*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
*/
/* Portions Copyright 2010 Robert Milkowski */
ASSERT(ds == NULL || MUTEX_HELD(&ds->ds_opening_lock));
- os = kmem_zalloc(sizeof (objset_t), KM_SLEEP);
+ os = kmem_zalloc(sizeof (objset_t), KM_PUSHPAGE);
os->os_dsl_dataset = ds;
os->os_spa = spa;
os->os_rootbp = bp;
if (DMU_OS_IS_L2CACHEABLE(os))
aflags |= ARC_L2CACHE;
+ if (DMU_OS_IS_L2COMPRESSIBLE(os))
+ aflags |= ARC_L2COMPRESS;
dprintf_bp(os->os_rootbp, "reading %s", "");
- /*
- * XXX when bprewrite scrub can change the bp,
- * and this is called from dmu_objset_open_ds_os, the bp
- * could change, and we'll need a lock.
- */
- err = dsl_read_nolock(NULL, spa, os->os_rootbp,
+ err = arc_read(NULL, spa, os->os_rootbp,
arc_getbuf_func, &os->os_phys_buf,
ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &aflags, &zb);
if (err) {
if (strlen(sn->htag) + MAX_TAG_PREFIX_LEN >= MAXNAMELEN)
return (E2BIG);
- sn->ha = kmem_alloc(sizeof (struct dsl_ds_holdarg), KM_SLEEP);
+ sn->ha = kmem_alloc(sizeof(struct dsl_ds_holdarg), KM_PUSHPAGE);
sn->ha->temphold = B_TRUE;
sn->ha->htag = sn->htag;
}
SET_BOOKMARK(&zb, os->os_dsl_dataset ?
os->os_dsl_dataset->ds_object : DMU_META_OBJSET,
ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID);
- VERIFY3U(0, ==, arc_release_bp(os->os_phys_buf, &os->os_phys_buf,
- os->os_rootbp, os->os_spa, &zb));
+ arc_release(os->os_phys_buf, &os->os_phys_buf);
dmu_write_policy(os, NULL, 0, 0, &zp);
zio = arc_write(pio, os->os_spa, tx->tx_txg,
- os->os_rootbp, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os), &zp,
- dmu_objset_write_ready, dmu_objset_write_done, os,
- ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb);
+ os->os_rootbp, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os),
+ DMU_OS_IS_L2COMPRESSIBLE(os), &zp, dmu_objset_write_ready,
+ dmu_objset_write_done, os, ZIO_PRIORITY_ASYNC_WRITE,
+ ZIO_FLAG_MUSTSUCCEED, &zb);
/*
* Sync special dnodes - the parent IO for the sync is the root block
!list_is_empty(&os->os_free_dnodes[txg & TXG_MASK]));
}
-boolean_t
-dmu_objset_is_dirty_anywhere(objset_t *os)
-{
- int t;
-
- for (t = 0; t < TXG_SIZE; t++)
- if (dmu_objset_is_dirty(os, t))
- return (B_TRUE);
- return (B_FALSE);
-}
-
static objset_used_cb_t *used_cbs[DMU_OST_NUMTYPES];
void
return (0);
}
-/*
- * Determine the objset id for a given snapshot name.
- */
int
-dmu_snapshot_id(objset_t *os, const char *snapname, uint64_t *idp)
+dmu_snapshot_lookup(objset_t *os, const char *name, uint64_t *value)
{
- dsl_dataset_t *ds = os->os_dsl_dataset;
- zap_cursor_t cursor;
- zap_attribute_t attr;
- int error;
-
- if (ds->ds_phys->ds_snapnames_zapobj == 0)
- return (ENOENT);
-
- zap_cursor_init(&cursor, ds->ds_dir->dd_pool->dp_meta_objset,
- ds->ds_phys->ds_snapnames_zapobj);
-
- error = zap_cursor_move_to_key(&cursor, snapname, MT_EXACT);
- if (error) {
- zap_cursor_fini(&cursor);
- return (error);
- }
-
- error = zap_cursor_retrieve(&cursor, &attr);
- if (error) {
- zap_cursor_fini(&cursor);
- return (error);
- }
-
- *idp = attr.za_first_integer;
- zap_cursor_fini(&cursor);
-
- return (0);
+ return dsl_dataset_snap_lookup(os->os_dsl_dataset, name, value);
}
int
}
thisobj = dd->dd_phys->dd_head_dataset_obj;
- attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP);
+ attr = kmem_alloc(sizeof (zap_attribute_t), KM_PUSHPAGE);
dp = dd->dd_pool;
/*
SET_BOOKMARK(&zb, ds->ds_object, ZB_ROOT_OBJECT,
ZB_ROOT_LEVEL, ZB_ROOT_BLKID);
- (void) dsl_read_nolock(NULL, dsl_dataset_get_spa(ds),
+ (void) arc_read(NULL, dsl_dataset_get_spa(ds),
&ds->ds_phys->ds_bp, NULL, NULL,
ZIO_PRIORITY_ASYNC_READ,
ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE,
}
#if defined(_KERNEL) && defined(HAVE_SPL)
+EXPORT_SYMBOL(dmu_objset_zil);
EXPORT_SYMBOL(dmu_objset_pool);
+EXPORT_SYMBOL(dmu_objset_ds);
+EXPORT_SYMBOL(dmu_objset_type);
EXPORT_SYMBOL(dmu_objset_name);
EXPORT_SYMBOL(dmu_objset_hold);
EXPORT_SYMBOL(dmu_objset_own);