version 1.24, 1999/04/29 17:47:19 |
version 1.38, 2000/06/26 14:21:14 |
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* POSSIBILITY OF SUCH DAMAGE. |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
*/ |
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#include "opt_pool.h" |
#include "opt_poollog.h" |
#include "opt_poollog.h" |
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#include "opt_lockdebug.h" |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
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#include <sys/syslog.h> |
#include <sys/syslog.h> |
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#include <vm/vm.h> |
#include <vm/vm.h> |
#include <vm/vm_kern.h> |
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#include <uvm/uvm.h> |
#include <uvm/uvm.h> |
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Line 95 struct pool_item_header { |
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Line 96 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; |
}; |
}; |
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#define PR_HASH_INDEX(pp,addr) \ |
#define PR_HASH_INDEX(pp,addr) \ |
(((u_long)(addr) >> (pp)->pr_pageshift) & (PR_HASHTABSIZE - 1)) |
(((u_long)(addr) >> (pp)->pr_pageshift) & (PR_HASHTABSIZE - 1)) |
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Line 115 static void pool_prime_page __P((struct |
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Line 116 static void pool_prime_page __P((struct |
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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)); |
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#if defined(POOL_DIAGNOSTIC) || defined(DEBUG) |
static void pool_print1 __P((struct pool *, const char *, |
static void pool_print1 __P((struct pool *, const char *)); |
void (*)(const char *, ...))); |
#endif |
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#ifdef POOL_DIAGNOSTIC |
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/* |
/* |
* Pool log entry. An array of these is allocated in pool_create(). |
* Pool log entry. An array of these is allocated in pool_create(). |
*/ |
*/ |
Line 127 struct pool_log { |
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Line 126 struct pool_log { |
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const char *pl_file; |
const char *pl_file; |
long pl_line; |
long pl_line; |
int pl_action; |
int pl_action; |
#define PRLOG_GET 1 |
#define PRLOG_GET 1 |
#define PRLOG_PUT 2 |
#define PRLOG_PUT 2 |
void *pl_addr; |
void *pl_addr; |
}; |
}; |
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Line 139 struct pool_log { |
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Line 138 struct pool_log { |
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int pool_logsize = POOL_LOGSIZE; |
int pool_logsize = POOL_LOGSIZE; |
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#ifdef DIAGNOSTIC |
static void pr_log __P((struct pool *, void *, int, const char *, long)); |
static void pr_log __P((struct pool *, void *, int, const char *, long)); |
static void pr_printlog __P((struct pool *)); |
static void pr_printlog __P((struct pool *, struct pool_item *, |
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void (*)(const char *, ...))); |
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static void pr_enter __P((struct pool *, const char *, long)); |
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static void pr_leave __P((struct pool *)); |
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static void pr_enter_check __P((struct pool *, |
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void (*)(const char *, ...))); |
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static __inline__ void |
static __inline__ void |
pr_log(pp, v, action, file, line) |
pr_log(pp, v, action, file, line) |
Line 171 pr_log(pp, v, action, file, line) |
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Line 176 pr_log(pp, v, action, file, line) |
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} |
} |
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static void |
static void |
pr_printlog(pp) |
pr_printlog(pp, pi, pr) |
struct pool *pp; |
struct pool *pp; |
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struct pool_item *pi; |
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void (*pr) __P((const char *, ...)); |
{ |
{ |
int i = pp->pr_logsize; |
int i = pp->pr_logsize; |
int n = pp->pr_curlogentry; |
int n = pp->pr_curlogentry; |
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if ((pp->pr_roflags & PR_LOGGING) == 0) |
if ((pp->pr_roflags & PR_LOGGING) == 0) |
return; |
return; |
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pool_print1(pp, "printlog"); |
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/* |
/* |
* Print all entries in this pool's log. |
* Print all entries in this pool's log. |
*/ |
*/ |
while (i-- > 0) { |
while (i-- > 0) { |
struct pool_log *pl = &pp->pr_log[n]; |
struct pool_log *pl = &pp->pr_log[n]; |
if (pl->pl_action != 0) { |
if (pl->pl_action != 0) { |
printf("log entry %d:\n", i); |
if (pi == NULL || pi == pl->pl_addr) { |
printf("\taction = %s, addr = %p\n", |
(*pr)("\tlog entry %d:\n", i); |
pl->pl_action == PRLOG_GET ? "get" : "put", |
(*pr)("\t\taction = %s, addr = %p\n", |
pl->pl_addr); |
pl->pl_action == PRLOG_GET ? "get" : "put", |
printf("\tfile: %s at line %lu\n", |
pl->pl_addr); |
pl->pl_file, pl->pl_line); |
(*pr)("\t\tfile: %s at line %lu\n", |
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pl->pl_file, pl->pl_line); |
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} |
} |
} |
if (++n >= pp->pr_logsize) |
if (++n >= pp->pr_logsize) |
n = 0; |
n = 0; |
} |
} |
} |
} |
#else |
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#define pr_log(pp, v, action, file, line) |
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#define pr_printlog(pp) |
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#endif |
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static __inline__ void |
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pr_enter(pp, file, line) |
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struct pool *pp; |
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const char *file; |
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long line; |
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{ |
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if (__predict_false(pp->pr_entered_file != NULL)) { |
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printf("pool %s: reentrancy at file %s line %ld\n", |
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pp->pr_wchan, file, line); |
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printf(" previous entry at file %s line %ld\n", |
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pp->pr_entered_file, pp->pr_entered_line); |
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panic("pr_enter"); |
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} |
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pp->pr_entered_file = file; |
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pp->pr_entered_line = line; |
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} |
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static __inline__ void |
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pr_leave(pp) |
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struct pool *pp; |
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{ |
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if (__predict_false(pp->pr_entered_file == NULL)) { |
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printf("pool %s not entered?\n", pp->pr_wchan); |
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panic("pr_leave"); |
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} |
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pp->pr_entered_file = NULL; |
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pp->pr_entered_line = 0; |
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} |
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static __inline__ void |
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pr_enter_check(pp, pr) |
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struct pool *pp; |
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void (*pr) __P((const char *, ...)); |
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{ |
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if (pp->pr_entered_file != NULL) |
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(*pr)("\n\tcurrently entered from file %s line %ld\n", |
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pp->pr_entered_file, pp->pr_entered_line); |
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} |
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#else |
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#define pr_log(pp, v, action, file, line) |
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#define pr_printlog(pp, pi, pr) |
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#define pr_enter(pp, file, line) |
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#define pr_leave(pp) |
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#define pr_enter_check(pp, pr) |
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#endif /* DIAGNOSTIC */ |
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/* |
/* |
* Return the pool page header based on page address. |
* Return the pool page header based on page address. |
Line 260 pr_rmpage(pp, ph) |
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Line 313 pr_rmpage(pp, ph) |
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pp->pr_npagefree++; |
pp->pr_npagefree++; |
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if ((pp->pr_roflags & PR_PHINPAGE) == 0) { |
if ((pp->pr_roflags & PR_PHINPAGE) == 0) { |
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int s; |
LIST_REMOVE(ph, ph_hashlist); |
LIST_REMOVE(ph, ph_hashlist); |
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s = splhigh(); |
pool_put(&phpool, ph); |
pool_put(&phpool, ph); |
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splx(s); |
} |
} |
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if (pp->pr_curpage == ph) { |
if (pp->pr_curpage == ph) { |
Line 302 pool_create(size, align, ioff, nitems, w |
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Line 358 pool_create(size, align, ioff, nitems, w |
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return (NULL); |
return (NULL); |
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flags = PR_FREEHEADER; |
flags = PR_FREEHEADER; |
#ifdef POOL_DIAGNOSTIC |
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if (pool_logsize != 0) |
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flags |= PR_LOGGING; |
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#endif |
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pool_init(pp, size, align, ioff, flags, wchan, pagesz, |
pool_init(pp, size, align, ioff, flags, wchan, pagesz, |
alloc, release, mtype); |
alloc, release, mtype); |
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Line 341 pool_init(pp, size, align, ioff, flags, |
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Line 392 pool_init(pp, size, align, ioff, flags, |
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{ |
{ |
int off, slack, i; |
int off, slack, i; |
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#ifdef POOL_DIAGNOSTIC |
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/* |
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* Always log if POOL_DIAGNOSTIC is defined. |
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*/ |
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if (pool_logsize != 0) |
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flags |= PR_LOGGING; |
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#endif |
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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 365 pool_init(pp, size, align, ioff, flags, |
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Line 424 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 376 pool_init(pp, size, align, ioff, flags, |
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Line 440 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 389 pool_init(pp, size, align, ioff, flags, |
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Line 453 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 440 pool_init(pp, size, align, ioff, flags, |
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Line 505 pool_init(pp, size, align, ioff, flags, |
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pp->pr_hiwat = 0; |
pp->pr_hiwat = 0; |
pp->pr_nidle = 0; |
pp->pr_nidle = 0; |
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#ifdef POOL_DIAGNOSTIC |
if (flags & PR_LOGGING) { |
if ((flags & PR_LOGGING) != 0) { |
if (kmem_map == NULL || |
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)) == NULL) |
if (pp->pr_log == NULL) |
|
pp->pr_roflags &= ~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; |
} |
} |
#endif |
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pp->pr_entered_file = NULL; |
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pp->pr_entered_line = 0; |
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simple_lock_init(&pp->pr_slock); |
simple_lock_init(&pp->pr_slock); |
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Line 479 pool_destroy(pp) |
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Line 545 pool_destroy(pp) |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pp->pr_nout != 0) { |
if (pp->pr_nout != 0) { |
pr_printlog(pp); |
pr_printlog(pp, NULL, printf); |
panic("pool_destroy: pool busy: still out: %u\n", |
panic("pool_destroy: pool busy: still out: %u\n", |
pp->pr_nout); |
pp->pr_nout); |
} |
} |
Line 497 pool_destroy(pp) |
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Line 563 pool_destroy(pp) |
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drainpp = NULL; |
drainpp = NULL; |
simple_unlock(&pool_head_slock); |
simple_unlock(&pool_head_slock); |
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#ifdef POOL_DIAGNOSTIC |
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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 |
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|
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if (pp->pr_roflags & PR_FREEHEADER) |
if (pp->pr_roflags & PR_FREEHEADER) |
free(pp, M_POOL); |
free(pp, M_POOL); |
Line 510 pool_destroy(pp) |
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Line 574 pool_destroy(pp) |
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/* |
/* |
* Grab an item from the pool; must be called at appropriate spl level |
* Grab an item from the pool; must be called at appropriate spl level |
*/ |
*/ |
#ifdef POOL_DIAGNOSTIC |
|
void * |
void * |
_pool_get(pp, flags, file, line) |
_pool_get(pp, flags, file, line) |
struct pool *pp; |
struct pool *pp; |
int flags; |
int flags; |
const char *file; |
const char *file; |
long line; |
long line; |
#else |
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void * |
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pool_get(pp, flags) |
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struct pool *pp; |
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int flags; |
|
#endif |
|
{ |
{ |
void *v; |
void *v; |
struct pool_item *pi; |
struct pool_item *pi; |
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) && |
pr_printlog(pp); |
(flags & PR_MALLOCOK))) { |
|
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 && |
|
(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); |
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pr_enter(pp, file, line); |
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startover: |
startover: |
/* |
/* |
Line 547 pool_get(pp, flags) |
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Line 607 pool_get(pp, flags) |
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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); |
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) { |
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 |
* it be? |
* it be? |
*/ |
*/ |
pp->pr_flags |= PR_WANTED; |
pp->pr_flags |= PR_WANTED; |
|
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
tsleep((caddr_t)pp, PSWP, pp->pr_wchan, 0); |
tsleep((caddr_t)pp, PSWP, pp->pr_wchan, 0); |
simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
|
pr_enter(pp, file, line); |
goto startover; |
goto startover; |
} |
} |
if (pp->pr_hardlimit_warning != NULL) { |
|
/* |
/* |
* 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, |
|
&logdiff); |
|
if (logdiff.tv_sec >= pp->pr_hardlimit_ratecap) { |
|
pp->pr_hardlimit_warning_last = curtime; |
|
log(LOG_ERR, "%s\n", pp->pr_hardlimit_warning); |
|
} |
|
} |
|
|
|
if (flags & PR_URGENT) |
if (flags & PR_URGENT) |
panic("pool_get: urgent"); |
panic("pool_get: urgent"); |
|
|
pp->pr_nfail++; |
pp->pr_nfail++; |
|
|
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pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
return (NULL); |
return (NULL); |
} |
} |
Line 612 pool_get(pp, flags) |
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Line 669 pool_get(pp, 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); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
v = (*pp->pr_alloc)(pp->pr_pagesz, flags, pp->pr_mtype); |
v = (*pp->pr_alloc)(pp->pr_pagesz, flags, pp->pr_mtype); |
simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
|
pr_enter(pp, file, line); |
|
|
if (v == NULL) { |
if (v == NULL) { |
/* |
/* |
Line 631 pool_get(pp, flags) |
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Line 690 pool_get(pp, flags) |
|
|
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if ((flags & PR_WAITOK) == 0) { |
if ((flags & PR_WAITOK) == 0) { |
pp->pr_nfail++; |
pp->pr_nfail++; |
|
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
return (NULL); |
return (NULL); |
} |
} |
Line 647 pool_get(pp, flags) |
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Line 707 pool_get(pp, flags) |
|
* try again? |
* try again? |
*/ |
*/ |
pp->pr_flags |= PR_WANTED; |
pp->pr_flags |= PR_WANTED; |
|
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
tsleep((caddr_t)pp, PSWP, pp->pr_wchan, 0); |
tsleep((caddr_t)pp, PSWP, pp->pr_wchan, 0); |
simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
|
pr_enter(pp, file, line); |
goto startover; |
goto startover; |
} |
} |
|
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Line 661 pool_get(pp, flags) |
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Line 723 pool_get(pp, flags) |
|
goto startover; |
goto startover; |
} |
} |
|
|
if ((v = pi = TAILQ_FIRST(&ph->ph_itemlist)) == NULL) { |
if (__predict_false((v = pi = TAILQ_FIRST(&ph->ph_itemlist)) == NULL)) { |
|
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); |
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", |
pp->pr_wchan, pp->pr_nitems); |
pp->pr_wchan, pp->pr_nitems); |
Line 676 pool_get(pp, flags) |
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Line 740 pool_get(pp, flags) |
|
pr_log(pp, v, PRLOG_GET, file, line); |
pr_log(pp, v, PRLOG_GET, file, line); |
|
|
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (pi->pi_magic != PI_MAGIC) { |
if (__predict_false(pi->pi_magic != PI_MAGIC)) { |
pr_printlog(pp); |
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", |
pp->pr_wchan, pi->pi_magic, ph->ph_page, pi); |
pp->pr_wchan, pi->pi_magic, ph->ph_page, pi); |
Line 692 pool_get(pp, flags) |
|
Line 756 pool_get(pp, flags) |
|
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 700 pool_get(pp, flags) |
|
Line 764 pool_get(pp, flags) |
|
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); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
panic("pool_get: %s: nmissing inconsistent", |
panic("pool_get: %s: nmissing inconsistent", |
pp->pr_wchan); |
pp->pr_wchan); |
Line 741 pool_get(pp, flags) |
|
Line 806 pool_get(pp, flags) |
|
*/ |
*/ |
} |
} |
|
|
|
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
return (v); |
return (v); |
} |
} |
Line 748 pool_get(pp, flags) |
|
Line 814 pool_get(pp, flags) |
|
/* |
/* |
* Return resource to the pool; must be called at appropriate spl level |
* Return resource to the pool; must be called at appropriate spl level |
*/ |
*/ |
#ifdef POOL_DIAGNOSTIC |
|
void |
void |
_pool_put(pp, v, file, line) |
_pool_put(pp, v, file, line) |
struct pool *pp; |
struct pool *pp; |
void *v; |
void *v; |
const char *file; |
const char *file; |
long line; |
long line; |
#else |
|
void |
|
pool_put(pp, v) |
|
struct pool *pp; |
|
void *v; |
|
#endif |
|
{ |
{ |
struct pool_item *pi = v; |
struct pool_item *pi = v; |
struct pool_item_header *ph; |
struct pool_item_header *ph; |
|
|
page = (caddr_t)((u_long)v & pp->pr_pagemask); |
page = (caddr_t)((u_long)v & pp->pr_pagemask); |
|
|
simple_lock(&pp->pr_slock); |
simple_lock(&pp->pr_slock); |
|
pr_enter(pp, file, line); |
|
|
|
#ifdef DIAGNOSTIC |
|
if (__predict_false(pp->pr_nout == 0)) { |
|
printf("pool %s: putting with none out\n", |
|
pp->pr_wchan); |
|
panic("pool_put"); |
|
} |
|
#endif |
|
|
pr_log(pp, v, PRLOG_PUT, file, line); |
pr_log(pp, v, PRLOG_PUT, file, line); |
|
|
if ((ph = pr_find_pagehead(pp, page)) == NULL) { |
if (__predict_false((ph = pr_find_pagehead(pp, page)) == NULL)) { |
pr_printlog(pp); |
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); |
} |
} |
|
|
|
#ifdef LOCKDEBUG |
|
/* |
|
* Check if we're freeing a locked simple lock. |
|
*/ |
|
simple_lock_freecheck((caddr_t)pi, ((caddr_t)pi) + pp->pr_size); |
|
#endif |
|
|
/* |
/* |
* Return to item list. |
* Return to item list. |
*/ |
*/ |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
pi->pi_magic = PI_MAGIC; |
pi->pi_magic = PI_MAGIC; |
#endif |
#endif |
|
#ifdef DEBUG |
|
{ |
|
int i, *ip = v; |
|
|
|
for (i = 0; i < pp->pr_size / sizeof(int); i++) { |
|
*ip++ = PI_MAGIC; |
|
} |
|
} |
|
#endif |
|
|
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++; |
|
|
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++; |
|
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
wakeup((caddr_t)pp); |
wakeup((caddr_t)pp); |
return; |
return; |
|
|
pp->pr_curpage = ph; |
pp->pr_curpage = ph; |
} |
} |
|
|
|
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
|
|
} |
} |
Line 880 pool_prime(pp, n, storage) |
|
Line 967 pool_prime(pp, n, storage) |
|
int newnitems, newpages; |
int newnitems, newpages; |
|
|
#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 907 pool_prime(pp, n, storage) |
|
Line 994 pool_prime(pp, n, storage) |
|
return (ENOMEM); |
return (ENOMEM); |
} |
} |
|
|
|
pp->pr_npagealloc++; |
pool_prime_page(pp, cp); |
pool_prime_page(pp, cp); |
pp->pr_minpages++; |
pp->pr_minpages++; |
} |
} |
Line 935 pool_prime_page(pp, storage) |
|
Line 1023 pool_prime_page(pp, storage) |
|
caddr_t cp = storage; |
caddr_t cp = storage; |
unsigned int align = pp->pr_align; |
unsigned int align = pp->pr_align; |
unsigned int ioff = pp->pr_itemoffset; |
unsigned int ioff = pp->pr_itemoffset; |
int n; |
int s, n; |
|
|
|
if (((u_long)cp & (pp->pr_pagesz - 1)) != 0) |
|
panic("pool_prime_page: %s: unaligned page", pp->pr_wchan); |
|
|
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 { |
|
s = splhigh(); |
ph = pool_get(&phpool, PR_URGENT); |
ph = pool_get(&phpool, PR_URGENT); |
|
splx(s); |
LIST_INSERT_HEAD(&pp->pr_hashtab[PR_HASH_INDEX(pp, cp)], |
LIST_INSERT_HEAD(&pp->pr_hashtab[PR_HASH_INDEX(pp, cp)], |
ph, ph_hashlist); |
ph, ph_hashlist); |
} |
} |
Line 1037 pool_catchup(pp) |
|
Line 1130 pool_catchup(pp) |
|
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; |
} |
} |
|
pp->pr_npagealloc++; |
pool_prime_page(pp, cp); |
pool_prime_page(pp, cp); |
} |
} |
|
|
Line 1100 pool_sethardlimit(pp, n, warnmess, ratec |
|
Line 1194 pool_sethardlimit(pp, n, warnmess, ratec |
|
|
|
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; |
|
|
/* |
/* |
* In-line version of pool_sethiwat(), because we don't want to |
* In-line version of pool_sethiwat(), because we don't want to |
Line 1170 pool_page_free_nointr(v, sz, mtype) |
|
Line 1264 pool_page_free_nointr(v, sz, mtype) |
|
* Release all complete pages that have not been used recently. |
* Release all complete pages that have not been used recently. |
*/ |
*/ |
void |
void |
pool_reclaim(pp) |
_pool_reclaim(pp, file, line) |
pool_handle_t pp; |
pool_handle_t pp; |
|
const char *file; |
|
long line; |
{ |
{ |
struct pool_item_header *ph, *phnext; |
struct pool_item_header *ph, *phnext; |
struct timeval curtime; |
struct timeval curtime; |
Line 1182 pool_reclaim(pp) |
|
Line 1278 pool_reclaim(pp) |
|
|
|
if (simple_lock_try(&pp->pr_slock) == 0) |
if (simple_lock_try(&pp->pr_slock) == 0) |
return; |
return; |
|
pr_enter(pp, file, line); |
|
|
s = splclock(); |
s = splclock(); |
curtime = mono_time; |
curtime = mono_time; |
Line 1212 pool_reclaim(pp) |
|
Line 1309 pool_reclaim(pp) |
|
} |
} |
} |
} |
|
|
|
pr_leave(pp); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
} |
} |
|
|
Line 1245 pool_drain(arg) |
|
Line 1343 pool_drain(arg) |
|
} |
} |
|
|
|
|
#if defined(POOL_DIAGNOSTIC) || defined(DEBUG) |
|
/* |
/* |
* Diagnostic helpers. |
* Diagnostic helpers. |
*/ |
*/ |
void |
void |
pool_print(pp, label) |
pool_print(pp, modif) |
struct pool *pp; |
struct pool *pp; |
const char *label; |
const char *modif; |
{ |
{ |
int s; |
int s; |
|
|
s = splimp(); |
s = splimp(); |
simple_lock(&pp->pr_slock); |
if (simple_lock_try(&pp->pr_slock) == 0) { |
pool_print1(pp, label); |
printf("pool %s is locked; try again later\n", |
|
pp->pr_wchan); |
|
splx(s); |
|
return; |
|
} |
|
pool_print1(pp, modif, printf); |
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
splx(s); |
splx(s); |
} |
} |
|
|
|
void |
|
pool_printit(pp, modif, pr) |
|
struct pool *pp; |
|
const char *modif; |
|
void (*pr) __P((const char *, ...)); |
|
{ |
|
int didlock = 0; |
|
|
|
if (pp == NULL) { |
|
(*pr)("Must specify a pool to print.\n"); |
|
return; |
|
} |
|
|
|
/* |
|
* Called from DDB; interrupts should be blocked, and all |
|
* other processors should be paused. We can skip locking |
|
* the pool in this case. |
|
* |
|
* We do a simple_lock_try() just to print the lock |
|
* status, however. |
|
*/ |
|
|
|
if (simple_lock_try(&pp->pr_slock) == 0) |
|
(*pr)("WARNING: pool %s is locked\n", pp->pr_wchan); |
|
else |
|
didlock = 1; |
|
|
|
pool_print1(pp, modif, pr); |
|
|
|
if (didlock) |
|
simple_unlock(&pp->pr_slock); |
|
} |
|
|
static void |
static void |
pool_print1(pp, label) |
pool_print1(pp, modif, pr) |
struct pool *pp; |
struct pool *pp; |
const char *label; |
const char *modif; |
|
void (*pr) __P((const char *, ...)); |
{ |
{ |
|
struct pool_item_header *ph; |
|
#ifdef DIAGNOSTIC |
|
struct pool_item *pi; |
|
#endif |
|
int print_log = 0, print_pagelist = 0; |
|
char c; |
|
|
|
while ((c = *modif++) != '\0') { |
|
if (c == 'l') |
|
print_log = 1; |
|
if (c == 'p') |
|
print_pagelist = 1; |
|
modif++; |
|
} |
|
|
|
(*pr)("POOL %s: size %u, align %u, ioff %u, roflags 0x%08x\n", |
|
pp->pr_wchan, pp->pr_size, pp->pr_align, pp->pr_itemoffset, |
|
pp->pr_roflags); |
|
(*pr)("\tpagesz %u, mtype %d\n", pp->pr_pagesz, pp->pr_mtype); |
|
(*pr)("\talloc %p, release %p\n", pp->pr_alloc, pp->pr_free); |
|
(*pr)("\tminitems %u, minpages %u, maxpages %u, npages %u\n", |
|
pp->pr_minitems, pp->pr_minpages, pp->pr_maxpages, pp->pr_npages); |
|
(*pr)("\titemsperpage %u, nitems %u, nout %u, hardlimit %u\n", |
|
pp->pr_itemsperpage, pp->pr_nitems, pp->pr_nout, pp->pr_hardlimit); |
|
|
|
(*pr)("\n\tnget %lu, nfail %lu, nput %lu\n", |
|
pp->pr_nget, pp->pr_nfail, pp->pr_nput); |
|
(*pr)("\tnpagealloc %lu, npagefree %lu, hiwat %u, nidle %lu\n", |
|
pp->pr_npagealloc, pp->pr_npagefree, pp->pr_hiwat, pp->pr_nidle); |
|
|
|
if (print_pagelist == 0) |
|
goto skip_pagelist; |
|
|
|
if ((ph = TAILQ_FIRST(&pp->pr_pagelist)) != NULL) |
|
(*pr)("\n\tpage list:\n"); |
|
for (; ph != NULL; ph = TAILQ_NEXT(ph, ph_pagelist)) { |
|
(*pr)("\t\tpage %p, nmissing %d, time %lu,%lu\n", |
|
ph->ph_page, ph->ph_nmissing, |
|
(u_long)ph->ph_time.tv_sec, |
|
(u_long)ph->ph_time.tv_usec); |
|
#ifdef DIAGNOSTIC |
|
for (pi = TAILQ_FIRST(&ph->ph_itemlist); pi != NULL; |
|
pi = TAILQ_NEXT(pi, pi_list)) { |
|
if (pi->pi_magic != PI_MAGIC) { |
|
(*pr)("\t\t\titem %p, magic 0x%x\n", |
|
pi, pi->pi_magic); |
|
} |
|
} |
|
#endif |
|
} |
|
if (pp->pr_curpage == NULL) |
|
(*pr)("\tno current page\n"); |
|
else |
|
(*pr)("\tcurpage %p\n", pp->pr_curpage->ph_page); |
|
|
|
skip_pagelist: |
|
|
|
if (print_log == 0) |
|
goto skip_log; |
|
|
|
(*pr)("\n"); |
|
if ((pp->pr_roflags & PR_LOGGING) == 0) |
|
(*pr)("\tno log\n"); |
|
else |
|
pr_printlog(pp, NULL, pr); |
|
|
if (label != NULL) |
skip_log: |
printf("%s: ", label); |
|
|
|
printf("pool %s: nalloc %lu nfree %lu npagealloc %lu npagefree %lu\n" |
pr_enter_check(pp, pr); |
" npages %u minitems %u itemsperpage %u itemoffset %u\n" |
|
" nidle %lu\n", |
|
pp->pr_wchan, |
|
pp->pr_nget, |
|
pp->pr_nput, |
|
pp->pr_npagealloc, |
|
pp->pr_npagefree, |
|
pp->pr_npages, |
|
pp->pr_minitems, |
|
pp->pr_itemsperpage, |
|
pp->pr_itemoffset, |
|
pp->pr_nidle); |
|
} |
} |
|
|
int |
int |
|
|
simple_unlock(&pp->pr_slock); |
simple_unlock(&pp->pr_slock); |
return (r); |
return (r); |
} |
} |
#endif /* POOL_DIAGNOSTIC || DEBUG */ |
|