version 1.30, 1999/08/29 00:26:01 |
version 1.30.2.1, 2000/11/20 18:09:07 |
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#include <sys/pool.h> |
#include <sys/pool.h> |
#include <sys/syslog.h> |
#include <sys/syslog.h> |
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#include <vm/vm.h> |
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#include <vm/vm_kern.h> |
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#include <uvm/uvm.h> |
#include <uvm/uvm.h> |
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/* |
/* |
Line 97 struct pool_item_header { |
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Line 94 struct pool_item_header { |
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struct pool_item { |
struct pool_item { |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
int pi_magic; |
int pi_magic; |
#define PI_MAGIC 0xdeadbeef |
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#endif |
#endif |
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#define PI_MAGIC 0xdeadbeef |
/* Other entries use only this list entry */ |
/* Other entries use only this list entry */ |
TAILQ_ENTRY(pool_item) pi_list; |
TAILQ_ENTRY(pool_item) pi_list; |
}; |
}; |
Line 215 pr_enter(pp, file, line) |
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Line 212 pr_enter(pp, file, line) |
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long line; |
long line; |
{ |
{ |
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if (pp->pr_entered_file != NULL) { |
if (__predict_false(pp->pr_entered_file != NULL)) { |
printf("pool %s: reentrancy at file %s line %ld\n", |
printf("pool %s: reentrancy at file %s line %ld\n", |
pp->pr_wchan, file, line); |
pp->pr_wchan, file, line); |
printf(" previous entry at file %s line %ld\n", |
printf(" previous entry at file %s line %ld\n", |
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struct pool *pp; |
struct pool *pp; |
{ |
{ |
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if (pp->pr_entered_file == NULL) { |
if (__predict_false(pp->pr_entered_file == NULL)) { |
printf("pool %s not entered?\n", pp->pr_wchan); |
printf("pool %s not entered?\n", pp->pr_wchan); |
panic("pr_leave"); |
panic("pr_leave"); |
} |
} |
Line 404 pool_init(pp, size, align, ioff, flags, |
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Line 401 pool_init(pp, size, align, ioff, flags, |
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/* |
/* |
* Check arguments and construct default values. |
* Check arguments and construct default values. |
*/ |
*/ |
if (!powerof2(pagesz) || pagesz > PAGE_SIZE) |
if (!powerof2(pagesz)) |
panic("pool_init: page size invalid (%lx)\n", (u_long)pagesz); |
panic("pool_init: page size invalid (%lx)\n", (u_long)pagesz); |
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if (alloc == NULL && release == NULL) { |
if (alloc == NULL && release == NULL) { |
Line 425 pool_init(pp, size, align, ioff, flags, |
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Line 422 pool_init(pp, size, align, ioff, flags, |
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if (size < sizeof(struct pool_item)) |
if (size < sizeof(struct pool_item)) |
size = sizeof(struct pool_item); |
size = sizeof(struct pool_item); |
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size = ALIGN(size); |
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if (size >= pagesz) |
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panic("pool_init: pool item size (%lu) too large", |
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(u_long)size); |
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/* |
/* |
* Initialize the pool structure. |
* Initialize the pool structure. |
*/ |
*/ |
Line 436 pool_init(pp, size, align, ioff, flags, |
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Line 438 pool_init(pp, size, align, ioff, flags, |
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pp->pr_maxpages = UINT_MAX; |
pp->pr_maxpages = UINT_MAX; |
pp->pr_roflags = flags; |
pp->pr_roflags = flags; |
pp->pr_flags = 0; |
pp->pr_flags = 0; |
pp->pr_size = ALIGN(size); |
pp->pr_size = size; |
pp->pr_align = align; |
pp->pr_align = align; |
pp->pr_wchan = wchan; |
pp->pr_wchan = wchan; |
pp->pr_mtype = mtype; |
pp->pr_mtype = mtype; |
Line 449 pool_init(pp, size, align, ioff, flags, |
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Line 451 pool_init(pp, size, align, ioff, flags, |
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pp->pr_nout = 0; |
pp->pr_nout = 0; |
pp->pr_hardlimit = UINT_MAX; |
pp->pr_hardlimit = UINT_MAX; |
pp->pr_hardlimit_warning = NULL; |
pp->pr_hardlimit_warning = NULL; |
pp->pr_hardlimit_ratecap = 0; |
pp->pr_hardlimit_ratecap.tv_sec = 0; |
memset(&pp->pr_hardlimit_warning_last, 0, |
pp->pr_hardlimit_ratecap.tv_usec = 0; |
sizeof(pp->pr_hardlimit_warning_last)); |
pp->pr_hardlimit_warning_last.tv_sec = 0; |
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pp->pr_hardlimit_warning_last.tv_usec = 0; |
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/* |
/* |
* Decide whether to put the page header off page to avoid |
* Decide whether to put the page header off page to avoid |
Line 581 _pool_get(pp, flags, file, line) |
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Line 584 _pool_get(pp, flags, file, line) |
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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_roflags & PR_STATIC) && (flags & PR_MALLOCOK)) { |
if (__predict_false((pp->pr_roflags & PR_STATIC) && |
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(flags & PR_MALLOCOK))) { |
pr_printlog(pp, NULL, printf); |
pr_printlog(pp, NULL, printf); |
panic("pool_get: static"); |
panic("pool_get: static"); |
} |
} |
#endif |
#endif |
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if (curproc == NULL && (flags & PR_WAITOK) != 0) |
if (__predict_false(curproc == NULL && doing_shutdown == 0 && |
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(flags & PR_WAITOK) != 0)) |
panic("pool_get: must have NOWAIT"); |
panic("pool_get: must have NOWAIT"); |
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simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
Line 600 _pool_get(pp, flags, file, line) |
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Line 605 _pool_get(pp, flags, file, line) |
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* the pool. |
* the pool. |
*/ |
*/ |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (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); |
simple_unlock(&pp->pr_slock); |
panic("pool_get: %s: crossed hard limit", pp->pr_wchan); |
panic("pool_get: %s: crossed hard limit", pp->pr_wchan); |
} |
} |
#endif |
#endif |
if (pp->pr_nout == pp->pr_hardlimit) { |
if (__predict_false(pp->pr_nout == pp->pr_hardlimit)) { |
if ((flags & PR_WAITOK) && !(flags & PR_LIMITFAIL)) { |
if ((flags & PR_WAITOK) && !(flags & PR_LIMITFAIL)) { |
/* |
/* |
* XXX: A warning isn't logged in this case. Should |
* XXX: A warning isn't logged in this case. Should |
Line 614 _pool_get(pp, flags, file, line) |
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Line 619 _pool_get(pp, flags, file, line) |
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*/ |
*/ |
pp->pr_flags |= PR_WANTED; |
pp->pr_flags |= PR_WANTED; |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
ltsleep(pp, PSWP, pp->pr_wchan, 0, &pp->pr_slock); |
tsleep((caddr_t)pp, PSWP, pp->pr_wchan, 0); |
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simple_lock(&pp->pr_slock); |
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pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
goto startover; |
goto startover; |
} |
} |
if (pp->pr_hardlimit_warning != NULL) { |
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/* |
/* |
* Log a message that the hard limit has been hit. |
* Log a message that the hard limit has been hit. |
*/ |
*/ |
struct timeval curtime, logdiff; |
if (pp->pr_hardlimit_warning != NULL && |
int s = splclock(); |
ratecheck(&pp->pr_hardlimit_warning_last, |
curtime = mono_time; |
&pp->pr_hardlimit_ratecap)) |
splx(s); |
log(LOG_ERR, "%s\n", pp->pr_hardlimit_warning); |
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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if (flags & PR_URGENT) |
if (flags & PR_URGENT) |
panic("pool_get: urgent"); |
panic("pool_get: urgent"); |
Line 708 _pool_get(pp, flags, file, line) |
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Line 704 _pool_get(pp, flags, file, line) |
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*/ |
*/ |
pp->pr_flags |= PR_WANTED; |
pp->pr_flags |= PR_WANTED; |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
ltsleep(pp, PSWP, pp->pr_wchan, 0, &pp->pr_slock); |
tsleep((caddr_t)pp, PSWP, pp->pr_wchan, 0); |
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simple_lock(&pp->pr_slock); |
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pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
goto startover; |
goto startover; |
} |
} |
Line 723 _pool_get(pp, flags, file, line) |
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Line 717 _pool_get(pp, flags, file, line) |
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goto startover; |
goto startover; |
} |
} |
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if ((v = pi = TAILQ_FIRST(&ph->ph_itemlist)) == NULL) { |
if (__predict_false((v = pi = TAILQ_FIRST(&ph->ph_itemlist)) == NULL)) { |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
panic("pool_get: %s: page empty", pp->pr_wchan); |
panic("pool_get: %s: page empty", pp->pr_wchan); |
} |
} |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pp->pr_nitems == 0) { |
if (__predict_false(pp->pr_nitems == 0)) { |
pr_leave(pp); |
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
printf("pool_get: %s: items on itemlist, nitems %u\n", |
printf("pool_get: %s: items on itemlist, nitems %u\n", |
Line 740 _pool_get(pp, flags, file, line) |
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Line 734 _pool_get(pp, flags, file, line) |
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pr_log(pp, v, PRLOG_GET, file, line); |
pr_log(pp, v, PRLOG_GET, file, line); |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pi->pi_magic != PI_MAGIC) { |
if (__predict_false(pi->pi_magic != PI_MAGIC)) { |
pr_printlog(pp, pi, printf); |
pr_printlog(pp, pi, printf); |
panic("pool_get(%s): free list modified: magic=%x; page %p;" |
panic("pool_get(%s): free list modified: magic=%x; page %p;" |
" item addr %p\n", |
" item addr %p\n", |
Line 756 _pool_get(pp, flags, file, line) |
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Line 750 _pool_get(pp, flags, file, line) |
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pp->pr_nout++; |
pp->pr_nout++; |
if (ph->ph_nmissing == 0) { |
if (ph->ph_nmissing == 0) { |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pp->pr_nidle == 0) |
if (__predict_false(pp->pr_nidle == 0)) |
panic("pool_get: nidle inconsistent"); |
panic("pool_get: nidle inconsistent"); |
#endif |
#endif |
pp->pr_nidle--; |
pp->pr_nidle--; |
Line 764 _pool_get(pp, flags, file, line) |
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Line 758 _pool_get(pp, flags, file, line) |
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ph->ph_nmissing++; |
ph->ph_nmissing++; |
if (TAILQ_FIRST(&ph->ph_itemlist) == NULL) { |
if (TAILQ_FIRST(&ph->ph_itemlist) == NULL) { |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (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); |
simple_unlock(&pp->pr_slock); |
panic("pool_get: %s: nmissing inconsistent", |
panic("pool_get: %s: nmissing inconsistent", |
Line 832 _pool_put(pp, v, file, line) |
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Line 826 _pool_put(pp, v, file, line) |
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pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pp->pr_nout == 0) { |
if (__predict_false(pp->pr_nout == 0)) { |
printf("pool %s: putting with none out\n", |
printf("pool %s: putting with none out\n", |
pp->pr_wchan); |
pp->pr_wchan); |
panic("pool_put"); |
panic("pool_put"); |
Line 841 _pool_put(pp, v, file, line) |
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Line 835 _pool_put(pp, v, file, line) |
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pr_log(pp, v, PRLOG_PUT, file, line); |
pr_log(pp, v, PRLOG_PUT, file, line); |
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if ((ph = pr_find_pagehead(pp, page)) == NULL) { |
if (__predict_false((ph = pr_find_pagehead(pp, page)) == NULL)) { |
pr_printlog(pp, NULL, printf); |
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 857 _pool_put(pp, v, file, line) |
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Line 851 _pool_put(pp, v, file, line) |
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* Return to item list. |
* Return to item list. |
*/ |
*/ |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
/* XXX Should fill the item. */ |
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pi->pi_magic = PI_MAGIC; |
pi->pi_magic = PI_MAGIC; |
#endif |
#endif |
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#ifdef DEBUG |
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{ |
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int i, *ip = v; |
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for (i = 0; i < pp->pr_size / sizeof(int); i++) { |
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*ip++ = PI_MAGIC; |
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} |
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} |
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#endif |
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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++; |
Line 958 pool_prime(pp, n, storage) |
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Line 961 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_roflags & PR_STATIC)) |
if (__predict_false(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 1016 pool_prime_page(pp, storage) |
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Line 1019 pool_prime_page(pp, storage) |
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unsigned int ioff = pp->pr_itemoffset; |
unsigned int ioff = pp->pr_itemoffset; |
int s, n; |
int s, n; |
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if (((u_long)cp & (pp->pr_pagesz - 1)) != 0) |
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panic("pool_prime_page: %s: unaligned page", pp->pr_wchan); |
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if ((pp->pr_roflags & 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 { |
Line 1118 pool_catchup(pp) |
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Line 1124 pool_catchup(pp) |
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simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
cp = (*pp->pr_alloc)(pp->pr_pagesz, 0, pp->pr_mtype); |
cp = (*pp->pr_alloc)(pp->pr_pagesz, 0, pp->pr_mtype); |
simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
if (cp == NULL) { |
if (__predict_false(cp == NULL)) { |
error = ENOMEM; |
error = ENOMEM; |
break; |
break; |
} |
} |
Line 1182 pool_sethardlimit(pp, n, warnmess, ratec |
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Line 1188 pool_sethardlimit(pp, n, warnmess, ratec |
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pp->pr_hardlimit = n; |
pp->pr_hardlimit = n; |
pp->pr_hardlimit_warning = warnmess; |
pp->pr_hardlimit_warning = warnmess; |
pp->pr_hardlimit_ratecap = ratecap; |
pp->pr_hardlimit_ratecap.tv_sec = ratecap; |
memset(&pp->pr_hardlimit_warning_last, 0, |
pp->pr_hardlimit_warning_last.tv_sec = 0; |
sizeof(pp->pr_hardlimit_warning_last)); |
pp->pr_hardlimit_warning_last.tv_usec = 0; |
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/* |
/* |
* In-line version of pool_sethiwat(), because we don't want to |
* In-line version of pool_sethiwat(), because we don't want to |