diff options
| author | Don Brady <[email protected]> | 2018-09-05 19:33:36 -0600 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2018-09-05 18:33:36 -0700 |
| commit | cc99f275a28c43fe450a66a7544f73c4935f7361 (patch) | |
| tree | f867e1d2cbb550a047c0f87986831252c41a2fd9 /include/sys/spa.h | |
| parent | cfa37548ebc880580782b245f2d233ed540e7a01 (diff) | |
Pool allocation classes
Allocation Classes add the ability to have allocation classes in a
pool that are dedicated to serving specific block categories, such
as DDT data, metadata, and small file blocks. A pool can opt-in to
this feature by adding a 'special' or 'dedup' top-level VDEV.
Reviewed by: Pavel Zakharov <[email protected]>
Reviewed-by: Richard Laager <[email protected]>
Reviewed-by: Alek Pinchuk <[email protected]>
Reviewed-by: Håkan Johansson <[email protected]>
Reviewed-by: Andreas Dilger <[email protected]>
Reviewed-by: DHE <[email protected]>
Reviewed-by: Richard Elling <[email protected]>
Reviewed-by: Gregor Kopka <[email protected]>
Reviewed-by: Kash Pande <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed-by: Matthew Ahrens <[email protected]>
Signed-off-by: Don Brady <[email protected]>
Closes #5182
Diffstat (limited to 'include/sys/spa.h')
| -rw-r--r-- | include/sys/spa.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/sys/spa.h b/include/sys/spa.h index 82fe2c18c..b86c65557 100644 --- a/include/sys/spa.h +++ b/include/sys/spa.h @@ -20,13 +20,14 @@ */ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright (c) 2011, 2014 by Delphix. All rights reserved. + * Copyright (c) 2011, 2018 by Delphix. All rights reserved. * Copyright 2011 Nexenta Systems, Inc. All rights reserved. * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. * Copyright 2013 Saso Kiselkov. All rights reserved. * Copyright (c) 2014 Integros [integros.com] * Copyright 2017 Joyent, Inc. * Copyright (c) 2017 Datto Inc. + * Copyright (c) 2017, Intel Corporation. */ #ifndef _SYS_SPA_H @@ -976,6 +977,11 @@ extern uint64_t spa_version(spa_t *spa); extern boolean_t spa_deflate(spa_t *spa); extern metaslab_class_t *spa_normal_class(spa_t *spa); extern metaslab_class_t *spa_log_class(spa_t *spa); +extern metaslab_class_t *spa_special_class(spa_t *spa); +extern metaslab_class_t *spa_dedup_class(spa_t *spa); +extern metaslab_class_t *spa_preferred_class(spa_t *spa, uint64_t size, + dmu_object_type_t objtype, uint_t level, uint_t special_smallblk); + extern void spa_evicting_os_register(spa_t *, objset_t *os); extern void spa_evicting_os_deregister(spa_t *, objset_t *os); extern void spa_evicting_os_wait(spa_t *spa); @@ -1040,6 +1046,7 @@ extern void spa_set_missing_tvds(spa_t *spa, uint64_t missing); extern boolean_t spa_top_vdevs_spacemap_addressable(spa_t *spa); extern boolean_t spa_multihost(spa_t *spa); extern unsigned long spa_get_hostid(void); +extern void spa_activate_allocation_classes(spa_t *, dmu_tx_t *); extern int spa_mode(spa_t *spa); extern uint64_t zfs_strtonum(const char *str, char **nptr); |