svn commit: r266914 - vendor-sys/illumos/dist/uts/common/fs/zfs

[Xin LI]

Author: delphij
Date: Sat May 31 00:58:34 2014
New Revision: 266914
URL: http://svnweb.freebsd.org/changeset/base/266914

Log:
  4901 zfs filesystem/snapshot limit leaks
  
  illumos/illumos-gate at adf340778b67ab4c04c186099a69e0a5435609c7

Modified:
  vendor-sys/illumos/dist/uts/common/fs/zfs/dsl_dir.c

Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/dsl_dir.c
==============================================================================
--- vendor-sys/illumos/dist/uts/common/fs/zfs/dsl_dir.c	Sat May 31 00:57:31 2014	(r266913)
+++ vendor-sys/illumos/dist/uts/common/fs/zfs/dsl_dir.c	Sat May 31 00:58:34 2014	(r266914)
@@ -484,7 +484,7 @@ dsl_dir_init_fs_ss_count(dsl_dir_t *dd, 
 	zap_attribute_t *za;
 	dsl_dataset_t *ds;
 
-	ASSERT(spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_FS_SS_LIMIT));
+	ASSERT(spa_feature_is_active(dp->dp_spa, SPA_FEATURE_FS_SS_LIMIT));
 	ASSERT(dsl_pool_config_held(dp));
 	ASSERT(dmu_tx_is_syncing(tx));
 
@@ -1710,7 +1710,7 @@ dsl_dir_rename_check(void *arg, dmu_tx_t
 	}
 
 	if (dmu_tx_is_syncing(tx)) {
-		if (spa_feature_is_enabled(dp->dp_spa,
+		if (spa_feature_is_active(dp->dp_spa,
 		    SPA_FEATURE_FS_SS_LIMIT)) {
 			/*
 			 * Although this is the check function and we don't
@@ -1738,8 +1738,11 @@ dsl_dir_rename_check(void *arg, dmu_tx_t
 			err = zap_lookup(os, dd->dd_object,
 			    DD_FIELD_FILESYSTEM_COUNT, sizeof (fs_cnt), 1,
 			    &fs_cnt);
-			if (err != ENOENT && err != 0)
+			if (err != ENOENT && err != 0) {
+				dsl_dir_rele(newparent, FTAG);
+				dsl_dir_rele(dd, FTAG);
 				return (err);
+			}
 
 			/*
 			 * have to add 1 for the filesystem itself that we're
@@ -1750,8 +1753,11 @@ dsl_dir_rename_check(void *arg, dmu_tx_t
 			err = zap_lookup(os, dd->dd_object,
 			    DD_FIELD_SNAPSHOT_COUNT, sizeof (ss_cnt), 1,
 			    &ss_cnt);
-			if (err != ENOENT && err != 0)
+			if (err != ENOENT && err != 0) {
+				dsl_dir_rele(newparent, FTAG);
+				dsl_dir_rele(dd, FTAG);
 				return (err);
+			}
 		}
 
 		/* no rename into our descendant */
@@ -1802,7 +1808,7 @@ dsl_dir_rename_sync(void *arg, dmu_tx_t 
 		 * We already made sure the dd counts were initialized in the
 		 * check function.
 		 */
-		if (spa_feature_is_enabled(dp->dp_spa,
+		if (spa_feature_is_active(dp->dp_spa,
 		    SPA_FEATURE_FS_SS_LIMIT)) {
 			VERIFY0(zap_lookup(os, dd->dd_object,
 			    DD_FIELD_FILESYSTEM_COUNT, sizeof (fs_cnt), 1,