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Merge commit 'refs/top-bases/linux-kernel-disk' into linux-kernel-disk

This commit is contained in:
Brian Behlendorf 2010-05-27 13:35:48 -07:00
parent 6b50333d64 51536ea5f4
commit 853b63df77
7 changed files with 197 additions and 444 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>

150
cmd/ztest/ztest.c
View File

@ -143,7 +143,7 @@ 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;
kthread_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;
@ -235,7 +235,7 @@ ztest_info_t ztest_info[] = {
* The callbacks are ordered by txg number. * The callbacks are ordered by txg number.
*/ */
typedef struct ztest_cb_list { typedef struct ztest_cb_list {
kmutex_t zcl_callbacks_lock; mutex_t zcl_callbacks_lock;
list_t zcl_callbacks; list_t zcl_callbacks;
} ztest_cb_list_t; } ztest_cb_list_t;
@ -243,8 +243,8 @@ typedef struct ztest_cb_list {
* 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 {
kmutex_t zs_vdev_lock; mutex_t zs_vdev_lock;
krwlock_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;
@ -253,11 +253,9 @@ 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];
kmutex_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_cb_list_t zs_cb_list; ztest_cb_list_t zs_cb_list;
kmutex_t zs_thr_lock;
kcondvar_t zs_thr_cv;
} ztest_shared_t; } ztest_shared_t;
static char ztest_dev_template[] = "%s/%s.%llua"; static char ztest_dev_template[] = "%s/%s.%llua";
@ -832,7 +830,7 @@ 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.
*/ */
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); 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);
@ -848,7 +846,7 @@ 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);
rw_exit(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
static vdev_t * static vdev_t *
@ -879,7 +877,7 @@ ztest_vdev_add_remove(ztest_args_t *za)
nvlist_t *nvroot; nvlist_t *nvroot;
int error; 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); spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
@ -897,7 +895,7 @@ 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);
mutex_exit(&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");
@ -926,7 +924,7 @@ ztest_vdev_aux_add_remove(ztest_args_t *za)
aux = ZPOOL_CONFIG_L2CACHE; 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); spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
@ -982,7 +980,7 @@ 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);
} }
mutex_exit(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
} }
/* /*
@ -1008,7 +1006,7 @@ ztest_vdev_attach_detach(ztest_args_t *za)
int oldvd_is_log; int oldvd_is_log;
int error, expected_error; int error, expected_error;
mutex_enter(&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);
@ -1068,7 +1066,7 @@ 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);
mutex_exit(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
return; return;
} }
@ -1161,7 +1159,7 @@ ztest_vdev_attach_detach(ztest_args_t *za)
(longlong_t)newsize, replacing, error, expected_error); (longlong_t)newsize, replacing, error, expected_error);
} }
mutex_exit(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
} }
/* /*
@ -1266,7 +1264,7 @@ ztest_vdev_LUN_growth(ztest_args_t *za)
size_t psize, newsize; size_t psize, newsize;
uint64_t spa_newsize, spa_cursize, ms_count; 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); mutex_enter(&spa_namespace_lock);
spa_config_enter(spa, SCL_STATE, spa, RW_READER); spa_config_enter(spa, SCL_STATE, spa, RW_READER);
@ -1294,7 +1292,7 @@ ztest_vdev_LUN_growth(ztest_args_t *za)
if (psize == 0 || psize >= 4 * zopt_vdev_size) { if (psize == 0 || psize >= 4 * zopt_vdev_size) {
spa_config_exit(spa, SCL_STATE, spa); spa_config_exit(spa, SCL_STATE, spa);
mutex_exit(&spa_namespace_lock); mutex_exit(&spa_namespace_lock);
mutex_exit(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
return; return;
} }
ASSERT(psize > 0); ASSERT(psize > 0);
@ -1323,7 +1321,7 @@ ztest_vdev_LUN_growth(ztest_args_t *za)
} }
(void) spa_config_exit(spa, SCL_STATE, spa); (void) spa_config_exit(spa, SCL_STATE, spa);
mutex_exit(&spa_namespace_lock); mutex_exit(&spa_namespace_lock);
mutex_exit(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
return; return;
} }
@ -1363,7 +1361,7 @@ ztest_vdev_LUN_growth(ztest_args_t *za)
spa->spa_name, oldnumbuf, newnumbuf); spa->spa_name, oldnumbuf, newnumbuf);
} }
spa_config_exit(spa, SCL_STATE, spa); spa_config_exit(spa, SCL_STATE, spa);
mutex_exit(&ztest_shared->zs_vdev_lock); (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
} }
/* ARGSUSED */ /* ARGSUSED */
@ -1462,7 +1460,7 @@ ztest_dmu_objset_create_destroy(ztest_args_t *za)
uint64_t seq; uint64_t seq;
uint64_t objects; 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, (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);
@ -1505,7 +1503,7 @@ 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");
rw_exit(&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);
@ -1587,7 +1585,7 @@ 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);
rw_exit(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
/* /*
@ -1601,7 +1599,7 @@ ztest_dmu_snapshot_create_destroy(ztest_args_t *za)
char snapname[100]; char snapname[100];
char osname[MAXNAMELEN]; 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); 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);
@ -1615,7 +1613,7 @@ 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);
rw_exit(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
/* /*
@ -1677,7 +1675,7 @@ ztest_dsl_dataset_promote_busy(ztest_args_t *za)
char osname[MAXNAMELEN]; char osname[MAXNAMELEN];
uint64_t curval = za->za_instance; 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); dmu_objset_name(os, osname);
ztest_dsl_dataset_cleanup(osname, curval); ztest_dsl_dataset_cleanup(osname, curval);
@ -1767,7 +1765,7 @@ ztest_dsl_dataset_promote_busy(ztest_args_t *za)
out: out:
ztest_dsl_dataset_cleanup(osname, curval); ztest_dsl_dataset_cleanup(osname, curval);
rw_exit(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
/* /*
@ -2575,7 +2573,7 @@ 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;
kmutex_t *lp; mutex_t *lp;
char osname[MAXNAMELEN]; char osname[MAXNAMELEN];
char *iobuf; char *iobuf;
blkptr_t blk; blkptr_t blk;
@ -2638,7 +2636,7 @@ 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];
mutex_enter(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;
@ -2695,7 +2693,7 @@ ztest_dmu_write_parallel(ztest_args_t *za)
dmu_buf_rele(bonus_db, FTAG); dmu_buf_rele(bonus_db, FTAG);
} }
mutex_exit(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 */
@ -2714,13 +2712,13 @@ ztest_dmu_write_parallel(ztest_args_t *za)
/* /*
* dmu_sync() the block we just wrote. * dmu_sync() the block we just wrote.
*/ */
mutex_enter(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) {
mutex_exit(lp); (void) mutex_unlock(lp);
return; return;
} }
blkoff = off - blkoff; blkoff = off - blkoff;
@ -2729,18 +2727,18 @@ ztest_dmu_write_parallel(ztest_args_t *za)
za->za_dbuf = NULL; za->za_dbuf = NULL;
if (error) { if (error) {
mutex_exit(lp); (void) mutex_unlock(lp);
return; return;
} }
if (blk.blk_birth == 0) { /* concurrent free */ if (blk.blk_birth == 0) { /* concurrent free */
mutex_exit(lp); (void) mutex_unlock(lp);
return; return;
} }
txg_suspend(dmu_objset_pool(os)); txg_suspend(dmu_objset_pool(os));
mutex_exit(lp); (void) mutex_unlock(lp);
ASSERT(blk.blk_fill == 1); ASSERT(blk.blk_fill == 1);
ASSERT3U(BP_GET_TYPE(&blk), ==, DMU_OT_UINT64_OTHER); ASSERT3U(BP_GET_TYPE(&blk), ==, DMU_OT_UINT64_OTHER);
@ -3155,9 +3153,9 @@ ztest_commit_callback(void *arg, int error)
ASSERT3U(data->zcd_txg, !=, 0); ASSERT3U(data->zcd_txg, !=, 0);
/* Remove our callback from the list */ /* 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); list_remove(&zcl->zcl_callbacks, data);
mutex_exit(&zcl->zcl_callbacks_lock); (void) mutex_unlock(&zcl->zcl_callbacks_lock);
out: out:
umem_free(data, sizeof (ztest_cb_data_t)); umem_free(data, sizeof (ztest_cb_data_t));
@ -3254,7 +3252,7 @@ ztest_dmu_commit_callbacks(ztest_args_t *za)
dmu_write(os, ZTEST_DIROBJ, za->za_diroff, sizeof (uint64_t), &txg, tx); 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 * Since commit callbacks don't have any ordering requirement and since
@ -3299,7 +3297,7 @@ ztest_dmu_commit_callbacks(ztest_args_t *za)
tmp_cb = cb_data[i]; tmp_cb = cb_data[i];
} }
mutex_exit(&zcl->zcl_callbacks_lock); (void) mutex_unlock(&zcl->zcl_callbacks_lock);
dmu_tx_commit(tx); dmu_tx_commit(tx);
} }
@ -3315,7 +3313,7 @@ ztest_dsl_prop_get_set(ztest_args_t *za)
char osname[MAXNAMELEN]; char osname[MAXNAMELEN];
int error; int error;
rw_enter(&ztest_shared->zs_name_lock, RW_READER); (void) rw_rdlock(&ztest_shared->zs_name_lock);
dmu_objset_name(os, osname); dmu_objset_name(os, osname);
@ -3354,7 +3352,7 @@ ztest_dsl_prop_get_set(ztest_args_t *za)
} }
} }
rw_exit(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
/* /*
@ -3518,7 +3516,7 @@ ztest_spa_rename(ztest_args_t *za)
int error; int error;
spa_t *spa; spa_t *spa;
rw_enter(&ztest_shared->zs_name_lock, RW_WRITER); (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);
@ -3570,7 +3568,7 @@ ztest_spa_rename(ztest_args_t *za)
umem_free(newname, strlen(newname) + 1); umem_free(newname, strlen(newname) + 1);
rw_exit(&ztest_shared->zs_name_lock); (void) rw_unlock(&ztest_shared->zs_name_lock);
} }
@ -3828,10 +3826,6 @@ ztest_resume_thread(void *arg)
(void) poll(NULL, 0, 1000); (void) poll(NULL, 0, 1000);
ztest_resume(spa); ztest_resume(spa);
} }
resume_thr_exited = B_TRUE;
thread_exit();
return (NULL); return (NULL);
} }
@ -3896,14 +3890,6 @@ ztest_thread(void *arg)
break; break;
} }
mutex_enter(&zs->zs_thr_lock);
za->za_exited = B_TRUE;
mutex_exit(&zs->zs_thr_lock);
/* Announce that the thread has finished */
cv_broadcast(&zs->zs_thr_cv);
thread_exit();
return (NULL); return (NULL);
} }
@ -3918,21 +3904,20 @@ ztest_run(char *pool)
ztest_args_t *za; ztest_args_t *za;
spa_t *spa; spa_t *spa;
char name[100]; char name[100];
kthread_t *resume_thread; thread_t resume_tid;
ztest_exiting = B_FALSE; ztest_exiting = B_FALSE;
mutex_init(&zs->zs_vdev_lock, NULL, MUTEX_DEFAULT, NULL); (void) _mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL);
rw_init(&zs->zs_name_lock, NULL, RW_DEFAULT, NULL); (void) rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL);
mutex_init(&zs->zs_cb_list.zcl_callbacks_lock,NULL,MUTEX_DEFAULT,NULL); (void) _mutex_init(&zs->zs_cb_list.zcl_callbacks_lock, USYNC_THREAD,
mutex_init(&zs->zs_thr_lock, NULL, MUTEX_DEFAULT, NULL); NULL);
cv_init(&zs->zs_thr_cv, NULL, CV_DEFAULT, NULL);
list_create(&zs->zs_cb_list.zcl_callbacks, sizeof (ztest_cb_data_t), list_create(&zs->zs_cb_list.zcl_callbacks, sizeof (ztest_cb_data_t),
offsetof(ztest_cb_data_t, zcd_node)); offsetof(ztest_cb_data_t, zcd_node));
for (t = 0; t < ZTEST_SYNC_LOCKS; t++) 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. * Destroy one disk before we even start.
@ -3999,9 +3984,8 @@ ztest_run(char *pool)
/* /*
* Create a thread to periodically resume suspended I/O. * Create a thread to periodically resume suspended I/O.
*/ */
resume_thr_exited = B_FALSE; VERIFY(thr_create(0, 0, ztest_resume_thread, spa, THR_BOUND,
VERIFY3P((resume_thread = thread_create(NULL, 0, ztest_resume_thread, &resume_tid) == 0);
spa, TS_RUN, NULL, 0, 0)), !=, NULL);
/* /*
* Verify that we can safely inquire about about any object, * Verify that we can safely inquire about about any object,
@ -4050,7 +4034,7 @@ ztest_run(char *pool)
if (t < zopt_datasets) { if (t < zopt_datasets) {
int test_future = FALSE; 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); (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);
@ -4058,7 +4042,7 @@ 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++;
rw_exit(&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",
@ -4069,7 +4053,7 @@ 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);
rw_exit(&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,
@ -4077,18 +4061,12 @@ 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);
} }
za[t].za_exited = B_FALSE; VERIFY(thr_create(0, 0, ztest_thread, &za[t], THR_BOUND,
&za[t].za_thread) == 0);
VERIFY3P((za[t].za_thread = thread_create(NULL, 0, ztest_thread,
&za[t], TS_RUN, NULL, 0, 0)), !=, NULL);
} }
while (--t >= 0) { while (--t >= 0) {
mutex_enter(&zs->zs_thr_lock); VERIFY(thr_join(za[t].za_thread, NULL, NULL) == 0);
while (!za[t].za_exited)
cv_wait(&zs->zs_thr_cv, &zs->zs_thr_lock);
mutex_exit(&zs->zs_thr_lock);
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);
@ -4107,7 +4085,7 @@ 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) {
rw_enter(&ztest_shared->zs_name_lock, RW_READER); (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)
@ -4118,7 +4096,7 @@ ztest_run(char *pool)
(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);
rw_exit(&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);
@ -4127,11 +4105,7 @@ ztest_run(char *pool)
/* Kill the resume thread */ /* Kill the resume thread */
ztest_exiting = B_TRUE; ztest_exiting = B_TRUE;
VERIFY(thr_join(resume_tid, NULL, NULL) == 0);
/* Wait for the resume thread to exit */
while (!resume_thr_exited)
(void) poll(NULL, 0, 200);
ztest_resume(spa); ztest_resume(spa);
/* /*
@ -4147,11 +4121,9 @@ ztest_run(char *pool)
list_destroy(&zs->zs_cb_list.zcl_callbacks); list_destroy(&zs->zs_cb_list.zcl_callbacks);
cv_destroy(&zs->zs_thr_cv); (void) _mutex_destroy(&zs->zs_cb_list.zcl_callbacks_lock);
mutex_destroy(&zs->zs_thr_lock); (void) rwlock_destroy(&zs->zs_name_lock);
mutex_destroy(&zs->zs_cb_list.zcl_callbacks_lock); (void) _mutex_destroy(&zs->zs_vdev_lock);
rw_destroy(&zs->zs_name_lock);
mutex_destroy(&zs->zs_vdev_lock);
} }
void void

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);
} }

93
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>
@ -111,7 +112,6 @@ 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) || \
@ -122,10 +122,7 @@ 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
@ -198,34 +195,15 @@ _NOTE(CONSTCOND) } while (0)
/* /*
* Threads * Threads
*/ */
#define TS_RUN 0x00000002 #define curthread ((void *)(uintptr_t)thr_self())
#define STACK_SIZE 8192 /* Linux x86 and amd64 */ typedef struct kthread kthread_t;
typedef void (*thread_func_t)(void);
typedef void (*thread_func_arg_t)(void *);
typedef pthread_t kt_did_t;
typedef struct kthread {
kt_did_t t_tid;
thread_func_t t_func;
void * t_arg;
} kthread_t;
/* XXX tsd_create()/tsd_destroy() missing */
#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) \ #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
zk_thread_create(stk, stksize, (thread_func_t) func, arg, len, \ zk_thread_create(func, arg)
NULL, state, pri) #define thread_exit() thr_exit(NULL)
extern kthread_t *zk_thread_current(void); extern kthread_t *zk_thread_create(void (*func)(), void *arg);
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);
#define issig(why) (FALSE) #define issig(why) (FALSE)
#define ISSIG(thr, why) (FALSE) #define ISSIG(thr, why) (FALSE)
@ -233,20 +211,28 @@ extern kthread_t *zk_thread_create(caddr_t stk, size_t stksize,
/* /*
* Mutexes * Mutexes
*/ */
#define MTX_MAGIC 0x9522f51362a6e326ull
#define MTX_INIT (void *)NULL
#define MTX_DEST (void *)-1UL
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);
@ -255,26 +241,23 @@ extern void *mutex_owner(kmutex_t *mp);
/* /*
* RW locks * RW locks
*/ */
#define RW_MAGIC 0x4d31fb123648e78aull
#define RW_INIT (void *)NULL
#define RW_DEST (void *)-1UL
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);
@ -292,13 +275,9 @@ 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);
@ -359,7 +338,6 @@ extern void taskq_destroy(taskq_t *);
extern void taskq_wait(taskq_t *); extern void taskq_wait(taskq_t *);
extern int taskq_member(taskq_t *, kthread_t *); extern int taskq_member(taskq_t *, kthread_t *);
extern void system_taskq_init(void); extern void system_taskq_init(void);
extern void system_taskq_fini(void);
#define XVA_MAPSIZE 3 #define XVA_MAPSIZE 3
#define XVA_MAGIC 0x78766174 #define XVA_MAGIC 0x78766174
@ -474,8 +452,7 @@ 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

335
lib/libzpool/kernel.c
View File

@ -30,13 +30,11 @@
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <zlib.h> #include <zlib.h>
#include <sys/signal.h>
#include <sys/spa.h> #include <sys/spa.h>
#include <sys/stat.h> #include <sys/stat.h>
#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>
/* /*
@ -56,144 +54,16 @@ struct utsname utsname = {
* threads * threads
* ========================================================================= * =========================================================================
*/ */
/*ARGSUSED*/
pthread_cond_t kthread_cond = PTHREAD_COND_INITIALIZER;
pthread_mutex_t kthread_lock = PTHREAD_MUTEX_INITIALIZER;
pthread_key_t kthread_key;
int kthread_nr = 0;
static void
thread_init(void)
{
kthread_t *kt;
VERIFY3S(pthread_key_create(&kthread_key, NULL), ==, 0);
/* Create entry for primary kthread */
kt = umem_zalloc(sizeof(kthread_t), UMEM_NOFAIL);
kt->t_tid = pthread_self();
kt->t_func = NULL;
VERIFY3S(pthread_setspecific(kthread_key, kt), ==, 0);
/* Only the main thread should be running at the moment */
ASSERT3S(kthread_nr, ==, 0);
kthread_nr = 1;
}
static void
thread_fini(void)
{
kthread_t *kt = curthread;
ASSERT(pthread_equal(kt->t_tid, pthread_self()));
ASSERT3P(kt->t_func, ==, NULL);
umem_free(kt, sizeof(kthread_t));
/* Wait for all threads to exit via thread_exit() */
VERIFY3S(pthread_mutex_lock(&kthread_lock), ==, 0);
kthread_nr--; /* Main thread is exiting */
while (kthread_nr > 0)
VERIFY3S(pthread_cond_wait(&kthread_cond, &kthread_lock), ==,
0);
ASSERT3S(kthread_nr, ==, 0);
VERIFY3S(pthread_mutex_unlock(&kthread_lock), ==, 0);
VERIFY3S(pthread_key_delete(kthread_key), ==, 0);
}
kthread_t * kthread_t *
zk_thread_current(void) zk_thread_create(void (*func)(), void *arg)
{ {
kthread_t *kt = pthread_getspecific(kthread_key); thread_t tid;
ASSERT3P(kt, !=, NULL); VERIFY(thr_create(0, 0, (void *(*)(void *))func, arg, THR_DETACHED,
&tid) == 0);
return kt; return ((void *)(uintptr_t)tid);
}
void *
zk_thread_helper(void *arg)
{
kthread_t *kt = (kthread_t *) arg;
VERIFY3S(pthread_setspecific(kthread_key, kt), ==, 0);
VERIFY3S(pthread_mutex_lock(&kthread_lock), ==, 0);
kthread_nr++;
VERIFY3S(pthread_mutex_unlock(&kthread_lock), ==, 0);
kt->t_tid = pthread_self();
((thread_func_arg_t) kt->t_func)(kt->t_arg);
/* Unreachable, thread must exit with thread_exit() */
abort();
return NULL;
}
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)
{
kthread_t *kt;
pthread_t tid;
pthread_attr_t attr;
size_t stack;
/*
* Due to a race when getting/setting the thread ID, currently only
* detached threads are supported.
*/
ASSERT3S(state & ~TS_RUN, ==, 0);
kt = umem_zalloc(sizeof(kthread_t), UMEM_NOFAIL);
kt->t_func = func;
kt->t_arg = arg;
/*
* The Solaris kernel stack size in x86/x64 is 8K, so we reduce the
* default stack size in userspace, for sanity checking.
*
* PTHREAD_STACK_MIN is the stack required for a NULL procedure in
* userspace.
*
* XXX: Stack size for other architectures is not being taken into
* account.
*/
stack = PTHREAD_STACK_MIN + MAX(stksize, STACK_SIZE);
VERIFY3S(pthread_attr_init(&attr), ==, 0);
VERIFY3S(pthread_attr_setstacksize(&attr, stack), ==, 0);
VERIFY3S(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED),
==, 0);
VERIFY3S(pthread_create(&tid, &attr, &zk_thread_helper, kt), ==, 0);
VERIFY3S(pthread_attr_destroy(&attr), ==, 0);
return kt;
}
void
zk_thread_exit(void)
{
kthread_t *kt = curthread;
ASSERT(pthread_equal(kt->t_tid, pthread_self()));
umem_free(kt, sizeof(kthread_t));
pthread_mutex_lock(&kthread_lock);
kthread_nr--;
pthread_mutex_unlock(&kthread_lock);
pthread_cond_broadcast(&kthread_cond);
pthread_exit(NULL);
} }
/* /*
@ -225,48 +95,41 @@ kstat_delete(kstat_t *ksp)
* ========================================================================= * =========================================================================
*/ */
void void
mutex_init(kmutex_t *mp, char *name, int type, void *cookie) zmutex_init(kmutex_t *mp)
{ {
ASSERT3S(type, ==, MUTEX_DEFAULT); mp->m_owner = NULL;
ASSERT3P(cookie, ==, NULL); mp->initialized = B_TRUE;
(void) _mutex_init(&mp->m_lock, USYNC_THREAD, 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);
} }
void void
mutex_destroy(kmutex_t *mp) zmutex_destroy(kmutex_t *mp)
{ {
ASSERT3U(mp->m_magic, ==, MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
ASSERT3P(mp->m_owner, ==, MTX_INIT); ASSERT(mp->m_owner == NULL);
VERIFY3S(pthread_mutex_destroy(&(mp)->m_lock), ==, 0); (void) _mutex_destroy(&(mp)->m_lock);
mp->m_owner = MTX_DEST; 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)
{ {
ASSERT3U(mp->m_magic, ==, MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
ASSERT3P(mp->m_owner, !=, MTX_DEST); ASSERT(mp->m_owner != (void *)-1UL);
ASSERT3P(mp->m_owner, !=, curthread); ASSERT(mp->m_owner != curthread);
VERIFY3S(pthread_mutex_lock(&mp->m_lock), ==, 0); VERIFY(mutex_lock(&mp->m_lock) == 0);
ASSERT3P(mp->m_owner, ==, MTX_INIT); ASSERT(mp->m_owner == NULL);
mp->m_owner = curthread; mp->m_owner = curthread;
} }
int int
mutex_tryenter(kmutex_t *mp) mutex_tryenter(kmutex_t *mp)
{ {
ASSERT3U(mp->m_magic, ==, MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
ASSERT3P(mp->m_owner, !=, MTX_DEST); ASSERT(mp->m_owner != (void *)-1UL);
if (0 == pthread_mutex_trylock(&mp->m_lock)) { if (0 == mutex_trylock(&mp->m_lock)) {
ASSERT3P(mp->m_owner, ==, MTX_INIT); ASSERT(mp->m_owner == NULL);
mp->m_owner = curthread; mp->m_owner = curthread;
return (1); return (1);
} else { } else {
@ -277,16 +140,16 @@ mutex_tryenter(kmutex_t *mp)
void void
mutex_exit(kmutex_t *mp) mutex_exit(kmutex_t *mp)
{ {
ASSERT3U(mp->m_magic, ==, MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
ASSERT3P(mutex_owner(mp), ==, curthread); ASSERT(mutex_owner(mp) == curthread);
mp->m_owner = MTX_INIT; 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)
{ {
ASSERT3U(mp->m_magic, ==, MTX_MAGIC); ASSERT(mp->initialized == B_TRUE);
return (mp->m_owner); return (mp->m_owner);
} }
@ -299,48 +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)
{ {
ASSERT3S(type, ==, RW_DEFAULT); rwlock_init(&rwlp->rw_lock, USYNC_THREAD, NULL);
ASSERT3P(arg, ==, NULL); rwlp->rw_owner = NULL;
rwlp->initialized = B_TRUE;
#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;
} }
void void
rw_destroy(krwlock_t *rwlp) rw_destroy(krwlock_t *rwlp)
{ {
ASSERT3U(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)
{ {
ASSERT3U(rwlp->rw_magic, ==, RW_MAGIC); ASSERT(!RW_LOCK_HELD(rwlp));
ASSERT3P(rwlp->rw_owner, !=, curthread); ASSERT(rwlp->initialized == B_TRUE);
ASSERT3P(rwlp->rw_wr_owner, !=, curthread); ASSERT(rwlp->rw_owner != (void *)-1UL);
ASSERT(rwlp->rw_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);
ASSERT3P(rwlp->rw_wr_owner, ==, RW_INIT); else
VERIFY(rw_wrlock(&rwlp->rw_lock) == 0);
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);
rwlp->rw_wr_owner = curthread;
}
rwlp->rw_owner = curthread; rwlp->rw_owner = curthread;
} }
@ -348,16 +194,11 @@ rw_enter(krwlock_t *rwlp, krw_t rw)
void void
rw_exit(krwlock_t *rwlp) rw_exit(krwlock_t *rwlp)
{ {
ASSERT3U(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)) rwlp->rw_owner = NULL;
atomic_dec_uint(&rwlp->rw_readers); VERIFY(rw_unlock(&rwlp->rw_lock) == 0);
else
rwlp->rw_wr_owner = RW_INIT;
rwlp->rw_owner = RW_INIT;
VERIFY3S(pthread_rwlock_unlock(&rwlp->rw_lock), ==, 0);
} }
int int
@ -365,29 +206,19 @@ rw_tryenter(krwlock_t *rwlp, krw_t rw)
{ {
int rv; int rv;
ASSERT3U(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) {
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; rwlp->rw_owner = curthread;
return (1); return (1);
} }
VERIFY3S(rv, ==, EBUSY);
return (0); return (0);
} }
@ -395,7 +226,8 @@ rw_tryenter(krwlock_t *rwlp, krw_t rw)
int int
rw_tryupgrade(krwlock_t *rwlp) rw_tryupgrade(krwlock_t *rwlp)
{ {
ASSERT3U(rwlp->rw_magic, ==, RW_MAGIC); ASSERT(rwlp->initialized == B_TRUE);
ASSERT(rwlp->rw_owner != (void *)-1UL);
return (0); return (0);
} }
@ -409,34 +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)
{ {
ASSERT3S(type, ==, CV_DEFAULT); VERIFY(cond_init(cv, type, NULL) == 0);
#ifdef IM_FEELING_LUCKY
ASSERT3U(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)
{ {
ASSERT3U(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)
{ {
ASSERT3U(cv->cv_magic, ==, CV_MAGIC); ASSERT(mutex_owner(mp) == curthread);
ASSERT3P(mutex_owner(mp), ==, curthread); mp->m_owner = NULL;
mp->m_owner = MTX_INIT; int ret = cond_wait(cv, &mp->m_lock);
int ret = pthread_cond_wait(&cv->cv, &mp->m_lock); VERIFY(ret == 0 || ret == EINTR);
if (ret != 0)
VERIFY3S(ret, ==, EINTR);
mp->m_owner = curthread; mp->m_owner = curthread;
} }
@ -444,38 +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;
ASSERT3U(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; ASSERT(mutex_owner(mp) == curthread);
ts.tv_nsec = tv.tv_usec * 1000 + (delta % hz) * (NANOSEC / hz); mp->m_owner = NULL;
if (ts.tv_nsec >= NANOSEC) { error = cond_reltimedwait(cv, &mp->m_lock, &ts);
ts.tv_sec++;
ts.tv_nsec -= NANOSEC;
}
ASSERT3P(mutex_owner(mp), ==, curthread);
mp->m_owner = MTX_INIT;
error = pthread_cond_timedwait(&cv->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);
} }
@ -483,15 +294,13 @@ top:
void void
cv_signal(kcondvar_t *cv) cv_signal(kcondvar_t *cv)
{ {
ASSERT3U(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)
{ {
ASSERT3U(cv->cv_magic, ==, CV_MAGIC); VERIFY(cond_broadcast(cv) == 0);
VERIFY3S(pthread_cond_broadcast(&cv->cv), ==, 0);
} }
/* /*
@ -741,7 +550,7 @@ __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"))
@ -982,8 +791,8 @@ kernel_init(int mode)
VERIFY((random_fd = open("/dev/random", O_RDONLY)) != -1); VERIFY((random_fd = open("/dev/random", O_RDONLY)) != -1);
VERIFY((urandom_fd = open("/dev/urandom", O_RDONLY)) != -1); VERIFY((urandom_fd = open("/dev/urandom", O_RDONLY)) != -1);
thread_init();
system_taskq_init(); system_taskq_init();
spa_init(mode); spa_init(mode);
} }
@ -991,8 +800,6 @@ void
kernel_fini(void) kernel_fini(void)
{ {
spa_fini(); spa_fini();
system_taskq_fini();
thread_fini();
close(random_fd); close(random_fd);
close(urandom_fd); close(urandom_fd);

27
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;
kthread_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;
@ -163,7 +163,7 @@ taskq_thread(void *arg)
tq->tq_nthreads--; tq->tq_nthreads--;
cv_broadcast(&tq->tq_wait_cv); cv_broadcast(&tq->tq_wait_cv);
mutex_exit(&tq->tq_lock); mutex_exit(&tq->tq_lock);
thread_exit(); return (NULL);
} }
/*ARGSUSED*/ /*ARGSUSED*/
@ -198,8 +198,7 @@ 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(tq->tq_nthreads * sizeof(kthread_t *), tq->tq_threadlist = kmem_alloc(nthreads * sizeof (thread_t), KM_SLEEP);
KM_SLEEP);
if (flags & TASKQ_PREPOPULATE) { if (flags & TASKQ_PREPOPULATE) {
mutex_enter(&tq->tq_lock); mutex_enter(&tq->tq_lock);
@ -208,10 +207,9 @@ taskq_create(const char *name, int nthreads, pri_t pri,
mutex_exit(&tq->tq_lock); mutex_exit(&tq->tq_lock);
} }
for (t = 0; t < tq->tq_nthreads; t++) { for (t = 0; t < nthreads; t++)
VERIFY((tq->tq_threadlist[t] = thread_create(NULL, 0, (void) thr_create(0, 0, taskq_thread,
taskq_thread, tq, TS_RUN, NULL, 0, 0)) != NULL); tq, THR_BOUND, &tq->tq_threadlist[t]);
}
return (tq); return (tq);
} }
@ -239,7 +237,10 @@ taskq_destroy(taskq_t *tq)
mutex_exit(&tq->tq_lock); mutex_exit(&tq->tq_lock);
kmem_free(tq->tq_threadlist, nthreads * sizeof(kthread_t *)); for (t = 0; t < nthreads; t++)
(void) thr_join(tq->tq_threadlist[t], NULL, NULL);
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);
@ -258,7 +259,7 @@ taskq_member(taskq_t *tq, kthread_t *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] == t) if (tq->tq_threadlist[i] == (thread_t)(uintptr_t)t)
return (1); return (1);
return (0); return (0);
@ -270,9 +271,3 @@ system_taskq_init(void)
system_taskq = taskq_create("system_taskq", 64, minclsyspri, 4, 512, system_taskq = taskq_create("system_taskq", 64, minclsyspri, 4, 512,
TASKQ_DYNAMIC | TASKQ_PREPOPULATE); TASKQ_DYNAMIC | TASKQ_PREPOPULATE);
} }
void
system_taskq_fini(void)
{
taskq_destroy(system_taskq);
}