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authormav <mav@FreeBSD.org>2016-03-21 00:16:42 +0000
committermav <mav@FreeBSD.org>2016-03-21 00:16:42 +0000
commit7ce73419509341aa3b07e2c5fdd9e37642ae233f (patch)
tree911218a5e6816b002be27c588bda1be86a32742a /sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c
parente8c59c3978b63d775c388972a9f93aad5eef1651 (diff)
downloadFreeBSD-src-7ce73419509341aa3b07e2c5fdd9e37642ae233f.zip
FreeBSD-src-7ce73419509341aa3b07e2c5fdd9e37642ae233f.tar.gz
MFC r296516: MFV r296515:
6536 zfs send: want a way to disable setting of DRR_FLAG_FREERECORDS Reviewed by: Anil Vijarnia <avijarnia@racktopsystems.com> Reviewed by: Kim Shrier <kshrier@racktopsystems.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Approved by: Dan McDonald <danmcd@omniti.com> Author: Andrew Stormont <astormont@racktopsystems.com> illumos/illumos-gate@880094b6062aebeec8eda6a8651757611c83b13e
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c')
-rw-r--r--sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c
index 00f52d6..d07319d 100644
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c
@@ -25,6 +25,7 @@
* Copyright (c) 2014, Joyent, Inc. All rights reserved.
* Copyright (c) 2012, Martin Matuska <mm@FreeBSD.org>. All rights reserved.
* Copyright 2014 HybridCluster. All rights reserved.
+ * Copyright 2016 RackTop Systems.
*/
#include <sys/dmu.h>
@@ -64,6 +65,12 @@
int zfs_send_corrupt_data = B_FALSE;
int zfs_send_queue_length = 16 * 1024 * 1024;
int zfs_recv_queue_length = 16 * 1024 * 1024;
+/* Set this tunable to FALSE to disable setting of DRR_FLAG_FREERECORDS */
+int zfs_send_set_freerecords_bit = B_TRUE;
+
+#ifdef _KERNEL
+TUNABLE_INT("vfs.zfs.send_set_freerecords_bit", &zfs_send_set_freerecords_bit);
+#endif
static char *dmu_recv_tag = "dmu_recv_tag";
const char *recv_clone_name = "%recv";
@@ -771,7 +778,8 @@ dmu_send_impl(void *tag, dsl_pool_t *dp, dsl_dataset_t *to_ds,
drr->drr_u.drr_begin.drr_toguid = dsl_dataset_phys(to_ds)->ds_guid;
if (dsl_dataset_phys(to_ds)->ds_flags & DS_FLAG_CI_DATASET)
drr->drr_u.drr_begin.drr_flags |= DRR_FLAG_CI_DATA;
- drr->drr_u.drr_begin.drr_flags |= DRR_FLAG_FREERECORDS;
+ if (zfs_send_set_freerecords_bit)
+ drr->drr_u.drr_begin.drr_flags |= DRR_FLAG_FREERECORDS;
if (ancestor_zb != NULL) {
drr->drr_u.drr_begin.drr_fromguid =
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