) != 0) |
if (lockmgr(&pp->pr_resourcelock, lkflags, &pp->pr_lock) != 0) |
return (NULL); |
return (NULL); |
Line 548 pool_get(pp, flags) |
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Line 616 pool_get(pp, flags) |
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* the page allocator has memory again. Depending |
* the page allocator has memory again. Depending |
* on this pool's usage, we might get stuck here |
* on this pool's usage, we might get stuck here |
* for a long time. |
* for a long time. |
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* |
|
* XXX: maybe we should wake up once a second and |
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* try again? |
*/ |
*/ |
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simple_lock(&pp->pr_lock); |
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(void) lockmgr(&pp->pr_resourcelock, LK_RELEASE, NULL); |
pp->pr_flags |= PR_WANTED; |
pp->pr_flags |= PR_WANTED; |
lockmgr(&pp->pr_resourcelock, LK_RELEASE, NULL); |
simple_unlock(&pp->pr_lock); |
tsleep((caddr_t)pp, PSWP, pp->pr_wchan, 0); |
tsleep((caddr_t)pp, PSWP, pp->pr_wchan, 0); |
simple_lock(&pp->pr_lock); |
simple_lock(&pp->pr_lock); |
continue; |
goto startover; |
} |
} |
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/* We have more memory; add it to the pool */ |
/* We have more memory; add it to the pool */ |
pp->pr_npagealloc++; |
pp->pr_npagealloc++; |
pool_prime_page(pp, v); |
pool_prime_page(pp, v); |
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again: |
again: |
/* Re-acquire pool interlock */ |
/* Re-acquire pool interlock */ |
simple_lock(&pp->pr_lock); |
simple_lock(&pp->pr_lock); |
lockmgr(&pp->pr_resourcelock, LK_RELEASE, NULL); |
lockmgr(&pp->pr_resourcelock, LK_RELEASE, NULL); |
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/* Start the allocation process over. */ |
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goto startover; |
} |
} |
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if ((v = pi = TAILQ_FIRST(&ph->ph_itemlist)) == NULL) |
if ((v = pi = TAILQ_FIRST(&ph->ph_itemlist)) == NULL) |
panic("pool_get: %s: page empty", pp->pr_wchan); |
panic("pool_get: %s: page empty", pp->pr_wchan); |
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#ifdef DIAGNOSTIC |
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if (pp->pr_nitems == 0) { |
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simple_unlock(&pp->pr_lock); |
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printf("pool_get: %s: items on itemlist, nitems %u\n", |
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pp->pr_wchan, pp->pr_nitems); |
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panic("pool_get: nitems inconsistent\n"); |
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} |
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#endif |
pr_log(pp, v, PRLOG_GET, file, line); |
pr_log(pp, v, PRLOG_GET, file, line); |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
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* Remove from item list. |
* Remove from item list. |
*/ |
*/ |
TAILQ_REMOVE(&ph->ph_itemlist, pi, pi_list); |
TAILQ_REMOVE(&ph->ph_itemlist, pi, pi_list); |
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pp->pr_nitems--; |
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pp->pr_nout++; |
if (ph->ph_nmissing == 0) { |
if (ph->ph_nmissing == 0) { |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pp->pr_nidle == 0) |
if (pp->pr_nidle == 0) |
|
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} |
} |
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pp->pr_nget++; |
pp->pr_nget++; |
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/* |
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* If we have a low water mark and we are now below that low |
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* water mark, add more items to the pool. |
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*/ |
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if (pp->pr_nitems < pp->pr_minitems && pool_catchup(pp) != 0) { |
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/* |
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* XXX: Should we log a warning? Should we set up a timeout |
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* to try again in a second or so? The latter could break |
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* a caller's assumptions about interrupt protection, etc. |
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*/ |
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} |
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simple_unlock(&pp->pr_lock); |
simple_unlock(&pp->pr_lock); |
return (v); |
return (v); |
} |
} |
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TAILQ_INSERT_HEAD(&ph->ph_itemlist, pi, pi_list); |
TAILQ_INSERT_HEAD(&ph->ph_itemlist, pi, pi_list); |
ph->ph_nmissing--; |
ph->ph_nmissing--; |
pp->pr_nput++; |
pp->pr_nput++; |
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pp->pr_nitems++; |
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pp->pr_nout--; |
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/* Cancel "pool empty" condition if it exists */ |
/* Cancel "pool empty" condition if it exists */ |
if (pp->pr_curpage == NULL) |
if (pp->pr_curpage == NULL) |
Line 713 pool_prime(pp, n, storage) |
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Line 813 pool_prime(pp, n, storage) |
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int newnitems, newpages; |
int newnitems, newpages; |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (storage && !(pp->pr_flags & PR_STATIC)) |
if (storage && !(pp->pr_roflags & PR_STATIC)) |
panic("pool_prime: static"); |
panic("pool_prime: static"); |
/* !storage && static caught below */ |
/* !storage && static caught below */ |
#endif |
#endif |
Line 726 pool_prime(pp, n, storage) |
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Line 826 pool_prime(pp, n, storage) |
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|
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while (newpages-- > 0) { |
while (newpages-- > 0) { |
|
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if (pp->pr_flags & PR_STATIC) { |
if (pp->pr_roflags & PR_STATIC) { |
cp = storage; |
cp = storage; |
storage += pp->pr_pagesz; |
storage += pp->pr_pagesz; |
} else { |
} else { |
Line 754 pool_prime(pp, n, storage) |
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Line 854 pool_prime(pp, n, storage) |
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/* |
/* |
* Add a page worth of items to the pool. |
* Add a page worth of items to the pool. |
*/ |
*/ |
int |
static int |
pool_prime_page(pp, storage) |
pool_prime_page(pp, storage) |
struct pool *pp; |
struct pool *pp; |
caddr_t storage; |
caddr_t storage; |
Line 768 pool_prime_page(pp, storage) |
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Line 868 pool_prime_page(pp, storage) |
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|
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simple_lock(&pp->pr_lock); |
simple_lock(&pp->pr_lock); |
|
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if ((pp->pr_flags & PR_PHINPAGE) != 0) { |
if ((pp->pr_roflags & PR_PHINPAGE) != 0) { |
ph = (struct pool_item_header *)(cp + pp->pr_phoffset); |
ph = (struct pool_item_header *)(cp + pp->pr_phoffset); |
} else { |
} else { |
ph = pool_get(&phpool, PR_URGENT); |
ph = pool_get(&phpool, PR_URGENT); |
Line 804 pool_prime_page(pp, storage) |
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Line 904 pool_prime_page(pp, storage) |
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* Insert remaining chunks on the bucket list. |
* Insert remaining chunks on the bucket list. |
*/ |
*/ |
n = pp->pr_itemsperpage; |
n = pp->pr_itemsperpage; |
|
pp->pr_nitems += n; |
|
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while (n--) { |
while (n--) { |
pi = (struct pool_item *)cp; |
pi = (struct pool_item *)cp; |
Line 829 pool_prime_page(pp, storage) |
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Line 930 pool_prime_page(pp, storage) |
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return (0); |
return (0); |
} |
} |
|
|
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/* |
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* Like pool_prime(), except this is used by pool_get() when nitems |
|
* drops below the low water mark. This is used to catch up nitmes |
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* with the low water mark. |
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* |
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* Note 1, we never wait for memory or locks here, we let the caller |
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* decide what to do. |
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* |
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* Note 2, this doesn't work with static pools. |
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* |
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* Note 3, we must be called with the pool already locked, and we return |
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* with it locked. |
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*/ |
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static int |
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pool_catchup(pp) |
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struct pool *pp; |
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{ |
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caddr_t cp; |
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int error = 0; |
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u_long nitems; |
|
|
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if (pp->pr_roflags & PR_STATIC) { |
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/* |
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* We dropped below the low water mark, and this is not a |
|
* good thing. Log a warning. |
|
*/ |
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printf("WARNING: static pool `%s' dropped below low water " |
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"mark\n", pp->pr_wchan); |
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return (0); |
|
} |
|
|
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for (;;) { |
|
/* |
|
* Pool is locked; get the current number of items |
|
* availabler. |
|
*/ |
|
nitems = pp->pr_nitems; |
|
|
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/* Acquire the resource lock and release the interlock. */ |
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error = lockmgr(&pp->pr_resourcelock, |
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LK_EXCLUSIVE | LK_INTERLOCK | LK_NOWAIT, &pp->pr_lock); |
|
if (error) |
|
break; |
|
|
|
if (nitems >= pp->pr_minitems) { |
|
simple_lock(&pp->pr_lock); |
|
(void) lockmgr(&pp->pr_resourcelock, LK_RELEASE, |
|
NULL); |
|
break; |
|
} |
|
|
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/* Call the page back-end allocator for more memory. */ |
|
cp = (*pp->pr_alloc)(pp->pr_pagesz, 0, pp->pr_mtype); |
|
if (cp == NULL) { |
|
simple_lock(&pp->pr_lock); |
|
(void) lockmgr(&pp->pr_resourcelock, LK_RELEASE, |
|
NULL); |
|
error = ENOMEM; |
|
break; |
|
} |
|
|
|
pool_prime_page(pp, cp); |
|
|
|
simple_lock(&pp->pr_lock); |
|
(void) lockmgr(&pp->pr_resourcelock, LK_RELEASE, |
|
NULL); |
|
} |
|
|
|
return (error); |
|
} |
|
|
void |
void |
pool_setlowat(pp, n) |
pool_setlowat(pp, n) |
pool_handle_t pp; |
pool_handle_t pp; |
int n; |
int n; |
{ |
{ |
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int error; |
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(void)lockmgr(&pp->pr_resourcelock, LK_EXCLUSIVE, NULL); |
(void)lockmgr(&pp->pr_resourcelock, LK_EXCLUSIVE, NULL); |
pp->pr_minitems = n; |
pp->pr_minitems = n; |
Line 841 pool_setlowat(pp, n) |
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Line 1014 pool_setlowat(pp, n) |
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? 0 |
? 0 |
: roundup(n, pp->pr_itemsperpage) / pp->pr_itemsperpage; |
: roundup(n, pp->pr_itemsperpage) / pp->pr_itemsperpage; |
(void)lockmgr(&pp->pr_resourcelock, LK_RELEASE, NULL); |
(void)lockmgr(&pp->pr_resourcelock, LK_RELEASE, NULL); |
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|
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/* Make sure we're caught up with the newly-set low water mark. */ |
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simple_lock(&pp->pr_lock); |
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error = pool_catchup(pp); |
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simple_unlock(&pp->pr_lock); |
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if (error) { |
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/* |
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* XXX: Should we log a warning? Should we set up a timeout |
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* to try again in a second or so? The latter could break |
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* a caller's assumptions about interrupt protection, etc. |
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*/ |
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} |
} |
} |
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void |
void |
Line 856 pool_sethiwat(pp, n) |
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Line 1042 pool_sethiwat(pp, n) |
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(void)lockmgr(&pp->pr_resourcelock, LK_RELEASE, NULL); |
(void)lockmgr(&pp->pr_resourcelock, LK_RELEASE, NULL); |
} |
} |
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|
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void |
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pool_sethardlimit(pp, n, warnmess, ratecap) |
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pool_handle_t pp; |
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int n; |
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const char *warnmess; |
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int ratecap; |
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{ |
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|
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simple_lock(&pp->pr_lock); |
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|
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pp->pr_hardlimit = n; |
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pp->pr_hardlimit_warning = warnmess; |
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pp->pr_hardlimit_ratecap = ratecap; |
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memset(&pp->pr_hardlimit_warning_last, 0, |
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sizeof(pp->pr_hardlimit_warning_last)); |
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|
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/* |
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* In-line version of pool_sethiwat(), because we need to release |
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* the interlock. |
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*/ |
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(void)lockmgr(&pp->pr_resourcelock, LK_EXCLUSIVE | LK_INTERLOCK, |
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&pp->pr_lock); |
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pp->pr_maxpages = (n == 0) |
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? 0 |
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: roundup(n, pp->pr_itemsperpage) / pp->pr_itemsperpage; |
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(void)lockmgr(&pp->pr_resourcelock, LK_RELEASE, NULL); |
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} |
|
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/* |
/* |
* Default page allocator. |
* Default page allocator. |
Line 921 pool_reclaim (pp) |
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Line 1134 pool_reclaim (pp) |
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struct pool_item_header *ph, *phnext; |
struct pool_item_header *ph, *phnext; |
struct timeval curtime = time; |
struct timeval curtime = time; |
|
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if (pp->pr_flags & PR_STATIC) |
if (pp->pr_roflags & PR_STATIC) |
return; |
return; |
|
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if (simple_lock_try(&pp->pr_lock) == 0) |
if (simple_lock_try(&pp->pr_lock) == 0) |
Line 1018 pool_chk(pp, label) |
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Line 1231 pool_chk(pp, label) |
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caddr_t page; |
caddr_t page; |
|
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page = (caddr_t)((u_long)ph & pp->pr_pagemask); |
page = (caddr_t)((u_long)ph & pp->pr_pagemask); |
if (page != ph->ph_page && (pp->pr_flags & PR_PHINPAGE) != 0) { |
if (page != ph->ph_page && |
|
(pp->pr_roflags & PR_PHINPAGE) != 0) { |
if (label != NULL) |
if (label != NULL) |
printf("%s: ", label); |
printf("%s: ", label); |
printf("pool(%p:%s): page inconsistency: page %p;" |
printf("pool(%p:%s): page inconsistency: page %p;" |