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Merge commit 'refs/top-bases/linux-debug-zerocopy' into linux-debug-zerocopy

This commit is contained in:
Brian Behlendorf 2009-03-19 19:56:08 -07:00
parent 146fb170ef dabea57f25
commit d8e81db97b
7 changed files with 155 additions and 224 deletions
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1
cmd/zdb/zdb.c
View File

@ -52,6 +52,7 @@
#include <sys/zfs_fuid.h> #include <sys/zfs_fuid.h>
#include <sys/arc.h> #include <sys/arc.h>
#undef ZFS_MAXNAMELEN #undef ZFS_MAXNAMELEN
#undef verify
#include <libzfs.h> #include <libzfs.h>
const char cmdname[] = "zdb"; const char cmdname[] = "zdb";

2
cmd/zinject/translate.c
View File

@ -25,6 +25,8 @@
#include <libzfs.h> #include <libzfs.h>
#undef verify /* both libzfs.h and zfs_context.h want to define this */
#include <sys/zfs_context.h> #include <sys/zfs_context.h>
#include <errno.h> #include <errno.h>

97
cmd/ztest/ztest.c
View File

@ -138,7 +138,7 @@ typedef struct ztest_args {
spa_t *za_spa; spa_t *za_spa;
objset_t *za_os; objset_t *za_os;
zilog_t *za_zilog; zilog_t *za_zilog;
pthread_t za_thread; thread_t za_thread;
uint64_t za_instance; uint64_t za_instance;
uint64_t za_random; uint64_t za_random;
uint64_t za_diroff; uint64_t za_diroff;
@ -221,8 +221,8 @@ ztest_info_t ztest_info[] = {
* Stuff we need to share writably between parent and child. * Stuff we need to share writably between parent and child.
*/ */
typedef struct ztest_shared { typedef struct ztest_shared {
pthread_mutex_t zs_vdev_lock; mutex_t zs_vdev_lock;
pthread_rwlock_t zs_name_lock; rwlock_t zs_name_lock;
uint64_t zs_vdev_primaries; uint64_t zs_vdev_primaries;
uint64_t zs_vdev_aux; uint64_t zs_vdev_aux;
uint64_t zs_enospc_count; uint64_t zs_enospc_count;
@ -231,7 +231,7 @@ typedef struct ztest_shared {
uint64_t zs_alloc; uint64_t zs_alloc;
uint64_t zs_space; uint64_t zs_space;
ztest_info_t zs_info[ZTEST_FUNCS]; ztest_info_t zs_info[ZTEST_FUNCS];
pthread_mutex_t zs_sync_lock[ZTEST_SYNC_LOCKS]; mutex_t zs_sync_lock[ZTEST_SYNC_LOCKS];
uint64_t zs_seq[ZTEST_SYNC_LOCKS]; uint64_t zs_seq[ZTEST_SYNC_LOCKS];
} ztest_shared_t; } ztest_shared_t;
@ -804,7 +804,7 @@ ztest_spa_create_destroy(ztest_args_t *za)
* Attempt to create an existing pool. It shouldn't matter * Attempt to create an existing pool. It shouldn't matter
* what's in the nvroot; we should fail with EEXIST. * what's in the nvroot; we should fail with EEXIST.
*/ */
(void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock); (void) rw_rdlock(&ztest_shared->zs_name_lock);
nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1); nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
error = spa_create(za->za_pool, nvroot, NULL, NULL, NULL); error = spa_create(za->za_pool, nvroot, NULL, NULL, NULL);
nvlist_free(nvroot); nvlist_free(nvroot);
@ -820,7 +820,7 @@ ztest_spa_create_destroy(ztest_args_t *za)
fatal(0, "spa_destroy() = %d", error); fatal(0, "spa_destroy() = %d", error);
spa_close(spa, FTAG); spa_close(spa, FTAG);
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
static vdev_t * static vdev_t *
@ -851,7 +851,7 @@ ztest_vdev_add_remove(ztest_args_t *za)
nvlist_t *nvroot; nvlist_t *nvroot;
int error; int error;
(void) pthread_mutex_lock(&ztest_shared->zs_vdev_lock); (void) mutex_lock(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
@ -869,7 +869,7 @@ ztest_vdev_add_remove(ztest_args_t *za)
error = spa_vdev_add(spa, nvroot); error = spa_vdev_add(spa, nvroot);
nvlist_free(nvroot); nvlist_free(nvroot);
(void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
if (error == ENOSPC) if (error == ENOSPC)
ztest_record_enospc("spa_vdev_add"); ztest_record_enospc("spa_vdev_add");
@ -898,7 +898,7 @@ ztest_vdev_aux_add_remove(ztest_args_t *za)
aux = ZPOOL_CONFIG_L2CACHE; aux = ZPOOL_CONFIG_L2CACHE;
} }
(void) pthread_mutex_lock(&ztest_shared->zs_vdev_lock); (void) mutex_lock(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
@ -954,7 +954,7 @@ ztest_vdev_aux_add_remove(ztest_args_t *za)
fatal(0, "spa_vdev_remove(%llu) = %d", guid, error); fatal(0, "spa_vdev_remove(%llu) = %d", guid, error);
} }
(void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
} }
/* /*
@ -980,7 +980,7 @@ ztest_vdev_attach_detach(ztest_args_t *za)
int oldvd_is_log; int oldvd_is_log;
int error, expected_error; int error, expected_error;
(void) pthread_mutex_lock(&ztest_shared->zs_vdev_lock); (void) mutex_lock(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
@ -1040,7 +1040,7 @@ ztest_vdev_attach_detach(ztest_args_t *za)
if (error != 0 && error != ENODEV && error != EBUSY && if (error != 0 && error != ENODEV && error != EBUSY &&
error != ENOTSUP) error != ENOTSUP)
fatal(0, "detach (%s) returned %d", oldpath, error); fatal(0, "detach (%s) returned %d", oldpath, error);
(void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
return; return;
} }
@ -1133,7 +1133,7 @@ ztest_vdev_attach_detach(ztest_args_t *za)
(longlong_t)newsize, replacing, error, expected_error); (longlong_t)newsize, replacing, error, expected_error);
} }
(void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
} }
/* /*
@ -1149,7 +1149,7 @@ ztest_vdev_LUN_growth(ztest_args_t *za)
size_t fsize; size_t fsize;
int fd; int fd;
(void) pthread_mutex_lock(&ztest_shared->zs_vdev_lock); (void) mutex_lock(&ztest_shared->zs_vdev_lock);
/* /*
* Pick a random leaf vdev. * Pick a random leaf vdev.
@ -1180,7 +1180,7 @@ ztest_vdev_LUN_growth(ztest_args_t *za)
(void) close(fd); (void) close(fd);
} }
(void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
} }
/* ARGSUSED */ /* ARGSUSED */
@ -1279,7 +1279,7 @@ ztest_dmu_objset_create_destroy(ztest_args_t *za)
uint64_t seq; uint64_t seq;
uint64_t objects; uint64_t objects;
(void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock); (void) rw_rdlock(&ztest_shared->zs_name_lock);
(void) snprintf(name, 100, "%s/%s_temp_%llu", za->za_pool, za->za_pool, (void) snprintf(name, 100, "%s/%s_temp_%llu", za->za_pool, za->za_pool,
(u_longlong_t)za->za_instance); (u_longlong_t)za->za_instance);
@ -1322,7 +1322,7 @@ ztest_dmu_objset_create_destroy(ztest_args_t *za)
if (error) { if (error) {
if (error == ENOSPC) { if (error == ENOSPC) {
ztest_record_enospc("dmu_objset_create"); ztest_record_enospc("dmu_objset_create");
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
return; return;
} }
fatal(0, "dmu_objset_create(%s) = %d", name, error); fatal(0, "dmu_objset_create(%s) = %d", name, error);
@ -1404,7 +1404,7 @@ ztest_dmu_objset_create_destroy(ztest_args_t *za)
if (error) if (error)
fatal(0, "dmu_objset_destroy(%s) = %d", name, error); fatal(0, "dmu_objset_destroy(%s) = %d", name, error);
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
/* /*
@ -1418,7 +1418,7 @@ ztest_dmu_snapshot_create_destroy(ztest_args_t *za)
char snapname[100]; char snapname[100];
char osname[MAXNAMELEN]; char osname[MAXNAMELEN];
(void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock); (void) rw_rdlock(&ztest_shared->zs_name_lock);
dmu_objset_name(os, osname); dmu_objset_name(os, osname);
(void) snprintf(snapname, 100, "%s@%llu", osname, (void) snprintf(snapname, 100, "%s@%llu", osname,
(u_longlong_t)za->za_instance); (u_longlong_t)za->za_instance);
@ -1431,7 +1431,7 @@ ztest_dmu_snapshot_create_destroy(ztest_args_t *za)
ztest_record_enospc("dmu_take_snapshot"); ztest_record_enospc("dmu_take_snapshot");
else if (error != 0 && error != EEXIST) else if (error != 0 && error != EEXIST)
fatal(0, "dmu_take_snapshot() = %d", error); fatal(0, "dmu_take_snapshot() = %d", error);
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
/* /*
@ -1929,7 +1929,7 @@ ztest_dmu_write_parallel(ztest_args_t *za)
int bs = ZTEST_DIROBJ_BLOCKSIZE; int bs = ZTEST_DIROBJ_BLOCKSIZE;
int do_free = 0; int do_free = 0;
uint64_t off, txg, txg_how; uint64_t off, txg, txg_how;
pthread_mutex_t *lp; mutex_t *lp;
char osname[MAXNAMELEN]; char osname[MAXNAMELEN];
char iobuf[SPA_MAXBLOCKSIZE]; char iobuf[SPA_MAXBLOCKSIZE];
blkptr_t blk; blkptr_t blk;
@ -1980,7 +1980,7 @@ ztest_dmu_write_parallel(ztest_args_t *za)
txg = dmu_tx_get_txg(tx); txg = dmu_tx_get_txg(tx);
lp = &ztest_shared->zs_sync_lock[b]; lp = &ztest_shared->zs_sync_lock[b];
(void) pthread_mutex_lock(lp); (void) mutex_lock(lp);
wbt->bt_objset = dmu_objset_id(os); wbt->bt_objset = dmu_objset_id(os);
wbt->bt_object = ZTEST_DIROBJ; wbt->bt_object = ZTEST_DIROBJ;
@ -2033,7 +2033,7 @@ ztest_dmu_write_parallel(ztest_args_t *za)
dmu_write(os, ZTEST_DIROBJ, off, btsize, wbt, tx); dmu_write(os, ZTEST_DIROBJ, off, btsize, wbt, tx);
} }
(void) pthread_mutex_unlock(lp); (void) mutex_unlock(lp);
if (ztest_random(1000) == 0) if (ztest_random(1000) == 0)
(void) poll(NULL, 0, 1); /* open dn_notxholds window */ (void) poll(NULL, 0, 1); /* open dn_notxholds window */
@ -2052,13 +2052,13 @@ ztest_dmu_write_parallel(ztest_args_t *za)
/* /*
* dmu_sync() the block we just wrote. * dmu_sync() the block we just wrote.
*/ */
(void) pthread_mutex_lock(lp); (void) mutex_lock(lp);
blkoff = P2ALIGN_TYPED(off, bs, uint64_t); blkoff = P2ALIGN_TYPED(off, bs, uint64_t);
error = dmu_buf_hold(os, ZTEST_DIROBJ, blkoff, FTAG, &db); error = dmu_buf_hold(os, ZTEST_DIROBJ, blkoff, FTAG, &db);
za->za_dbuf = db; za->za_dbuf = db;
if (error) { if (error) {
(void) pthread_mutex_unlock(lp); (void) mutex_unlock(lp);
return; return;
} }
blkoff = off - blkoff; blkoff = off - blkoff;
@ -2066,7 +2066,7 @@ ztest_dmu_write_parallel(ztest_args_t *za)
dmu_buf_rele(db, FTAG); dmu_buf_rele(db, FTAG);
za->za_dbuf = NULL; za->za_dbuf = NULL;
(void) pthread_mutex_unlock(lp); (void) mutex_unlock(lp);
if (error) if (error)
return; return;
@ -2446,7 +2446,7 @@ ztest_dsl_prop_get_set(ztest_args_t *za)
char osname[MAXNAMELEN]; char osname[MAXNAMELEN];
int error; int error;
(void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock); (void) rw_rdlock(&ztest_shared->zs_name_lock);
dmu_objset_name(os, osname); dmu_objset_name(os, osname);
@ -2485,7 +2485,7 @@ ztest_dsl_prop_get_set(ztest_args_t *za)
} }
} }
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
/* /*
@ -2649,7 +2649,7 @@ ztest_spa_rename(ztest_args_t *za)
int error; int error;
spa_t *spa; spa_t *spa;
(void) pthread_rwlock_wrlock(&ztest_shared->zs_name_lock); (void) rw_wrlock(&ztest_shared->zs_name_lock);
oldname = za->za_pool; oldname = za->za_pool;
newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL); newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
@ -2701,7 +2701,7 @@ ztest_spa_rename(ztest_args_t *za)
umem_free(newname, strlen(newname) + 1); umem_free(newname, strlen(newname) + 1);
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
@ -2939,18 +2939,15 @@ ztest_spa_import_export(char *oldname, char *newname)
nvlist_free(config); nvlist_free(config);
} }
static void * static void
ztest_resume(void *arg) ztest_resume(spa_t *spa)
{ {
spa_t *spa = arg;
if (spa_suspended(spa)) { if (spa_suspended(spa)) {
spa_vdev_state_enter(spa); spa_vdev_state_enter(spa);
vdev_clear(spa, NULL); vdev_clear(spa, NULL);
(void) spa_vdev_state_exit(spa, NULL, 0); (void) spa_vdev_state_exit(spa, NULL, 0);
zio_resume(spa); zio_resume(spa);
} }
return (NULL);
} }
static void * static void *
@ -3040,16 +3037,15 @@ ztest_run(char *pool)
ztest_args_t *za; ztest_args_t *za;
spa_t *spa; spa_t *spa;
char name[100]; char name[100];
pthread_t resume_tid; thread_t resume_tid;
ztest_exiting = B_FALSE; ztest_exiting = B_FALSE;
(void) pthread_mutex_init(&zs->zs_vdev_lock, NULL); (void) _mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL);
(void) pthread_rwlock_init(&zs->zs_name_lock, NULL); (void) rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL);
for (t = 0; t < ZTEST_SYNC_LOCKS; t++) for (t = 0; t < ZTEST_SYNC_LOCKS; t++)
(void) pthread_mutex_init(&zs->zs_sync_lock[t], NULL); (void) _mutex_init(&zs->zs_sync_lock[t], USYNC_THREAD, NULL);
/* /*
* Destroy one disk before we even start. * Destroy one disk before we even start.
@ -3116,7 +3112,8 @@ ztest_run(char *pool)
/* /*
* Create a thread to periodically resume suspended I/O. * Create a thread to periodically resume suspended I/O.
*/ */
VERIFY(pthread_create(&resume_tid, NULL, ztest_resume_thread, spa)==0); VERIFY(thr_create(0, 0, ztest_resume_thread, spa, THR_BOUND,
&resume_tid) == 0);
/* /*
* Verify that we can safely inquire about about any object, * Verify that we can safely inquire about about any object,
@ -3165,7 +3162,7 @@ ztest_run(char *pool)
if (t < zopt_datasets) { if (t < zopt_datasets) {
int test_future = FALSE; int test_future = FALSE;
(void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock); (void) rw_rdlock(&ztest_shared->zs_name_lock);
(void) snprintf(name, 100, "%s/%s_%d", pool, pool, d); (void) snprintf(name, 100, "%s/%s_%d", pool, pool, d);
error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0, error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0,
ztest_create_cb, NULL); ztest_create_cb, NULL);
@ -3173,7 +3170,7 @@ ztest_run(char *pool)
test_future = TRUE; test_future = TRUE;
} else if (error == ENOSPC) { } else if (error == ENOSPC) {
zs->zs_enospc_count++; zs->zs_enospc_count++;
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
break; break;
} else if (error != 0) { } else if (error != 0) {
fatal(0, "dmu_objset_create(%s) = %d", fatal(0, "dmu_objset_create(%s) = %d",
@ -3184,7 +3181,7 @@ ztest_run(char *pool)
if (error) if (error)
fatal(0, "dmu_objset_open('%s') = %d", fatal(0, "dmu_objset_open('%s') = %d",
name, error); name, error);
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
if (test_future) if (test_future)
ztest_dmu_check_future_leak(&za[t]); ztest_dmu_check_future_leak(&za[t]);
zil_replay(za[d].za_os, za[d].za_os, zil_replay(za[d].za_os, za[d].za_os,
@ -3192,12 +3189,12 @@ ztest_run(char *pool)
za[d].za_zilog = zil_open(za[d].za_os, NULL); za[d].za_zilog = zil_open(za[d].za_os, NULL);
} }
VERIFY(pthread_create(&za[t].za_thread, NULL, ztest_thread, VERIFY(thr_create(0, 0, ztest_thread, &za[t], THR_BOUND,
&za[t]) == 0); &za[t].za_thread) == 0);
} }
while (--t >= 0) { while (--t >= 0) {
VERIFY(pthread_join(za[t].za_thread, NULL) == 0); VERIFY(thr_join(za[t].za_thread, NULL, NULL) == 0);
if (t < zopt_datasets) { if (t < zopt_datasets) {
zil_close(za[t].za_zilog); zil_close(za[t].za_zilog);
dmu_objset_close(za[t].za_os); dmu_objset_close(za[t].za_os);
@ -3216,14 +3213,14 @@ ztest_run(char *pool)
* If we had out-of-space errors, destroy a random objset. * If we had out-of-space errors, destroy a random objset.
*/ */
if (zs->zs_enospc_count != 0) { if (zs->zs_enospc_count != 0) {
(void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock); (void) rw_rdlock(&ztest_shared->zs_name_lock);
d = (int)ztest_random(zopt_datasets); d = (int)ztest_random(zopt_datasets);
(void) snprintf(name, 100, "%s/%s_%d", pool, pool, d); (void) snprintf(name, 100, "%s/%s_%d", pool, pool, d);
if (zopt_verbose >= 3) if (zopt_verbose >= 3)
(void) printf("Destroying %s to free up space\n", name); (void) printf("Destroying %s to free up space\n", name);
(void) dmu_objset_find(name, ztest_destroy_cb, &za[d], (void) dmu_objset_find(name, ztest_destroy_cb, &za[d],
DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
txg_wait_synced(spa_get_dsl(spa), 0); txg_wait_synced(spa_get_dsl(spa), 0);
@ -3232,7 +3229,7 @@ ztest_run(char *pool)
/* Kill the resume thread */ /* Kill the resume thread */
ztest_exiting = B_TRUE; ztest_exiting = B_TRUE;
VERIFY(pthread_join(resume_tid, NULL) == 0); VERIFY(thr_join(resume_tid, NULL, NULL) == 0);
ztest_resume(spa); ztest_resume(spa);
/* /*

7
lib/libuutil/uu_misc.c
View File

@ -37,6 +37,7 @@
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <sys/debug.h> #include <sys/debug.h>
#include <thread.h>
#include <unistd.h> #include <unistd.h>
#if !defined(TEXT_DOMAIN) #if !defined(TEXT_DOMAIN)
@ -69,12 +70,11 @@ static va_list uu_panic_args;
static pthread_t uu_panic_thread; static pthread_t uu_panic_thread;
static uint32_t _uu_main_error; static uint32_t _uu_main_error;
static __thread int _uu_main_thread = 0;
void void
uu_set_error(uint_t code) uu_set_error(uint_t code)
{ {
if (_uu_main_thread) { if (thr_main() != 0) {
_uu_main_error = code; _uu_main_error = code;
return; return;
} }
@ -103,7 +103,7 @@ uu_set_error(uint_t code)
uint32_t uint32_t
uu_error(void) uu_error(void)
{ {
if (_uu_main_thread) if (thr_main() != 0)
return (_uu_main_error); return (_uu_main_error);
if (uu_error_key_setup < 0) /* can't happen? */ if (uu_error_key_setup < 0) /* can't happen? */
@ -261,6 +261,5 @@ uu_init(void) __attribute__((constructor));
static void static void
uu_init(void) uu_init(void)
{ {
_uu_main_thread = 1;
(void) pthread_atfork(uu_lockup, uu_release, uu_release_child); (void) pthread_atfork(uu_lockup, uu_release, uu_release_child);
} }

70
lib/libzpool/include/sys/zfs_context.h
View File

@ -50,7 +50,8 @@ extern "C" {
#include <errno.h> #include <errno.h>
#include <string.h> #include <string.h>
#include <strings.h> #include <strings.h>
#include <pthread.h> #include <synch.h>
#include <thread.h>
#include <assert.h> #include <assert.h>
#include <alloca.h> #include <alloca.h>
#include <umem.h> #include <umem.h>
@ -109,7 +110,6 @@ extern void vpanic(const char *, __va_list);
#define fm_panic panic #define fm_panic panic
/* This definition is copied from assert.h. */ /* This definition is copied from assert.h. */
#ifndef verify
#if defined(__STDC__) #if defined(__STDC__)
#if __STDC_VERSION__ - 0 >= 199901L #if __STDC_VERSION__ - 0 >= 199901L
#define verify(EX) (void)((EX) || \ #define verify(EX) (void)((EX) || \
@ -120,10 +120,7 @@ extern void vpanic(const char *, __va_list);
#else #else
#define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0)) #define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0))
#endif /* __STDC__ */ #endif /* __STDC__ */
#endif
#undef VERIFY
#undef ASSERT
#define VERIFY verify #define VERIFY verify
#define ASSERT assert #define ASSERT assert
@ -196,18 +193,15 @@ _NOTE(CONSTCOND) } while (0)
/* /*
* Threads * Threads
*/ */
#define curthread ((void *)(uintptr_t)pthread_self()) #define curthread ((void *)(uintptr_t)thr_self())
#define tsd_get(key) pthread_getspecific(key)
#define tsd_set(key, val) pthread_setspecific(key, val)
typedef struct kthread kthread_t; typedef struct kthread kthread_t;
typedef void (*thread_func_t)(void *);
#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
zk_thread_create((thread_func_t)func, arg) zk_thread_create(func, arg)
#define thread_exit() pthread_exit(NULL) #define thread_exit() thr_exit(NULL)
extern kthread_t *zk_thread_create(thread_func_t func, void *arg); extern kthread_t *zk_thread_create(void (*func)(), void *arg);
#define issig(why) (FALSE) #define issig(why) (FALSE)
#define ISSIG(thr, why) (FALSE) #define ISSIG(thr, why) (FALSE)
@ -215,18 +209,28 @@ extern kthread_t *zk_thread_create(thread_func_t func, void *arg);
/* /*
* Mutexes * Mutexes
*/ */
#define MTX_MAGIC 0x9522f51362a6e326ull
typedef struct kmutex { typedef struct kmutex {
void *m_owner; void *m_owner;
uint64_t m_magic; boolean_t initialized;
pthread_mutex_t m_lock; mutex_t m_lock;
} kmutex_t; } kmutex_t;
#define MUTEX_DEFAULT 0 #define MUTEX_DEFAULT USYNC_THREAD
#define MUTEX_HELD(m) ((m)->m_owner == curthread) #undef MUTEX_HELD
#define MUTEX_HELD(m) _mutex_held(&(m)->m_lock)
extern void mutex_init(kmutex_t *mp, char *name, int type, void *cookie); /*
extern void mutex_destroy(kmutex_t *mp); * Argh -- we have to get cheesy here because the kernel and userland
* have different signatures for the same routine.
*/
extern int _mutex_init(mutex_t *mp, int type, void *arg);
extern int _mutex_destroy(mutex_t *mp);
#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp))
#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp))
extern void zmutex_init(kmutex_t *mp);
extern void zmutex_destroy(kmutex_t *mp);
extern void mutex_enter(kmutex_t *mp); extern void mutex_enter(kmutex_t *mp);
extern void mutex_exit(kmutex_t *mp); extern void mutex_exit(kmutex_t *mp);
extern int mutex_tryenter(kmutex_t *mp); extern int mutex_tryenter(kmutex_t *mp);
@ -235,24 +239,23 @@ extern void *mutex_owner(kmutex_t *mp);
/* /*
* RW locks * RW locks
*/ */
#define RW_MAGIC 0x4d31fb123648e78aull
typedef struct krwlock { typedef struct krwlock {
void *rw_owner; void *rw_owner;
void *rw_wr_owner; boolean_t initialized;
uint64_t rw_magic; rwlock_t rw_lock;
pthread_rwlock_t rw_lock;
uint_t rw_readers;
} krwlock_t; } krwlock_t;
typedef int krw_t; typedef int krw_t;
#define RW_READER 0 #define RW_READER 0
#define RW_WRITER 1 #define RW_WRITER 1
#define RW_DEFAULT 0 #define RW_DEFAULT USYNC_THREAD
#define RW_READ_HELD(x) ((x)->rw_readers > 0) #undef RW_READ_HELD
#define RW_WRITE_HELD(x) ((x)->rw_wr_owner == curthread) #define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock)
#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
#undef RW_WRITE_HELD
#define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock)
extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
extern void rw_destroy(krwlock_t *rwlp); extern void rw_destroy(krwlock_t *rwlp);
@ -270,13 +273,9 @@ extern gid_t *crgetgroups(cred_t *cr);
/* /*
* Condition variables * Condition variables
*/ */
#define CV_MAGIC 0xd31ea9a83b1b30c4ull typedef cond_t kcondvar_t;
typedef struct kcondvar {
uint64_t cv_magic;
pthread_cond_t cv;
} kcondvar_t;
#define CV_DEFAULT 0 #define CV_DEFAULT USYNC_THREAD
extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
extern void cv_destroy(kcondvar_t *cv); extern void cv_destroy(kcondvar_t *cv);
@ -450,8 +449,7 @@ extern void delay(clock_t ticks);
#define minclsyspri 60 #define minclsyspri 60
#define maxclsyspri 99 #define maxclsyspri 99
/* XXX: not portable */ #define CPU_SEQID (thr_self() & (max_ncpus - 1))
#define CPU_SEQID (pthread_self() & (max_ncpus - 1))
#define kcred NULL #define kcred NULL
#define CRED() NULL #define CRED() NULL

168
lib/libzpool/kernel.c
View File

@ -35,7 +35,6 @@
#include <sys/processor.h> #include <sys/processor.h>
#include <sys/zfs_context.h> #include <sys/zfs_context.h>
#include <sys/utsname.h> #include <sys/utsname.h>
#include <sys/time.h>
#include <sys/systeminfo.h> #include <sys/systeminfo.h>
/* /*
@ -57,17 +56,13 @@ struct utsname utsname = {
*/ */
/*ARGSUSED*/ /*ARGSUSED*/
kthread_t * kthread_t *
zk_thread_create(thread_func_t func, void *arg) zk_thread_create(void (*func)(), void *arg)
{ {
pthread_t tid; thread_t tid;
pthread_attr_t attr; VERIFY(thr_create(0, 0, (void *(*)(void *))func, arg, THR_DETACHED,
VERIFY(pthread_attr_init(&attr) == 0); &tid) == 0);
VERIFY(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED) == 0);
VERIFY(pthread_create(&tid, &attr, (void *(*)(void *))func, arg) == 0);
/* XXX: not portable */
return ((void *)(uintptr_t)tid); return ((void *)(uintptr_t)tid);
} }
@ -100,37 +95,30 @@ kstat_delete(kstat_t *ksp)
* ========================================================================= * =========================================================================
*/ */
void void
mutex_init(kmutex_t *mp, char *name, int type, void *cookie) zmutex_init(kmutex_t *mp)
{ {
ASSERT(type == MUTEX_DEFAULT);
ASSERT(cookie == NULL);
#ifdef IM_FEELING_LUCKY
ASSERT(mp->m_magic != MTX_MAGIC);
#endif
mp->m_owner = NULL; mp->m_owner = NULL;
mp->m_magic = MTX_MAGIC; mp->initialized = B_TRUE;
VERIFY3S(pthread_mutex_init(&mp->m_lock, NULL), ==, 0); (void) _mutex_init(&mp->m_lock, USYNC_THREAD, NULL);
} }
void void
mutex_destroy(kmutex_t *mp) zmutex_destroy(kmutex_t *mp)
{ {
ASSERT(mp->m_magic == MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
ASSERT(mp->m_owner == NULL); ASSERT(mp->m_owner == NULL);
VERIFY3S(pthread_mutex_destroy(&(mp)->m_lock), ==, 0); (void) _mutex_destroy(&(mp)->m_lock);
mp->m_owner = (void *)-1UL; mp->m_owner = (void *)-1UL;
mp->m_magic = 0; mp->initialized = B_FALSE;
} }
void void
mutex_enter(kmutex_t *mp) mutex_enter(kmutex_t *mp)
{ {
ASSERT(mp->m_magic == MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
ASSERT(mp->m_owner != (void *)-1UL); ASSERT(mp->m_owner != (void *)-1UL);
ASSERT(mp->m_owner != curthread); ASSERT(mp->m_owner != curthread);
VERIFY3S(pthread_mutex_lock(&mp->m_lock), ==, 0); VERIFY(mutex_lock(&mp->m_lock) == 0);
ASSERT(mp->m_owner == NULL); ASSERT(mp->m_owner == NULL);
mp->m_owner = curthread; mp->m_owner = curthread;
} }
@ -138,9 +126,9 @@ mutex_enter(kmutex_t *mp)
int int
mutex_tryenter(kmutex_t *mp) mutex_tryenter(kmutex_t *mp)
{ {
ASSERT(mp->m_magic == MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
ASSERT(mp->m_owner != (void *)-1UL); ASSERT(mp->m_owner != (void *)-1UL);
if (0 == pthread_mutex_trylock(&mp->m_lock)) { if (0 == mutex_trylock(&mp->m_lock)) {
ASSERT(mp->m_owner == NULL); ASSERT(mp->m_owner == NULL);
mp->m_owner = curthread; mp->m_owner = curthread;
return (1); return (1);
@ -152,16 +140,16 @@ mutex_tryenter(kmutex_t *mp)
void void
mutex_exit(kmutex_t *mp) mutex_exit(kmutex_t *mp)
{ {
ASSERT(mp->m_magic == MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
ASSERT(mutex_owner(mp) == curthread); ASSERT(mutex_owner(mp) == curthread);
mp->m_owner = NULL; mp->m_owner = NULL;
VERIFY3S(pthread_mutex_unlock(&mp->m_lock), ==, 0); VERIFY(mutex_unlock(&mp->m_lock) == 0);
} }
void * void *
mutex_owner(kmutex_t *mp) mutex_owner(kmutex_t *mp)
{ {
ASSERT(mp->m_magic == MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
return (mp->m_owner); return (mp->m_owner);
} }
@ -174,48 +162,31 @@ mutex_owner(kmutex_t *mp)
void void
rw_init(krwlock_t *rwlp, char *name, int type, void *arg) rw_init(krwlock_t *rwlp, char *name, int type, void *arg)
{ {
ASSERT(type == RW_DEFAULT); rwlock_init(&rwlp->rw_lock, USYNC_THREAD, NULL);
ASSERT(arg == NULL);
#ifdef IM_FEELING_LUCKY
ASSERT(rwlp->rw_magic != RW_MAGIC);
#endif
VERIFY3S(pthread_rwlock_init(&rwlp->rw_lock, NULL), ==, 0);
rwlp->rw_owner = NULL; rwlp->rw_owner = NULL;
rwlp->rw_wr_owner = NULL; rwlp->initialized = B_TRUE;
rwlp->rw_readers = 0;
rwlp->rw_magic = RW_MAGIC;
} }
void void
rw_destroy(krwlock_t *rwlp) rw_destroy(krwlock_t *rwlp)
{ {
ASSERT(rwlp->rw_magic == RW_MAGIC); rwlock_destroy(&rwlp->rw_lock);
rwlp->rw_owner = (void *)-1UL;
VERIFY3S(pthread_rwlock_destroy(&rwlp->rw_lock), ==, 0); rwlp->initialized = B_FALSE;
rwlp->rw_magic = 0;
} }
void void
rw_enter(krwlock_t *rwlp, krw_t rw) rw_enter(krwlock_t *rwlp, krw_t rw)
{ {
ASSERT(rwlp->rw_magic == RW_MAGIC); ASSERT(!RW_LOCK_HELD(rwlp));
ASSERT(rwlp->initialized == B_TRUE);
ASSERT(rwlp->rw_owner != (void *)-1UL);
ASSERT(rwlp->rw_owner != curthread); ASSERT(rwlp->rw_owner != curthread);
ASSERT(rwlp->rw_wr_owner != curthread);
if (rw == RW_READER) { if (rw == RW_READER)
VERIFY3S(pthread_rwlock_rdlock(&rwlp->rw_lock), ==, 0); VERIFY(rw_rdlock(&rwlp->rw_lock) == 0);
ASSERT(rwlp->rw_wr_owner == NULL); else
VERIFY(rw_wrlock(&rwlp->rw_lock) == 0);
atomic_inc_uint(&rwlp->rw_readers);
} else {
VERIFY3S(pthread_rwlock_wrlock(&rwlp->rw_lock), ==, 0);
ASSERT(rwlp->rw_wr_owner == NULL);
ASSERT3U(rwlp->rw_readers, ==, 0);
rwlp->rw_wr_owner = curthread;
}
rwlp->rw_owner = curthread; rwlp->rw_owner = curthread;
} }
@ -223,16 +194,11 @@ rw_enter(krwlock_t *rwlp, krw_t rw)
void void
rw_exit(krwlock_t *rwlp) rw_exit(krwlock_t *rwlp)
{ {
ASSERT(rwlp->rw_magic == RW_MAGIC); ASSERT(rwlp->initialized == B_TRUE);
ASSERT(RW_LOCK_HELD(rwlp)); ASSERT(rwlp->rw_owner != (void *)-1UL);
if (RW_READ_HELD(rwlp))
atomic_dec_uint(&rwlp->rw_readers);
else
rwlp->rw_wr_owner = NULL;
rwlp->rw_owner = NULL; rwlp->rw_owner = NULL;
VERIFY3S(pthread_rwlock_unlock(&rwlp->rw_lock), ==, 0); VERIFY(rw_unlock(&rwlp->rw_lock) == 0);
} }
int int
@ -240,29 +206,19 @@ rw_tryenter(krwlock_t *rwlp, krw_t rw)
{ {
int rv; int rv;
ASSERT(rwlp->rw_magic == RW_MAGIC); ASSERT(rwlp->initialized == B_TRUE);
ASSERT(rwlp->rw_owner != (void *)-1UL);
if (rw == RW_READER) if (rw == RW_READER)
rv = pthread_rwlock_tryrdlock(&rwlp->rw_lock); rv = rw_tryrdlock(&rwlp->rw_lock);
else else
rv = pthread_rwlock_trywrlock(&rwlp->rw_lock); rv = rw_trywrlock(&rwlp->rw_lock);
if (rv == 0) { if (rv == 0) {
ASSERT(rwlp->rw_wr_owner == NULL);
if (rw == RW_READER)
atomic_inc_uint(&rwlp->rw_readers);
else {
ASSERT3U(rwlp->rw_readers, ==, 0);
rwlp->rw_wr_owner = curthread;
}
rwlp->rw_owner = curthread; rwlp->rw_owner = curthread;
return (1); return (1);
} }
VERIFY3S(rv, ==, EBUSY);
return (0); return (0);
} }
@ -270,7 +226,8 @@ rw_tryenter(krwlock_t *rwlp, krw_t rw)
int int
rw_tryupgrade(krwlock_t *rwlp) rw_tryupgrade(krwlock_t *rwlp)
{ {
ASSERT(rwlp->rw_magic == RW_MAGIC); ASSERT(rwlp->initialized == B_TRUE);
ASSERT(rwlp->rw_owner != (void *)-1UL);
return (0); return (0);
} }
@ -284,34 +241,22 @@ rw_tryupgrade(krwlock_t *rwlp)
void void
cv_init(kcondvar_t *cv, char *name, int type, void *arg) cv_init(kcondvar_t *cv, char *name, int type, void *arg)
{ {
ASSERT(type == CV_DEFAULT); VERIFY(cond_init(cv, type, NULL) == 0);
#ifdef IM_FEELING_LUCKY
ASSERT(cv->cv_magic != CV_MAGIC);
#endif
cv->cv_magic = CV_MAGIC;
VERIFY3S(pthread_cond_init(&cv->cv, NULL), ==, 0);
} }
void void
cv_destroy(kcondvar_t *cv) cv_destroy(kcondvar_t *cv)
{ {
ASSERT(cv->cv_magic == CV_MAGIC); VERIFY(cond_destroy(cv) == 0);
VERIFY3S(pthread_cond_destroy(&cv->cv), ==, 0);
cv->cv_magic = 0;
} }
void void
cv_wait(kcondvar_t *cv, kmutex_t *mp) cv_wait(kcondvar_t *cv, kmutex_t *mp)
{ {
ASSERT(cv->cv_magic == CV_MAGIC);
ASSERT(mutex_owner(mp) == curthread); ASSERT(mutex_owner(mp) == curthread);
mp->m_owner = NULL; mp->m_owner = NULL;
int ret = pthread_cond_wait(&cv->cv, &mp->m_lock); int ret = cond_wait(cv, &mp->m_lock);
if (ret != 0) VERIFY(ret == 0 || ret == EINTR);
VERIFY3S(ret, ==, EINTR);
mp->m_owner = curthread; mp->m_owner = curthread;
} }
@ -319,38 +264,29 @@ clock_t
cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime) cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime)
{ {
int error; int error;
struct timeval tv;
timestruc_t ts; timestruc_t ts;
clock_t delta; clock_t delta;
ASSERT(cv->cv_magic == CV_MAGIC);
top: top:
delta = abstime - lbolt; delta = abstime - lbolt;
if (delta <= 0) if (delta <= 0)
return (-1); return (-1);
VERIFY(gettimeofday(&tv, NULL) == 0); ts.tv_sec = delta / hz;
ts.tv_nsec = (delta % hz) * (NANOSEC / hz);
ts.tv_sec = tv.tv_sec + delta / hz;
ts.tv_nsec = tv.tv_usec * 1000 + (delta % hz) * (NANOSEC / hz);
if (ts.tv_nsec >= NANOSEC) {
ts.tv_sec++;
ts.tv_nsec -= NANOSEC;
}
ASSERT(mutex_owner(mp) == curthread); ASSERT(mutex_owner(mp) == curthread);
mp->m_owner = NULL; mp->m_owner = NULL;
error = pthread_cond_timedwait(&cv->cv, &mp->m_lock, &ts); error = cond_reltimedwait(cv, &mp->m_lock, &ts);
mp->m_owner = curthread; mp->m_owner = curthread;
if (error == ETIMEDOUT) if (error == ETIME)
return (-1); return (-1);
if (error == EINTR) if (error == EINTR)
goto top; goto top;
VERIFY3S(error, ==, 0); ASSERT(error == 0);
return (1); return (1);
} }
@ -358,15 +294,13 @@ top:
void void
cv_signal(kcondvar_t *cv) cv_signal(kcondvar_t *cv)
{ {
ASSERT(cv->cv_magic == CV_MAGIC); VERIFY(cond_signal(cv) == 0);
VERIFY3S(pthread_cond_signal(&cv->cv), ==, 0);
} }
void void
cv_broadcast(kcondvar_t *cv) cv_broadcast(kcondvar_t *cv)
{ {
ASSERT(cv->cv_magic == CV_MAGIC); VERIFY(cond_broadcast(cv) == 0);
VERIFY3S(pthread_cond_broadcast(&cv->cv), ==, 0);
} }
/* /*
@ -608,7 +542,7 @@ __dprintf(const char *file, const char *func, int line, const char *fmt, ...)
if (dprintf_find_string("pid")) if (dprintf_find_string("pid"))
(void) printf("%d ", getpid()); (void) printf("%d ", getpid());
if (dprintf_find_string("tid")) if (dprintf_find_string("tid"))
(void) printf("%u ", (uint_t) pthread_self()); (void) printf("%u ", thr_self());
if (dprintf_find_string("cpu")) if (dprintf_find_string("cpu"))
(void) printf("%u ", getcpuid()); (void) printf("%u ", getcpuid());
if (dprintf_find_string("time")) if (dprintf_find_string("time"))

14
lib/libzpool/taskq.c
View File

@ -42,7 +42,7 @@ struct taskq {
krwlock_t tq_threadlock; krwlock_t tq_threadlock;
kcondvar_t tq_dispatch_cv; kcondvar_t tq_dispatch_cv;
kcondvar_t tq_wait_cv; kcondvar_t tq_wait_cv;
pthread_t *tq_threadlist; thread_t *tq_threadlist;
int tq_flags; int tq_flags;
int tq_active; int tq_active;
int tq_nthreads; int tq_nthreads;
@ -185,7 +185,7 @@ taskq_create(const char *name, int nthreads, pri_t pri,
tq->tq_maxalloc = maxalloc; tq->tq_maxalloc = maxalloc;
tq->tq_task.task_next = &tq->tq_task; tq->tq_task.task_next = &tq->tq_task;
tq->tq_task.task_prev = &tq->tq_task; tq->tq_task.task_prev = &tq->tq_task;
tq->tq_threadlist = kmem_alloc(nthreads * sizeof (pthread_t), KM_SLEEP); tq->tq_threadlist = kmem_alloc(nthreads * sizeof (thread_t), KM_SLEEP);
if (flags & TASKQ_PREPOPULATE) { if (flags & TASKQ_PREPOPULATE) {
mutex_enter(&tq->tq_lock); mutex_enter(&tq->tq_lock);
@ -195,8 +195,8 @@ taskq_create(const char *name, int nthreads, pri_t pri,
} }
for (t = 0; t < nthreads; t++) for (t = 0; t < nthreads; t++)
VERIFY(pthread_create(&tq->tq_threadlist[t], (void) thr_create(0, 0, taskq_thread,
NULL, taskq_thread, tq) == 0); tq, THR_BOUND, &tq->tq_threadlist[t]);
return (tq); return (tq);
} }
@ -226,9 +226,9 @@ taskq_destroy(taskq_t *tq)
mutex_exit(&tq->tq_lock); mutex_exit(&tq->tq_lock);
for (t = 0; t < nthreads; t++) for (t = 0; t < nthreads; t++)
VERIFY(pthread_join(tq->tq_threadlist[t], NULL) == 0); (void) thr_join(tq->tq_threadlist[t], NULL, NULL);
kmem_free(tq->tq_threadlist, nthreads * sizeof (pthread_t)); kmem_free(tq->tq_threadlist, nthreads * sizeof (thread_t));
rw_destroy(&tq->tq_threadlock); rw_destroy(&tq->tq_threadlock);
mutex_destroy(&tq->tq_lock); mutex_destroy(&tq->tq_lock);
@ -247,7 +247,7 @@ taskq_member(taskq_t *tq, void *t)
return (1); return (1);
for (i = 0; i < tq->tq_nthreads; i++) for (i = 0; i < tq->tq_nthreads; i++)
if (tq->tq_threadlist[i] == (pthread_t)(uintptr_t)t) if (tq->tq_threadlist[i] == (thread_t)(uintptr_t)t)
return (1); return (1);
return (0); return (0);