*/
/*
* 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;
}
* permission checks for the starting dataset have already been
* performed in zfs_secpolicy_snapshot()
*/
-#ifdef HAVE_ZPL
if (sn->recursive && (err = zfs_secpolicy_snapshot_perms(name, CRED())))
return (err);
-#endif
err = dmu_objset_hold(name, sn, &os);
if (err != 0)
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
}
int
+dmu_snapshot_lookup(objset_t *os, const char *name, uint64_t *value)
+{
+ return dsl_dataset_snap_lookup(os->os_dsl_dataset, name, value);
+}
+
+int
dmu_dir_list_next(objset_t *os, int namelen, char *name,
uint64_t *idp, uint64_t *offp)
{
}
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);