path: root/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h
diff options
authorAlexander Motin <mav@FreeBSD.org>2018-03-28 22:01:27 +0000
committerAlexander Motin <mav@FreeBSD.org>2018-03-28 22:01:27 +0000
commit0b0c76bc58f1ea92571ef1c9ec7596459426ec31 (patch)
tree63570fbbc435e29786a767d591876db77fdf4ee1 /sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h
parent4bada7a0a206974294fa26efb81e9eba1d0bc895 (diff)
parentbce155015b3989c8a43519fc187ac469cf518336 (diff)
MFV r331695, 331700: 9166 zfs storage pool checkpoint
illumos/illumos-gate@8671400134a11c848244896ca51a7db4d0f69da4 The idea of Storage Pool Checkpoint (aka zpool checkpoint) deals with exactly that. It can be thought of as a “pool-wide snapshot” (or a variation of extreme rewind that doesn’t corrupt your data). It remembers the entire state of the pool at the point that it was taken and the user can revert back to it later or discard it. Its generic use case is an administrator that is about to perform a set of destructive actions to ZFS as part of a critical procedure. She takes a checkpoint of the pool before performing the actions, then rewinds back to it if one of them fails or puts the pool into an unexpected state. Otherwise, she discards it. With the assumption that no one else is making modifications to ZFS, she basically wraps all these actions into a “high-level transaction”. Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: John Kennedy <john.kennedy@delphix.com> Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Approved by: Richard Lowe <richlowe@richlowe.net> Author: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com>
Notes: svn path=/head/; revision=331701
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h')
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h
index 1601bf8fe339..8de77532ee75 100644
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h
@@ -20,7 +20,7 @@
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
+ * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
@@ -69,8 +69,8 @@ int metaslab_alloc(spa_t *, metaslab_class_t *, uint64_t,
int metaslab_alloc_dva(spa_t *, metaslab_class_t *, uint64_t,
dva_t *, int, dva_t *, uint64_t, int, zio_alloc_list_t *);
void metaslab_free(spa_t *, const blkptr_t *, uint64_t, boolean_t);
-void metaslab_free_concrete(vdev_t *, uint64_t, uint64_t, uint64_t);
-void metaslab_free_dva(spa_t *, const dva_t *, uint64_t);
+void metaslab_free_concrete(vdev_t *, uint64_t, uint64_t, boolean_t);
+void metaslab_free_dva(spa_t *, const dva_t *, boolean_t);
void metaslab_free_impl_cb(uint64_t, vdev_t *, uint64_t, uint64_t, void *);
void metaslab_unalloc_dva(spa_t *, const dva_t *, uint64_t);
int metaslab_claim(spa_t *, const blkptr_t *, uint64_t);