X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Fdsl_prop.c;h=664ccff45d4a783b41dd6d5941426b486ae81ade;hb=9babb37438b58e77bad04e820d5702e15b79e6a6;hp=212acbbc5968848234e0f394c6dc3e483b0717ac;hpb=d164b2093561a9771db07346e6fffc9ca19427a2;p=zfs.git

diff --git a/module/zfs/dsl_prop.c b/module/zfs/dsl_prop.c
index 212acbb..664ccff 100644
--- a/module/zfs/dsl_prop.c
+++ b/module/zfs/dsl_prop.c
@@ -19,12 +19,10 @@
  * CDDL HEADER END
  */
 /*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
 #include <sys/dmu.h>
 #include <sys/dmu_objset.h>
 #include <sys/dmu_tx.h>
@@ -416,6 +414,34 @@ dsl_prop_set_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx)
 }
 
 void
+dsl_props_set_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx)
+{
+	dsl_dataset_t *ds = arg1;
+	nvlist_t *nvl = arg2;
+	nvpair_t *elem = NULL;
+
+	while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
+		struct prop_set_arg psa;
+
+		psa.name = nvpair_name(elem);
+
+		if (nvpair_type(elem) == DATA_TYPE_STRING) {
+			VERIFY(nvpair_value_string(elem,
+			    (char **)&psa.buf) == 0);
+			psa.intsz = 1;
+			psa.numints = strlen(psa.buf) + 1;
+		} else {
+			uint64_t intval;
+			VERIFY(nvpair_value_uint64(elem, &intval) == 0);
+			psa.intsz = sizeof (intval);
+			psa.numints = 1;
+			psa.buf = &intval;
+		}
+		dsl_prop_set_sync(ds, &psa, cr, tx);
+	}
+}
+
+void
 dsl_prop_set_uint64_sync(dsl_dir_t *dd, const char *name, uint64_t val,
     cred_t *cr, dmu_tx_t *tx)
 {
@@ -438,6 +464,7 @@ dsl_prop_set(const char *dsname, const char *propname,
     int intsz, int numints, const void *buf)
 {
 	dsl_dataset_t *ds;
+	uint64_t version;
 	int err;
 	struct prop_set_arg psa;
 
@@ -447,15 +474,19 @@ dsl_prop_set(const char *dsname, const char *propname,
 	 */
 	if (strlen(propname) >= ZAP_MAXNAMELEN)
 		return (ENAMETOOLONG);
-	if (intsz * numints >= ZAP_MAXVALUELEN)
-		return (E2BIG);
 
 	err = dsl_dataset_hold(dsname, FTAG, &ds);
 	if (err)
 		return (err);
 
+	version = spa_version(ds->ds_dir->dd_pool->dp_spa);
+	if (intsz * numints >= (version < SPA_VERSION_STMF_PROP ?
+	    ZAP_OLDMAXVALUELEN : ZAP_MAXVALUELEN)) {
+		dsl_dataset_rele(ds, FTAG);
+		return (E2BIG);
+	}
 	if (dsl_dataset_is_snapshot(ds) &&
-	    spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_SNAP_PROPS) {
+	    version < SPA_VERSION_SNAP_PROPS) {
 		dsl_dataset_rele(ds, FTAG);
 		return (ENOTSUP);
 	}
@@ -471,6 +502,50 @@ dsl_prop_set(const char *dsname, const char *propname,
 	return (err);
 }
 
+int
+dsl_props_set(const char *dsname, nvlist_t *nvl)
+{
+	dsl_dataset_t *ds;
+	uint64_t version;
+	nvpair_t *elem = NULL;
+	int err;
+
+	if (err = dsl_dataset_hold(dsname, FTAG, &ds))
+		return (err);
+	/*
+	 * Do these checks before the syncfunc, since it can't fail.
+	 */
+	version = spa_version(ds->ds_dir->dd_pool->dp_spa);
+	while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
+		if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) {
+			dsl_dataset_rele(ds, FTAG);
+			return (ENAMETOOLONG);
+		}
+		if (nvpair_type(elem) == DATA_TYPE_STRING) {
+			char *valstr;
+			VERIFY(nvpair_value_string(elem, &valstr) == 0);
+			if (strlen(valstr) >= (version <
+			    SPA_VERSION_STMF_PROP ?
+			    ZAP_OLDMAXVALUELEN : ZAP_MAXVALUELEN)) {
+				dsl_dataset_rele(ds, FTAG);
+				return (E2BIG);
+			}
+		}
+	}
+
+	if (dsl_dataset_is_snapshot(ds) &&
+	    version < SPA_VERSION_SNAP_PROPS) {
+		dsl_dataset_rele(ds, FTAG);
+		return (ENOTSUP);
+	}
+
+	err = dsl_sync_task_do(ds->ds_dir->dd_pool,
+	    NULL, dsl_props_set_sync, ds, nvl, 2);
+
+	dsl_dataset_rele(ds, FTAG);
+	return (err);
+}
+
 /*
  * Iterate over all properties for this dataset and return them in an nvlist.
  */