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

This commit is contained in:
Brian Behlendorf 2009-07-08 15:02:56 -07:00
parent 1e0e588128 d95ee13c20
commit 4ba38f1259
4 changed files with 141 additions and 81 deletions
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123
cmd/ztest/ztest.c
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@ -140,7 +140,7 @@ 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; kthread_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;
@ -231,7 +231,7 @@ 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 {
pthread_mutex_t zcl_callbacks_lock; kmutex_t zcl_callbacks_lock;
list_t zcl_callbacks; list_t zcl_callbacks;
} ztest_cb_list_t; } ztest_cb_list_t;
@ -239,8 +239,8 @@ 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 {
pthread_mutex_t zs_vdev_lock; kmutex_t zs_vdev_lock;
pthread_rwlock_t zs_name_lock; krwlock_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;
@ -249,7 +249,7 @@ 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]; kmutex_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;
} ztest_shared_t; } ztest_shared_t;
@ -825,7 +825,7 @@ 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); rw_enter(&ztest_shared->zs_name_lock, RW_READER);
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);
@ -841,7 +841,7 @@ 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); rw_exit(&ztest_shared->zs_name_lock);
} }
static vdev_t * static vdev_t *
@ -872,7 +872,7 @@ 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); mutex_enter(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
@ -890,7 +890,7 @@ 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); mutex_exit(&ztest_shared->zs_vdev_lock);
if (error == ENOSPC) if (error == ENOSPC)
ztest_record_enospc("spa_vdev_add"); ztest_record_enospc("spa_vdev_add");
@ -919,7 +919,7 @@ 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); mutex_enter(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
@ -975,7 +975,7 @@ 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); mutex_exit(&ztest_shared->zs_vdev_lock);
} }
/* /*
@ -1001,7 +1001,7 @@ 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); mutex_enter(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
@ -1061,7 +1061,7 @@ 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); mutex_exit(&ztest_shared->zs_vdev_lock);
return; return;
} }
@ -1154,7 +1154,7 @@ 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); mutex_exit(&ztest_shared->zs_vdev_lock);
} }
/* /*
@ -1259,7 +1259,7 @@ 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;
(void) pthread_mutex_lock(&ztest_shared->zs_vdev_lock); mutex_enter(&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);
@ -1287,7 +1287,7 @@ 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);
(void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock); mutex_exit(&ztest_shared->zs_vdev_lock);
return; return;
} }
ASSERT(psize > 0); ASSERT(psize > 0);
@ -1316,7 +1316,7 @@ 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);
(void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock); mutex_exit(&ztest_shared->zs_vdev_lock);
return; return;
} }
@ -1356,7 +1356,7 @@ 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);
(void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock); mutex_exit(&ztest_shared->zs_vdev_lock);
} }
/* ARGSUSED */ /* ARGSUSED */
@ -1455,7 +1455,7 @@ 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); rw_enter(&ztest_shared->zs_name_lock, RW_READER);
(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);
@ -1498,7 +1498,7 @@ 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); rw_exit(&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);
@ -1580,7 +1580,7 @@ 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); rw_exit(&ztest_shared->zs_name_lock);
} }
/* /*
@ -1594,7 +1594,7 @@ 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); rw_enter(&ztest_shared->zs_name_lock, RW_READER);
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);
@ -1608,7 +1608,7 @@ 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); rw_exit(&ztest_shared->zs_name_lock);
} }
/* /*
@ -1670,7 +1670,7 @@ 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;
(void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock); rw_enter(&ztest_shared->zs_name_lock, RW_READER);
dmu_objset_name(os, osname); dmu_objset_name(os, osname);
ztest_dsl_dataset_cleanup(osname, curval); ztest_dsl_dataset_cleanup(osname, curval);
@ -1760,7 +1760,7 @@ ztest_dsl_dataset_promote_busy(ztest_args_t *za)
out: out:
ztest_dsl_dataset_cleanup(osname, curval); ztest_dsl_dataset_cleanup(osname, curval);
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); rw_exit(&ztest_shared->zs_name_lock);
} }
/* /*
@ -2568,7 +2568,7 @@ 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; kmutex_t *lp;
char osname[MAXNAMELEN]; char osname[MAXNAMELEN];
char iobuf[SPA_MAXBLOCKSIZE]; char iobuf[SPA_MAXBLOCKSIZE];
blkptr_t blk; blkptr_t blk;
@ -2631,7 +2631,7 @@ 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); mutex_enter(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;
@ -2688,7 +2688,7 @@ ztest_dmu_write_parallel(ztest_args_t *za)
dmu_buf_rele(bonus_db, FTAG); dmu_buf_rele(bonus_db, FTAG);
} }
(void) pthread_mutex_unlock(lp); mutex_exit(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 */
@ -2707,13 +2707,13 @@ 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); mutex_enter(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); mutex_exit(lp);
return; return;
} }
blkoff = off - blkoff; blkoff = off - blkoff;
@ -2722,18 +2722,18 @@ ztest_dmu_write_parallel(ztest_args_t *za)
za->za_dbuf = NULL; za->za_dbuf = NULL;
if (error) { if (error) {
(void) pthread_mutex_unlock(lp); mutex_exit(lp);
return; return;
} }
if (blk.blk_birth == 0) { /* concurrent free */ if (blk.blk_birth == 0) { /* concurrent free */
(void) pthread_mutex_unlock(lp); mutex_exit(lp);
return; return;
} }
txg_suspend(dmu_objset_pool(os)); txg_suspend(dmu_objset_pool(os));
(void) pthread_mutex_unlock(lp); mutex_exit(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);
@ -3144,9 +3144,9 @@ 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 */
(void) pthread_mutex_lock(&zcl->zcl_callbacks_lock); mutex_enter(&zcl->zcl_callbacks_lock);
list_remove(&zcl->zcl_callbacks, data); list_remove(&zcl->zcl_callbacks, data);
(void) pthread_mutex_unlock(&zcl->zcl_callbacks_lock); mutex_exit(&zcl->zcl_callbacks_lock);
out: out:
umem_free(data, sizeof (ztest_cb_data_t)); umem_free(data, sizeof (ztest_cb_data_t));
@ -3234,8 +3234,8 @@ ztest_dmu_commit_callbacks(ztest_args_t *za)
/* /*
* Read existing data to make sure there isn't a future leak. * Read existing data to make sure there isn't a future leak.
*/ */
VERIFY(0 == dmu_read(os, ZTEST_DIROBJ, za->za_diroff, sizeof (uint64_t), VERIFY(0 == dmu_read(os, ZTEST_DIROBJ, za->za_diroff,
&old_txg)); sizeof (uint64_t), &old_txg, DMU_READ_PREFETCH));
if (old_txg > txg) if (old_txg > txg)
fatal(0, "future leak: got %llx, open txg is %llx", old_txg, fatal(0, "future leak: got %llx, open txg is %llx", old_txg,
@ -3243,7 +3243,7 @@ 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);
(void) pthread_mutex_lock(&zcl->zcl_callbacks_lock); mutex_enter(&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
@ -3288,7 +3288,7 @@ ztest_dmu_commit_callbacks(ztest_args_t *za)
tmp_cb = cb_data[i]; tmp_cb = cb_data[i];
} }
(void) pthread_mutex_unlock(&zcl->zcl_callbacks_lock); mutex_exit(&zcl->zcl_callbacks_lock);
dmu_tx_commit(tx); dmu_tx_commit(tx);
} }
@ -3304,7 +3304,7 @@ 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); rw_enter(&ztest_shared->zs_name_lock, RW_READER);
dmu_objset_name(os, osname); dmu_objset_name(os, osname);
@ -3343,7 +3343,7 @@ ztest_dsl_prop_get_set(ztest_args_t *za)
} }
} }
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); rw_exit(&ztest_shared->zs_name_lock);
} }
/* /*
@ -3507,7 +3507,7 @@ 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); rw_enter(&ztest_shared->zs_name_lock, RW_WRITER);
oldname = za->za_pool; oldname = za->za_pool;
newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL); newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
@ -3559,7 +3559,7 @@ 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); rw_exit(&ztest_shared->zs_name_lock);
} }
@ -3898,19 +3898,19 @@ 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; kthread_t *resume_thread;
ztest_exiting = B_FALSE; ztest_exiting = B_FALSE;
(void) pthread_mutex_init(&zs->zs_vdev_lock, NULL); mutex_init(&zs->zs_vdev_lock, NULL, MUTEX_DEFAULT, NULL);
(void) pthread_rwlock_init(&zs->zs_name_lock, NULL); rw_init(&zs->zs_name_lock, NULL, RW_DEFAULT, NULL);
(void) pthread_mutex_init(&zs->zs_cb_list.zcl_callbacks_lock, NULL); mutex_init(&zs->zs_cb_list.zcl_callbacks_lock,NULL,MUTEX_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++)
(void) pthread_mutex_init(&zs->zs_sync_lock[t], NULL); mutex_init(&zs->zs_sync_lock[t], NULL, MUTEX_DEFAULT, NULL);
/* /*
* Destroy one disk before we even start. * Destroy one disk before we even start.
@ -3977,7 +3977,8 @@ 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); resume_thread = thread_create(NULL, 0, ztest_resume_thread, spa,
THR_BOUND, NULL, 0, 0);
/* /*
* Verify that we can safely inquire about about any object, * Verify that we can safely inquire about about any object,
@ -4026,7 +4027,7 @@ 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); rw_enter(&ztest_shared->zs_name_lock, RW_READER);
(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);
@ -4034,7 +4035,7 @@ 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); rw_exit(&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",
@ -4045,7 +4046,7 @@ 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); rw_exit(&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,
@ -4053,12 +4054,12 @@ 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, za[t].za_thread = thread_create(NULL, 0, ztest_thread, &za[t],
&za[t]) == 0); THR_BOUND, NULL, 0, 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);
@ -4077,7 +4078,7 @@ 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) {
(void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock); rw_enter(&ztest_shared->zs_name_lock, RW_READER);
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)
@ -4088,7 +4089,7 @@ 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);
(void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock); rw_exit(&ztest_shared->zs_name_lock);
} }
txg_wait_synced(spa_get_dsl(spa), 0); txg_wait_synced(spa_get_dsl(spa), 0);
@ -4097,7 +4098,7 @@ 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_thread, NULL, NULL) == 0);
ztest_resume(spa); ztest_resume(spa);
/* /*
@ -4113,9 +4114,9 @@ ztest_run(char *pool)
list_destroy(&zs->zs_cb_list.zcl_callbacks); list_destroy(&zs->zs_cb_list.zcl_callbacks);
(void) pthread_mutex_destroy(&zs->zs_cb_list.zcl_callbacks_lock); mutex_destroy(&zs->zs_cb_list.zcl_callbacks_lock);
(void) pthread_rwlock_destroy(&zs->zs_name_lock); rw_destroy(&zs->zs_name_lock);
(void) pthread_mutex_destroy(&zs->zs_vdev_lock); mutex_destroy(&zs->zs_vdev_lock);
} }
void void

16
lib/libzpool/include/sys/zfs_context.h
View File

@ -198,18 +198,24 @@ _NOTE(CONSTCOND) } while (0)
/* /*
* Threads * Threads
*/ */
#define curthread ((void *)(uintptr_t)pthread_self())
#define tsd_get(key) pthread_getspecific(key) #define tsd_get(key) pthread_getspecific(key)
#define tsd_set(key, val) pthread_setspecific(key, val) #define tsd_set(key, val) pthread_setspecific(key, val)
typedef struct kthread kthread_t;
typedef void (*thread_func_t)(void *); typedef void (*thread_func_t)(void *);
typedef struct kthread {
list_node_t t_node;
pthread_t t_id;
pthread_attr_t t_attr;
} kthread_t;
#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ #define curthread zk_curthread()
zk_thread_create((thread_func_t)func, arg) #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
#define thread_exit() pthread_exit(NULL) zk_thread_create((thread_func_t)func, arg)
#define thr_join(kt, v1, v2) pthread_join(kt->t_id, v2)
extern kthread_t *zk_curthread(void);
extern kthread_t *zk_thread_create(thread_func_t func, void *arg); extern kthread_t *zk_thread_create(thread_func_t func, void *arg);
extern void thread_exit(void);
#define issig(why) (FALSE) #define issig(why) (FALSE)
#define ISSIG(thr, why) (FALSE) #define ISSIG(thr, why) (FALSE)

69
lib/libzpool/kernel.c
View File

@ -55,20 +55,66 @@ struct utsname utsname = {
* threads * threads
* ========================================================================= * =========================================================================
*/ */
/*ARGSUSED*/
kmutex_t kthread_lock;
list_t kthread_list;
kthread_t *
zk_curthread(void)
{
kthread_t *kt;
pthread_t tid;
tid = pthread_self();
mutex_enter(&kthread_lock);
for (kt = list_head(&kthread_list); kt != NULL;
kt = list_next(&kthread_list, kt)) {
if (kt->t_id == tid) {
mutex_exit(&kthread_lock);
return kt;
}
}
mutex_exit(&kthread_lock);
return NULL;
}
kthread_t * kthread_t *
zk_thread_create(thread_func_t func, void *arg) zk_thread_create(thread_func_t func, void *arg)
{ {
pthread_t tid; kthread_t *kt;
pthread_attr_t attr; kt = umem_zalloc(sizeof(kthread_t), UMEM_NOFAIL);
VERIFY(pthread_attr_init(&attr) == 0);
VERIFY(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED) == 0);
VERIFY(pthread_create(&tid, &attr, (void *(*)(void *))func, arg) == 0); VERIFY(pthread_attr_init(&kt->t_attr) == 0);
VERIFY(pthread_attr_setdetachstate(&kt->t_attr,
PTHREAD_CREATE_DETACHED) == 0);
VERIFY(pthread_create(&kt->t_id, &kt->t_attr,
(void *(*)(void *))func, arg) == 0);
/* XXX: not portable */ mutex_enter(&kthread_lock);
return ((void *)(uintptr_t)tid); list_insert_head(&kthread_list, kt);
mutex_exit(&kthread_lock);
return kt;
}
void
thread_exit(void)
{
kthread_t *kt;
VERIFY((kt = curthread) != NULL);
mutex_enter(&kthread_lock);
list_remove(&kthread_list, kt);
mutex_exit(&kthread_lock);
VERIFY(pthread_attr_destroy(&kt->t_attr) == 0);
umem_free(kt, sizeof(kthread_t));
pthread_exit(NULL);
} }
/* /*
@ -849,6 +895,10 @@ 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);
mutex_init(&kthread_lock, NULL, MUTEX_DEFAULT, NULL);
list_create(&kthread_list, sizeof (kthread_t),
offsetof(kthread_t, t_node));
system_taskq_init(); system_taskq_init();
spa_init(mode); spa_init(mode);
@ -859,6 +909,9 @@ kernel_fini(void)
{ {
spa_fini(); spa_fini();
list_destroy(&kthread_list);
mutex_destroy(&kthread_lock);
close(random_fd); close(random_fd);
close(urandom_fd); close(urandom_fd);

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; kthread_t **tq_threadlist;
int tq_flags; int tq_flags;
int tq_active; int tq_active;
int tq_nthreads; int tq_nthreads;
@ -198,7 +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(nthreads * sizeof (pthread_t), KM_SLEEP); tq->tq_threadlist = kmem_alloc(nthreads*sizeof(kthread_t *), KM_SLEEP);
if (flags & TASKQ_PREPOPULATE) { if (flags & TASKQ_PREPOPULATE) {
mutex_enter(&tq->tq_lock); mutex_enter(&tq->tq_lock);
@ -208,8 +208,8 @@ 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], VERIFY((tq->tq_threadlist[t] = thread_create(NULL, 0,
NULL, taskq_thread, tq) == 0); taskq_thread, tq, THR_BOUND, NULL, 0, 0)) != NULL);
return (tq); return (tq);
} }
@ -239,9 +239,9 @@ 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(kthread_t *));
rw_destroy(&tq->tq_threadlock); rw_destroy(&tq->tq_threadlock);
mutex_destroy(&tq->tq_lock); mutex_destroy(&tq->tq_lock);
@ -260,7 +260,7 @@ 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] == (kthread_t *)t)
return (1); return (1);
return (0); return (0);