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Illumos 4901 - zfs filesystem/snapshot limit leaks

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4901 zfs filesystem/snapshot limit leaks
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/4901
  https://github.com/illumos/illumos-gate/commit/adf3407

Ported by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Jerry Jelinek 2015-01-28 15:21:33 -08:00 committed by Brian Behlendorf
parent 83017311e4
commit a0c9a17aef
1 changed files with 11 additions and 5 deletions
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16
module/zfs/dsl_dir.c
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@ -512,7 +512,7 @@ dsl_dir_init_fs_ss_count(dsl_dir_t *dd, dmu_tx_t *tx)
zap_attribute_t *za; zap_attribute_t *za;
dsl_dataset_t *ds; 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(dsl_pool_config_held(dp));
ASSERT(dmu_tx_is_syncing(tx)); ASSERT(dmu_tx_is_syncing(tx));
@ -1751,7 +1751,7 @@ dsl_dir_rename_check(void *arg, dmu_tx_t *tx)
} }
if (dmu_tx_is_syncing(tx)) { 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)) { SPA_FEATURE_FS_SS_LIMIT)) {
/* /*
* Although this is the check function and we don't * Although this is the check function and we don't
@ -1780,8 +1780,11 @@ dsl_dir_rename_check(void *arg, dmu_tx_t *tx)
err = zap_lookup(os, dd->dd_object, err = zap_lookup(os, dd->dd_object,
DD_FIELD_FILESYSTEM_COUNT, sizeof (fs_cnt), 1, DD_FIELD_FILESYSTEM_COUNT, sizeof (fs_cnt), 1,
&fs_cnt); &fs_cnt);
if (err != ENOENT && err != 0) if (err != ENOENT && err != 0) {
dsl_dir_rele(newparent, FTAG);
dsl_dir_rele(dd, FTAG);
return (err); return (err);
}
/* /*
* have to add 1 for the filesystem itself that we're * have to add 1 for the filesystem itself that we're
@ -1792,9 +1795,12 @@ dsl_dir_rename_check(void *arg, dmu_tx_t *tx)
err = zap_lookup(os, dd->dd_object, err = zap_lookup(os, dd->dd_object,
DD_FIELD_SNAPSHOT_COUNT, sizeof (ss_cnt), 1, DD_FIELD_SNAPSHOT_COUNT, sizeof (ss_cnt), 1,
&ss_cnt); &ss_cnt);
if (err != ENOENT && err != 0) if (err != ENOENT && err != 0) {
dsl_dir_rele(newparent, FTAG);
dsl_dir_rele(dd, FTAG);
return (err); return (err);
} }
}
/* no rename into our descendant */ /* no rename into our descendant */
if (closest_common_ancestor(dd, newparent) == dd) { if (closest_common_ancestor(dd, newparent) == dd) {
@ -1844,7 +1850,7 @@ dsl_dir_rename_sync(void *arg, dmu_tx_t *tx)
* We already made sure the dd counts were initialized in the * We already made sure the dd counts were initialized in the
* check function. * check function.
*/ */
if (spa_feature_is_enabled(dp->dp_spa, if (spa_feature_is_active(dp->dp_spa,
SPA_FEATURE_FS_SS_LIMIT)) { SPA_FEATURE_FS_SS_LIMIT)) {
VERIFY0(zap_lookup(os, dd->dd_object, VERIFY0(zap_lookup(os, dd->dd_object,
DD_FIELD_FILESYSTEM_COUNT, sizeof (fs_cnt), 1, DD_FIELD_FILESYSTEM_COUNT, sizeof (fs_cnt), 1,