The pthreads change will need to be reworked and reapplied.
This will be easier to do from scratch rather than sort out
the merge.
#include <sys/zfs_fuid.h>
#include <sys/arc.h>
#undef ZFS_MAXNAMELEN
+#undef verify
#include <libzfs.h>
const char cmdname[] = "zdb";
#include <libzfs.h>
+#undef verify /* both libzfs.h and zfs_context.h want to define this */
+
#include <sys/zfs_context.h>
#include <errno.h>
spa_t *za_spa;
objset_t *za_os;
zilog_t *za_zilog;
- kthread_t *za_thread;
- kt_did_t za_threadid;
+ thread_t za_thread;
uint64_t za_instance;
uint64_t za_random;
uint64_t za_diroff;
* The callbacks are ordered by txg number.
*/
typedef struct ztest_cb_list {
- kmutex_t zcl_callbacks_lock;
- list_t zcl_callbacks;
+ mutex_t zcl_callbacks_lock;
+ list_t zcl_callbacks;
} ztest_cb_list_t;
/*
* Stuff we need to share writably between parent and child.
*/
typedef struct ztest_shared {
- kmutex_t zs_vdev_lock;
- krwlock_t zs_name_lock;
- uint64_t zs_vdev_primaries;
- uint64_t zs_vdev_aux;
- uint64_t zs_enospc_count;
- hrtime_t zs_start_time;
- hrtime_t zs_stop_time;
- uint64_t zs_alloc;
- uint64_t zs_space;
- ztest_info_t zs_info[ZTEST_FUNCS];
- kmutex_t zs_sync_lock[ZTEST_SYNC_LOCKS];
- uint64_t zs_seq[ZTEST_SYNC_LOCKS];
- ztest_cb_list_t zs_cb_list;
+ mutex_t zs_vdev_lock;
+ rwlock_t zs_name_lock;
+ uint64_t zs_vdev_primaries;
+ uint64_t zs_vdev_aux;
+ uint64_t zs_enospc_count;
+ hrtime_t zs_start_time;
+ hrtime_t zs_stop_time;
+ uint64_t zs_alloc;
+ uint64_t zs_space;
+ ztest_info_t zs_info[ZTEST_FUNCS];
+ mutex_t zs_sync_lock[ZTEST_SYNC_LOCKS];
+ uint64_t zs_seq[ZTEST_SYNC_LOCKS];
+ ztest_cb_list_t zs_cb_list;
} ztest_shared_t;
static char ztest_dev_template[] = "%s/%s.%llua";
* Attempt to create an existing pool. It shouldn't matter
* what's in the nvroot; we should fail with EEXIST.
*/
- rw_enter(&ztest_shared->zs_name_lock, RW_READER);
+ (void) rw_rdlock(&ztest_shared->zs_name_lock);
nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
error = spa_create(za->za_pool, nvroot, NULL, NULL, NULL);
nvlist_free(nvroot);
fatal(0, "spa_destroy() = %d", error);
spa_close(spa, FTAG);
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
}
static vdev_t *
nvlist_t *nvroot;
int error;
- mutex_enter(&ztest_shared->zs_vdev_lock);
+ (void) mutex_lock(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
error = spa_vdev_add(spa, nvroot);
nvlist_free(nvroot);
- mutex_exit(&ztest_shared->zs_vdev_lock);
+ (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
if (error == ENOSPC)
ztest_record_enospc("spa_vdev_add");
aux = ZPOOL_CONFIG_L2CACHE;
}
- mutex_enter(&ztest_shared->zs_vdev_lock);
+ (void) mutex_lock(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
fatal(0, "spa_vdev_remove(%llu) = %d", guid, error);
}
- mutex_exit(&ztest_shared->zs_vdev_lock);
+ (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
}
/*
int oldvd_is_log;
int error, expected_error;
- mutex_enter(&ztest_shared->zs_vdev_lock);
+ (void) mutex_lock(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
if (error != 0 && error != ENODEV && error != EBUSY &&
error != ENOTSUP)
fatal(0, "detach (%s) returned %d", oldpath, error);
- mutex_exit(&ztest_shared->zs_vdev_lock);
+ (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
return;
}
(longlong_t)newsize, replacing, error, expected_error);
}
- mutex_exit(&ztest_shared->zs_vdev_lock);
+ (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
}
/*
size_t psize, newsize;
uint64_t spa_newsize, spa_cursize, ms_count;
- mutex_enter(&ztest_shared->zs_vdev_lock);
+ (void) mutex_lock(&ztest_shared->zs_vdev_lock);
mutex_enter(&spa_namespace_lock);
spa_config_enter(spa, SCL_STATE, spa, RW_READER);
if (psize == 0 || psize >= 4 * zopt_vdev_size) {
spa_config_exit(spa, SCL_STATE, spa);
mutex_exit(&spa_namespace_lock);
- mutex_exit(&ztest_shared->zs_vdev_lock);
+ (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
return;
}
ASSERT(psize > 0);
}
(void) spa_config_exit(spa, SCL_STATE, spa);
mutex_exit(&spa_namespace_lock);
- mutex_exit(&ztest_shared->zs_vdev_lock);
+ (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
return;
}
spa->spa_name, oldnumbuf, newnumbuf);
}
spa_config_exit(spa, SCL_STATE, spa);
- mutex_exit(&ztest_shared->zs_vdev_lock);
+ (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
}
/* ARGSUSED */
uint64_t seq;
uint64_t objects;
- rw_enter(&ztest_shared->zs_name_lock, RW_READER);
+ (void) rw_rdlock(&ztest_shared->zs_name_lock);
(void) snprintf(name, 100, "%s/%s_temp_%llu", za->za_pool, za->za_pool,
(u_longlong_t)za->za_instance);
if (error) {
if (error == ENOSPC) {
ztest_record_enospc("dmu_objset_create");
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
return;
}
fatal(0, "dmu_objset_create(%s) = %d", name, error);
if (error)
fatal(0, "dmu_objset_destroy(%s) = %d", name, error);
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
}
/*
char snapname[100];
char osname[MAXNAMELEN];
- rw_enter(&ztest_shared->zs_name_lock, RW_READER);
+ (void) rw_rdlock(&ztest_shared->zs_name_lock);
dmu_objset_name(os, osname);
(void) snprintf(snapname, 100, "%s@%llu", osname,
(u_longlong_t)za->za_instance);
ztest_record_enospc("dmu_take_snapshot");
else if (error != 0 && error != EEXIST)
fatal(0, "dmu_take_snapshot() = %d", error);
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
}
/*
char osname[MAXNAMELEN];
uint64_t curval = za->za_instance;
- rw_enter(&ztest_shared->zs_name_lock, RW_READER);
+ (void) rw_rdlock(&ztest_shared->zs_name_lock);
dmu_objset_name(os, osname);
ztest_dsl_dataset_cleanup(osname, curval);
out:
ztest_dsl_dataset_cleanup(osname, curval);
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
}
/*
int bs = ZTEST_DIROBJ_BLOCKSIZE;
int do_free = 0;
uint64_t off, txg, txg_how;
- kmutex_t *lp;
+ mutex_t *lp;
char osname[MAXNAMELEN];
char iobuf[SPA_MAXBLOCKSIZE];
blkptr_t blk = { 0 };
txg = dmu_tx_get_txg(tx);
lp = &ztest_shared->zs_sync_lock[b];
- mutex_enter(lp);
+ (void) mutex_lock(lp);
wbt->bt_objset = dmu_objset_id(os);
wbt->bt_object = ZTEST_DIROBJ;
dmu_buf_rele(bonus_db, FTAG);
}
- mutex_exit(lp);
+ (void) mutex_unlock(lp);
if (ztest_random(1000) == 0)
(void) poll(NULL, 0, 1); /* open dn_notxholds window */
/*
* dmu_sync() the block we just wrote.
*/
- mutex_enter(lp);
+ (void) mutex_lock(lp);
blkoff = P2ALIGN_TYPED(off, bs, uint64_t);
error = dmu_buf_hold(os, ZTEST_DIROBJ, blkoff, FTAG, &db);
za->za_dbuf = db;
if (error) {
- mutex_exit(lp);
+ (void) mutex_unlock(lp);
return;
}
blkoff = off - blkoff;
za->za_dbuf = NULL;
if (error) {
- mutex_exit(lp);
+ (void) mutex_unlock(lp);
return;
}
if (blk.blk_birth == 0) { /* concurrent free */
- mutex_exit(lp);
+ (void) mutex_unlock(lp);
return;
}
txg_suspend(dmu_objset_pool(os));
- mutex_exit(lp);
+ (void) mutex_unlock(lp);
ASSERT(blk.blk_fill == 1);
ASSERT3U(BP_GET_TYPE(&blk), ==, DMU_OT_UINT64_OTHER);
ASSERT3U(data->zcd_txg, !=, 0);
/* Remove our callback from the list */
- mutex_enter(&zcl->zcl_callbacks_lock);
+ (void) mutex_lock(&zcl->zcl_callbacks_lock);
list_remove(&zcl->zcl_callbacks, data);
- mutex_exit(&zcl->zcl_callbacks_lock);
+ (void) mutex_unlock(&zcl->zcl_callbacks_lock);
out:
umem_free(data, sizeof (ztest_cb_data_t));
dmu_write(os, ZTEST_DIROBJ, za->za_diroff, sizeof (uint64_t), &txg, tx);
- mutex_enter(&zcl->zcl_callbacks_lock);
+ (void) mutex_lock(&zcl->zcl_callbacks_lock);
/*
* Since commit callbacks don't have any ordering requirement and since
tmp_cb = cb_data[i];
}
- mutex_exit(&zcl->zcl_callbacks_lock);
+ (void) mutex_unlock(&zcl->zcl_callbacks_lock);
dmu_tx_commit(tx);
}
char osname[MAXNAMELEN];
int error;
- rw_enter(&ztest_shared->zs_name_lock, RW_READER);
+ (void) rw_rdlock(&ztest_shared->zs_name_lock);
dmu_objset_name(os, osname);
}
}
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
}
/*
int error;
spa_t *spa;
- rw_enter(&ztest_shared->zs_name_lock, RW_WRITER);
+ (void) rw_wrlock(&ztest_shared->zs_name_lock);
oldname = za->za_pool;
newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
umem_free(newname, strlen(newname) + 1);
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
}
(void) poll(NULL, 0, 1000);
ztest_resume(spa);
}
-
- thread_exit();
return (NULL);
}
break;
}
- thread_exit();
return (NULL);
}
ztest_args_t *za;
spa_t *spa;
char name[100];
- kthread_t *resume_thread;
- kt_did_t resume_id;
+ thread_t resume_tid;
ztest_exiting = B_FALSE;
- mutex_init(&zs->zs_vdev_lock, NULL, MUTEX_DEFAULT, NULL);
- rw_init(&zs->zs_name_lock, NULL, RW_DEFAULT, NULL);
- mutex_init(&zs->zs_cb_list.zcl_callbacks_lock,NULL,MUTEX_DEFAULT,NULL);
+ (void) _mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL);
+ (void) rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL);
+ (void) _mutex_init(&zs->zs_cb_list.zcl_callbacks_lock, USYNC_THREAD,
+ NULL);
list_create(&zs->zs_cb_list.zcl_callbacks, sizeof (ztest_cb_data_t),
offsetof(ztest_cb_data_t, zcd_node));
for (t = 0; t < ZTEST_SYNC_LOCKS; t++)
- mutex_init(&zs->zs_sync_lock[t], NULL, MUTEX_DEFAULT, NULL);
+ (void) _mutex_init(&zs->zs_sync_lock[t], USYNC_THREAD, NULL);
/*
* Destroy one disk before we even start.
/*
* Create a thread to periodically resume suspended I/O.
*/
- VERIFY3P((resume_thread = thread_create(NULL, 0, ztest_resume_thread,
- spa, THR_BOUND, NULL, 0, 0)), !=, NULL);
- resume_id = resume_thread->t_tid;
+ VERIFY(thr_create(0, 0, ztest_resume_thread, spa, THR_BOUND,
+ &resume_tid) == 0);
/*
* Verify that we can safely inquire about about any object,
if (t < zopt_datasets) {
int test_future = FALSE;
- rw_enter(&ztest_shared->zs_name_lock, RW_READER);
+ (void) rw_rdlock(&ztest_shared->zs_name_lock);
(void) snprintf(name, 100, "%s/%s_%d", pool, pool, d);
error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0,
ztest_create_cb, NULL);
test_future = TRUE;
} else if (error == ENOSPC) {
zs->zs_enospc_count++;
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
break;
} else if (error != 0) {
fatal(0, "dmu_objset_create(%s) = %d",
if (error)
fatal(0, "dmu_objset_open('%s') = %d",
name, error);
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
if (test_future)
ztest_dmu_check_future_leak(&za[t]);
zil_replay(za[d].za_os, za[d].za_os,
za[d].za_zilog = zil_open(za[d].za_os, NULL);
}
- VERIFY3P((za[t].za_thread = thread_create(NULL, 0, ztest_thread,
- &za[t], THR_BOUND, NULL, 0, 0)), !=, NULL);
- za[t].za_threadid = za[t].za_thread->t_tid;
+ VERIFY(thr_create(0, 0, ztest_thread, &za[t], THR_BOUND,
+ &za[t].za_thread) == 0);
}
while (--t >= 0) {
- VERIFY(thread_join(za[t].za_threadid, NULL, NULL) == 0);
+ VERIFY(thr_join(za[t].za_thread, NULL, NULL) == 0);
if (t < zopt_datasets) {
zil_close(za[t].za_zilog);
dmu_objset_close(za[t].za_os);
* If we had out-of-space errors, destroy a random objset.
*/
if (zs->zs_enospc_count != 0) {
- rw_enter(&ztest_shared->zs_name_lock, RW_READER);
+ (void) rw_rdlock(&ztest_shared->zs_name_lock);
d = (int)ztest_random(zopt_datasets);
(void) snprintf(name, 100, "%s/%s_%d", pool, pool, d);
if (zopt_verbose >= 3)
(void) dmu_objset_find(name, ztest_destroy_cb, &za[d],
DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
- rw_exit(&ztest_shared->zs_name_lock);
+ (void) rw_unlock(&ztest_shared->zs_name_lock);
}
txg_wait_synced(spa_get_dsl(spa), 0);
/* Kill the resume thread */
ztest_exiting = B_TRUE;
- VERIFY(thread_join(resume_id, NULL, NULL) == 0);
+ VERIFY(thr_join(resume_tid, NULL, NULL) == 0);
ztest_resume(spa);
/*
list_destroy(&zs->zs_cb_list.zcl_callbacks);
- mutex_destroy(&zs->zs_cb_list.zcl_callbacks_lock);
- rw_destroy(&zs->zs_name_lock);
- mutex_destroy(&zs->zs_vdev_lock);
+ (void) _mutex_destroy(&zs->zs_cb_list.zcl_callbacks_lock);
+ (void) rwlock_destroy(&zs->zs_name_lock);
+ (void) _mutex_destroy(&zs->zs_vdev_lock);
}
void
#include <stdlib.h>
#include <string.h>
#include <sys/debug.h>
+#include <thread.h>
#include <unistd.h>
#if !defined(TEXT_DOMAIN)
static pthread_t uu_panic_thread;
static uint32_t _uu_main_error;
-static __thread int _uu_main_thread = 0;
void
uu_set_error(uint_t code)
{
- if (_uu_main_thread) {
+ if (thr_main() != 0) {
_uu_main_error = code;
return;
}
uint32_t
uu_error(void)
{
- if (_uu_main_thread)
+ if (thr_main() != 0)
return (_uu_main_error);
if (uu_error_key_setup < 0) /* can't happen? */
static void
uu_init(void)
{
- _uu_main_thread = 1;
(void) pthread_atfork(uu_lockup, uu_release, uu_release_child);
}
#include <errno.h>
#include <string.h>
#include <strings.h>
-#include <pthread.h>
+#include <synch.h>
+#include <thread.h>
#include <assert.h>
#include <alloca.h>
#include <umem.h>
#define fm_panic panic
/* This definition is copied from assert.h. */
-#ifndef verify
#if defined(__STDC__)
#if __STDC_VERSION__ - 0 >= 199901L
#define verify(EX) (void)((EX) || \
#else
#define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0))
#endif /* __STDC__ */
-#endif
-#undef VERIFY
-#undef ASSERT
#define VERIFY verify
#define ASSERT assert
/*
* Threads
*/
-#define THR_BOUND 0x00000001
-#define TS_RUN 0x00000002
-
-typedef void (*thread_func_t)(void *);
-typedef pthread_t kt_did_t;
-
-typedef struct kthread {
- list_node_t t_node;
- kt_did_t t_tid;
- pthread_attr_t t_attr;
-} kthread_t;
-
-#define tsd_get(key) pthread_getspecific(key)
-#define tsd_set(key, val) pthread_setspecific(key, val)
-#define curthread zk_thread_current()
-#define thread_exit zk_thread_exit
-#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
- zk_thread_create(stk, stksize, (thread_func_t)func, arg, \
- len, NULL, state, pri)
-#define thread_join(tid, dtid, status) \
- zk_thread_join(tid, dtid, status)
-
-extern kthread_t *zk_thread_current(void);
-extern void zk_thread_exit(void);
-extern kthread_t *zk_thread_create(caddr_t stk, size_t stksize,
- thread_func_t func, void *arg, size_t len,
- void *pp, int state, pri_t pri);
-extern int zk_thread_join(kt_did_t tid, kthread_t *dtid, void **status);
+#define curthread ((void *)(uintptr_t)thr_self())
+
+typedef struct kthread kthread_t;
+
+#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
+ zk_thread_create(func, arg)
+#define thread_exit() thr_exit(NULL)
+
+extern kthread_t *zk_thread_create(void (*func)(), void *arg);
#define issig(why) (FALSE)
#define ISSIG(thr, why) (FALSE)
/*
* Mutexes
*/
-#define MTX_MAGIC 0x9522f51362a6e326ull
-#define MTX_INIT (void *)NULL
-#define MTX_DEST (void *)-1UL
typedef struct kmutex {
void *m_owner;
- uint64_t m_magic;
- pthread_mutex_t m_lock;
+ boolean_t initialized;
+ mutex_t m_lock;
} kmutex_t;
-#define MUTEX_DEFAULT 0
-#define MUTEX_HELD(m) ((m)->m_owner == curthread)
+#define MUTEX_DEFAULT USYNC_THREAD
+#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_exit(kmutex_t *mp);
extern int mutex_tryenter(kmutex_t *mp);
/*
* RW locks
*/
-#define RW_MAGIC 0x4d31fb123648e78aull
-#define RW_INIT (void *)NULL
-#define RW_DEST (void *)-1UL
typedef struct krwlock {
- void *rw_owner;
- void *rw_wr_owner;
- uint64_t rw_magic;
- pthread_rwlock_t rw_lock;
- uint_t rw_readers;
+ void *rw_owner;
+ boolean_t initialized;
+ rwlock_t rw_lock;
} krwlock_t;
typedef int krw_t;
#define RW_READER 0
#define RW_WRITER 1
-#define RW_DEFAULT 0
+#define RW_DEFAULT USYNC_THREAD
+
+#undef RW_READ_HELD
+#define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock)
-#define RW_READ_HELD(x) ((x)->rw_readers > 0)
-#define RW_WRITE_HELD(x) ((x)->rw_wr_owner == curthread)
-#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_destroy(krwlock_t *rwlp);
/*
* Condition variables
*/
-#define CV_MAGIC 0xd31ea9a83b1b30c4ull
-typedef struct kcondvar {
- uint64_t cv_magic;
- pthread_cond_t cv;
-} kcondvar_t;
+typedef cond_t 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_destroy(kcondvar_t *cv);
extern void taskq_wait(taskq_t *);
extern int taskq_member(taskq_t *, void *);
extern void system_taskq_init(void);
-extern void system_taskq_fini(void);
#define XVA_MAPSIZE 3
#define XVA_MAGIC 0x78766174
#define minclsyspri 60
#define maxclsyspri 99
-/* XXX: not portable */
-#define CPU_SEQID (pthread_self() & (max_ncpus - 1))
+#define CPU_SEQID (thr_self() & (max_ncpus - 1))
#define kcred NULL
#define CRED() NULL
#include <stdlib.h>
#include <string.h>
#include <zlib.h>
-#include <sys/signal.h>
#include <sys/spa.h>
#include <sys/stat.h>
#include <sys/processor.h>
#include <sys/zfs_context.h>
#include <sys/zmod.h>
#include <sys/utsname.h>
-#include <sys/time.h>
#include <sys/systeminfo.h>
/*
* threads
* =========================================================================
*/
-
-/* NOTE: Tracking each tid on a list and using it for curthread lookups
- * is slow at best but it provides an easy way to provide a kthread
- * style API on top of pthreads. For now we just want ztest to work
- * to validate correctness. Performance is not much of an issue
- * since that is what the in-kernel version is for. That said
- * reworking this to track the kthread_t structure as thread
- * specific data would be probably the best way to speed this up.
- */
-
-pthread_cond_t kthread_cond = PTHREAD_COND_INITIALIZER;
-pthread_mutex_t kthread_lock = PTHREAD_MUTEX_INITIALIZER;
-list_t kthread_list;
-
-static int
-thread_count(void)
-{
- kthread_t *kt;
- int count = 0;
-
- for (kt = list_head(&kthread_list); kt != NULL;
- kt = list_next(&kthread_list, kt))
- count++;
-
- return count;
-}
-
-static void
-thread_init(void)
-{
- kthread_t *kt;
-
- /* Initialize list for tracking kthreads */
- list_create(&kthread_list, sizeof (kthread_t),
- offsetof(kthread_t, t_node));
-
- /* Create entry for primary kthread */
- kt = umem_zalloc(sizeof(kthread_t), UMEM_NOFAIL);
- list_link_init(&kt->t_node);
- VERIFY3U(kt->t_tid = pthread_self(), !=, 0);
- VERIFY3S(pthread_attr_init(&kt->t_attr), ==, 0);
- VERIFY3S(pthread_mutex_lock(&kthread_lock), ==, 0);
- list_insert_head(&kthread_list, kt);
- VERIFY3S(pthread_mutex_unlock(&kthread_lock), ==, 0);
-}
-
-static void
-thread_fini(void)
-{
- kthread_t *kt;
- struct timespec ts = { 0 };
- int count;
-
- /* Wait for all threads to exit via thread_exit() */
- VERIFY3S(pthread_mutex_lock(&kthread_lock), ==, 0);
- while ((count = thread_count()) > 1) {
- clock_gettime(CLOCK_REALTIME, &ts);
- ts.tv_sec += 1;
- pthread_cond_timedwait(&kthread_cond, &kthread_lock, &ts);
- }
-
- ASSERT3S(thread_count(), ==, 1);
- kt = list_head(&kthread_list);
- list_remove(&kthread_list, kt);
- VERIFY3S(pthread_mutex_unlock(&kthread_lock), ==, 0);
-
- VERIFY(pthread_attr_destroy(&kt->t_attr) == 0);
- umem_free(kt, sizeof(kthread_t));
-
- /* Cleanup list for tracking kthreads */
- list_destroy(&kthread_list);
-}
-
-kthread_t *
-zk_thread_current(void)
-{
- kt_did_t tid = pthread_self();
- kthread_t *kt;
- int count = 1;
-
- /*
- * Because a newly created thread may call zk_thread_current()
- * before the thread parent has had time to add the thread's tid
- * to our lookup list. We will loop as long as there are tid
- * which have not yet been set which must be one of ours.
- * Yes it's a hack, at some point we can just use native pthreads.
- */
- while (count > 0) {
- count = 0;
- VERIFY3S(pthread_mutex_lock(&kthread_lock), ==, 0);
- for (kt = list_head(&kthread_list); kt != NULL;
- kt = list_next(&kthread_list, kt)) {
-
- if (kt->t_tid == tid) {
- VERIFY3S(pthread_mutex_unlock(
- &kthread_lock), ==, 0);
- return kt;
- }
-
- if (kt->t_tid == (kt_did_t)-1)
- count++;
- }
- VERIFY3S(pthread_mutex_unlock(&kthread_lock), ==, 0);
- }
-
- /* Unreachable */
- ASSERT(0);
- return NULL;
-}
-
+/*ARGSUSED*/
kthread_t *
-zk_thread_create(caddr_t stk, size_t stksize, thread_func_t func, void *arg,
- size_t len, void *pp, int state, pri_t pri)
+zk_thread_create(void (*func)(), void *arg)
{
- kthread_t *kt;
-
- kt = umem_zalloc(sizeof(kthread_t), UMEM_NOFAIL);
- kt->t_tid = (kt_did_t)-1;
- list_link_init(&kt->t_node);
- VERIFY(pthread_attr_init(&kt->t_attr) == 0);
+ thread_t tid;
- VERIFY3S(pthread_mutex_lock(&kthread_lock), ==, 0);
- list_insert_head(&kthread_list, kt);
- VERIFY3S(pthread_mutex_unlock(&kthread_lock), ==, 0);
+ VERIFY(thr_create(0, 0, (void *(*)(void *))func, arg, THR_DETACHED,
+ &tid) == 0);
- VERIFY3U(pthread_create(&kt->t_tid, &kt->t_attr,
- (void *(*)(void *))func, arg), ==, 0);
-
- return kt;
-}
-
-int
-zk_thread_join(kt_did_t tid, kthread_t *dtid, void **status)
-{
- return pthread_join(tid, status);
-}
-
-void
-zk_thread_exit(void)
-{
- kthread_t *kt;
-
- VERIFY3P(kt = curthread, !=, NULL);
- VERIFY3S(pthread_mutex_lock(&kthread_lock), ==, 0);
- list_remove(&kthread_list, kt);
- VERIFY3S(pthread_mutex_unlock(&kthread_lock), ==, 0);
-
- VERIFY(pthread_attr_destroy(&kt->t_attr) == 0);
- umem_free(kt, sizeof(kthread_t));
-
- pthread_cond_broadcast(&kthread_cond);
- pthread_exit(NULL);
+ return ((void *)(uintptr_t)tid);
}
/*
* =========================================================================
*/
void
-mutex_init(kmutex_t *mp, char *name, int type, void *cookie)
+zmutex_init(kmutex_t *mp)
{
- ASSERT3S(type, ==, MUTEX_DEFAULT);
- ASSERT3P(cookie, ==, NULL);
-
-#ifdef IM_FEELING_LUCKY
- ASSERT3U(mp->m_magic, !=, MTX_MAGIC);
-#endif
-
- mp->m_owner = MTX_INIT;
- mp->m_magic = MTX_MAGIC;
- VERIFY3S(pthread_mutex_init(&mp->m_lock, NULL), ==, 0);
+ mp->m_owner = NULL;
+ mp->initialized = B_TRUE;
+ (void) _mutex_init(&mp->m_lock, USYNC_THREAD, NULL);
}
void
-mutex_destroy(kmutex_t *mp)
+zmutex_destroy(kmutex_t *mp)
{
- ASSERT3U(mp->m_magic, ==, MTX_MAGIC);
- ASSERT3P(mp->m_owner, ==, MTX_INIT);
- VERIFY3S(pthread_mutex_destroy(&(mp)->m_lock), ==, 0);
- mp->m_owner = MTX_DEST;
- mp->m_magic = 0;
+ ASSERT(mp->initialized == B_TRUE);
+ ASSERT(mp->m_owner == NULL);
+ (void) _mutex_destroy(&(mp)->m_lock);
+ mp->m_owner = (void *)-1UL;
+ mp->initialized = B_FALSE;
}
void
mutex_enter(kmutex_t *mp)
{
- ASSERT3U(mp->m_magic, ==, MTX_MAGIC);
- ASSERT3P(mp->m_owner, !=, MTX_DEST);
- ASSERT3P(mp->m_owner, !=, curthread);
- VERIFY3S(pthread_mutex_lock(&mp->m_lock), ==, 0);
- ASSERT3P(mp->m_owner, ==, MTX_INIT);
+ ASSERT(mp->initialized == B_TRUE);
+ ASSERT(mp->m_owner != (void *)-1UL);
+ ASSERT(mp->m_owner != curthread);
+ VERIFY(mutex_lock(&mp->m_lock) == 0);
+ ASSERT(mp->m_owner == NULL);
mp->m_owner = curthread;
}
int
mutex_tryenter(kmutex_t *mp)
{
- ASSERT3U(mp->m_magic, ==, MTX_MAGIC);
- ASSERT3P(mp->m_owner, !=, MTX_DEST);
- if (0 == pthread_mutex_trylock(&mp->m_lock)) {
- ASSERT3P(mp->m_owner, ==, MTX_INIT);
+ ASSERT(mp->initialized == B_TRUE);
+ ASSERT(mp->m_owner != (void *)-1UL);
+ if (0 == mutex_trylock(&mp->m_lock)) {
+ ASSERT(mp->m_owner == NULL);
mp->m_owner = curthread;
return (1);
} else {
void
mutex_exit(kmutex_t *mp)
{
- ASSERT3U(mp->m_magic, ==, MTX_MAGIC);
- ASSERT3P(mutex_owner(mp), ==, curthread);
- mp->m_owner = MTX_INIT;
- VERIFY3S(pthread_mutex_unlock(&mp->m_lock), ==, 0);
+ ASSERT(mp->initialized == B_TRUE);
+ ASSERT(mutex_owner(mp) == curthread);
+ mp->m_owner = NULL;
+ VERIFY(mutex_unlock(&mp->m_lock) == 0);
}
void *
mutex_owner(kmutex_t *mp)
{
- ASSERT3U(mp->m_magic, ==, MTX_MAGIC);
+ ASSERT(mp->initialized == B_TRUE);
return (mp->m_owner);
}
void
rw_init(krwlock_t *rwlp, char *name, int type, void *arg)
{
- ASSERT3S(type, ==, RW_DEFAULT);
- ASSERT3P(arg, ==, NULL);
-
-#ifdef IM_FEELING_LUCKY
- ASSERT3U(rwlp->rw_magic, !=, RW_MAGIC);
-#endif
-
- VERIFY3S(pthread_rwlock_init(&rwlp->rw_lock, NULL), ==, 0);
- rwlp->rw_owner = RW_INIT;
- rwlp->rw_wr_owner = RW_INIT;
- rwlp->rw_readers = 0;
- rwlp->rw_magic = RW_MAGIC;
+ rwlock_init(&rwlp->rw_lock, USYNC_THREAD, NULL);
+ rwlp->rw_owner = NULL;
+ rwlp->initialized = B_TRUE;
}
void
rw_destroy(krwlock_t *rwlp)
{
- ASSERT3U(rwlp->rw_magic, ==, RW_MAGIC);
-
- VERIFY3S(pthread_rwlock_destroy(&rwlp->rw_lock), ==, 0);
- rwlp->rw_magic = 0;
+ rwlock_destroy(&rwlp->rw_lock);
+ rwlp->rw_owner = (void *)-1UL;
+ rwlp->initialized = B_FALSE;
}
void
rw_enter(krwlock_t *rwlp, krw_t rw)
{
- ASSERT3U(rwlp->rw_magic, ==, RW_MAGIC);
- ASSERT3P(rwlp->rw_owner, !=, curthread);
- ASSERT3P(rwlp->rw_wr_owner, !=, curthread);
-
- if (rw == RW_READER) {
- VERIFY3S(pthread_rwlock_rdlock(&rwlp->rw_lock), ==, 0);
- ASSERT3P(rwlp->rw_wr_owner, ==, RW_INIT);
-
- atomic_inc_uint(&rwlp->rw_readers);
- } else {
- VERIFY3S(pthread_rwlock_wrlock(&rwlp->rw_lock), ==, 0);
- ASSERT3P(rwlp->rw_wr_owner, ==, RW_INIT);
- ASSERT3U(rwlp->rw_readers, ==, 0);
+ ASSERT(!RW_LOCK_HELD(rwlp));
+ ASSERT(rwlp->initialized == B_TRUE);
+ ASSERT(rwlp->rw_owner != (void *)-1UL);
+ ASSERT(rwlp->rw_owner != curthread);
- rwlp->rw_wr_owner = curthread;
- }
+ if (rw == RW_READER)
+ VERIFY(rw_rdlock(&rwlp->rw_lock) == 0);
+ else
+ VERIFY(rw_wrlock(&rwlp->rw_lock) == 0);
rwlp->rw_owner = curthread;
}
void
rw_exit(krwlock_t *rwlp)
{
- ASSERT3U(rwlp->rw_magic, ==, RW_MAGIC);
- ASSERT(RW_LOCK_HELD(rwlp));
-
- if (RW_READ_HELD(rwlp))
- atomic_dec_uint(&rwlp->rw_readers);
- else
- rwlp->rw_wr_owner = RW_INIT;
+ ASSERT(rwlp->initialized == B_TRUE);
+ ASSERT(rwlp->rw_owner != (void *)-1UL);
- rwlp->rw_owner = RW_INIT;
- VERIFY3S(pthread_rwlock_unlock(&rwlp->rw_lock), ==, 0);
+ rwlp->rw_owner = NULL;
+ VERIFY(rw_unlock(&rwlp->rw_lock) == 0);
}
int
{
int rv;
- ASSERT3U(rwlp->rw_magic, ==, RW_MAGIC);
+ ASSERT(rwlp->initialized == B_TRUE);
+ ASSERT(rwlp->rw_owner != (void *)-1UL);
if (rw == RW_READER)
- rv = pthread_rwlock_tryrdlock(&rwlp->rw_lock);
+ rv = rw_tryrdlock(&rwlp->rw_lock);
else
- rv = pthread_rwlock_trywrlock(&rwlp->rw_lock);
+ rv = rw_trywrlock(&rwlp->rw_lock);
if (rv == 0) {
- ASSERT3P(rwlp->rw_wr_owner, ==, RW_INIT);
-
- 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;
return (1);
}
- VERIFY3S(rv, ==, EBUSY);
-
return (0);
}
int
rw_tryupgrade(krwlock_t *rwlp)
{
- ASSERT3U(rwlp->rw_magic, ==, RW_MAGIC);
+ ASSERT(rwlp->initialized == B_TRUE);
+ ASSERT(rwlp->rw_owner != (void *)-1UL);
return (0);
}
void
cv_init(kcondvar_t *cv, char *name, int type, void *arg)
{
- ASSERT3S(type, ==, CV_DEFAULT);
-
-#ifdef IM_FEELING_LUCKY
- ASSERT3U(cv->cv_magic, !=, CV_MAGIC);
-#endif
-
- cv->cv_magic = CV_MAGIC;
-
- VERIFY3S(pthread_cond_init(&cv->cv, NULL), ==, 0);
+ VERIFY(cond_init(cv, type, NULL) == 0);
}
void
cv_destroy(kcondvar_t *cv)
{
- ASSERT3U(cv->cv_magic, ==, CV_MAGIC);
- VERIFY3S(pthread_cond_destroy(&cv->cv), ==, 0);
- cv->cv_magic = 0;
+ VERIFY(cond_destroy(cv) == 0);
}
void
cv_wait(kcondvar_t *cv, kmutex_t *mp)
{
- ASSERT3U(cv->cv_magic, ==, CV_MAGIC);
- ASSERT3P(mutex_owner(mp), ==, curthread);
- mp->m_owner = MTX_INIT;
- int ret = pthread_cond_wait(&cv->cv, &mp->m_lock);
- if (ret != 0)
- VERIFY3S(ret, ==, EINTR);
+ ASSERT(mutex_owner(mp) == curthread);
+ mp->m_owner = NULL;
+ int ret = cond_wait(cv, &mp->m_lock);
+ VERIFY(ret == 0 || ret == EINTR);
mp->m_owner = curthread;
}
cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime)
{
int error;
- struct timeval tv;
timestruc_t ts;
clock_t delta;
- ASSERT3U(cv->cv_magic, ==, CV_MAGIC);
-
top:
delta = abstime - lbolt;
if (delta <= 0)
return (-1);
- VERIFY(gettimeofday(&tv, NULL) == 0);
-
- 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;
- }
+ ts.tv_sec = delta / hz;
+ ts.tv_nsec = (delta % hz) * (NANOSEC / hz);
- ASSERT3P(mutex_owner(mp), ==, curthread);
- mp->m_owner = MTX_INIT;
- error = pthread_cond_timedwait(&cv->cv, &mp->m_lock, &ts);
+ ASSERT(mutex_owner(mp) == curthread);
+ mp->m_owner = NULL;
+ error = cond_reltimedwait(cv, &mp->m_lock, &ts);
mp->m_owner = curthread;
- if (error == ETIMEDOUT)
+ if (error == ETIME)
return (-1);
if (error == EINTR)
goto top;
- VERIFY3S(error, ==, 0);
+ ASSERT(error == 0);
return (1);
}
void
cv_signal(kcondvar_t *cv)
{
- ASSERT3U(cv->cv_magic, ==, CV_MAGIC);
- VERIFY3S(pthread_cond_signal(&cv->cv), ==, 0);
+ VERIFY(cond_signal(cv) == 0);
}
void
cv_broadcast(kcondvar_t *cv)
{
- ASSERT3U(cv->cv_magic, ==, CV_MAGIC);
- VERIFY3S(pthread_cond_broadcast(&cv->cv), ==, 0);
+ VERIFY(cond_broadcast(cv) == 0);
}
/*
if (dprintf_find_string("pid"))
(void) printf("%d ", getpid());
if (dprintf_find_string("tid"))
- (void) printf("%u ", (uint_t) pthread_self());
+ (void) printf("%u ", thr_self());
if (dprintf_find_string("cpu"))
(void) printf("%u ", getcpuid());
if (dprintf_find_string("time"))
VERIFY((random_fd = open("/dev/random", O_RDONLY)) != -1);
VERIFY((urandom_fd = open("/dev/urandom", O_RDONLY)) != -1);
- thread_init();
system_taskq_init();
+
spa_init(mode);
}
kernel_fini(void)
{
spa_fini();
- system_taskq_fini();
- thread_fini();
close(random_fd);
close(urandom_fd);
krwlock_t tq_threadlock;
kcondvar_t tq_dispatch_cv;
kcondvar_t tq_wait_cv;
- kthread_t **tq_threadlist;
- kt_did_t *tq_idlist;
+ thread_t *tq_threadlist;
int tq_flags;
int tq_active;
int tq_nthreads;
tq->tq_nthreads--;
cv_broadcast(&tq->tq_wait_cv);
mutex_exit(&tq->tq_lock);
- thread_exit();
return (NULL);
}
tq->tq_maxalloc = maxalloc;
tq->tq_task.task_next = &tq->tq_task;
tq->tq_task.task_prev = &tq->tq_task;
- VERIFY3P((tq->tq_threadlist = kmem_alloc(tq->tq_nthreads *
- sizeof(kthread_t *), KM_SLEEP)), !=, NULL);
- VERIFY3P((tq->tq_idlist = kmem_alloc(tq->tq_nthreads *
- sizeof(kt_did_t), KM_SLEEP)), !=, NULL);
+ tq->tq_threadlist = kmem_alloc(nthreads * sizeof (thread_t), KM_SLEEP);
if (flags & TASKQ_PREPOPULATE) {
mutex_enter(&tq->tq_lock);
mutex_exit(&tq->tq_lock);
}
- for (t = 0; t < tq->tq_nthreads; t++) {
- VERIFY((tq->tq_threadlist[t] = thread_create(NULL, 0,
- taskq_thread, tq, THR_BOUND, NULL, 0, 0)) != NULL);
- tq->tq_idlist[t] = tq->tq_threadlist[t]->t_tid;
- }
+ for (t = 0; t < nthreads; t++)
+ (void) thr_create(0, 0, taskq_thread,
+ tq, THR_BOUND, &tq->tq_threadlist[t]);
return (tq);
}
mutex_exit(&tq->tq_lock);
for (t = 0; t < nthreads; t++)
- VERIFY3S(thread_join(tq->tq_idlist[t], NULL, NULL), ==, 0);
+ (void) thr_join(tq->tq_threadlist[t], NULL, NULL);
- kmem_free(tq->tq_threadlist, nthreads * sizeof(kthread_t *));
- kmem_free(tq->tq_idlist, nthreads * sizeof(kt_did_t));
+ kmem_free(tq->tq_threadlist, nthreads * sizeof (thread_t));
rw_destroy(&tq->tq_threadlock);
mutex_destroy(&tq->tq_lock);
return (1);
for (i = 0; i < tq->tq_nthreads; i++)
- if (tq->tq_threadlist[i] == (kthread_t *)t)
+ if (tq->tq_threadlist[i] == (thread_t)(uintptr_t)t)
return (1);
return (0);
system_taskq = taskq_create("system_taskq", 64, minclsyspri, 4, 512,
TASKQ_DYNAMIC | TASKQ_PREPOPULATE);
}
-
-void
-system_taskq_fini(void)
-{
- taskq_destroy(system_taskq);
-}
rw_exit(&tx->tx_suspend);
cv_broadcast(&tx->tx_sync_done_cv);
}
-
- thread_exit();
}
static void
cv_broadcast(&tx->tx_sync_more_cv);
cv_broadcast(&tx->tx_quiesce_done_cv);
}
-
- thread_exit();
}
/*
projects / zfs / commitdiff