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/fs | |
| 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/fs')
| -rw-r--r-- | include/sys/fs/zfs.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/sys/fs/zfs.h b/include/sys/fs/zfs.h index c8c7cebae..6bbf84346 100644 --- a/include/sys/fs/zfs.h +++ b/include/sys/fs/zfs.h @@ -26,6 +26,7 @@ * Copyright (c) 2013, 2017 Joyent, Inc. All rights reserved. * Copyright (c) 2014 Integros [integros.com] * Copyright (c) 2017 Datto Inc. + * Copyright (c) 2017, Intel Corporation. */ /* Portions Copyright 2010 Robert Milkowski */ @@ -181,6 +182,7 @@ typedef enum { ZFS_PROP_KEY_GUID, ZFS_PROP_KEYSTATUS, ZFS_PROP_REMAPTXG, /* not exposed to the user */ + ZFS_PROP_SPECIAL_SMALL_BLOCKS, ZFS_NUM_PROPS } zfs_prop_t; @@ -713,6 +715,7 @@ typedef struct zpool_load_policy { #define ZPOOL_CONFIG_MMP_TXG "mmp_txg" /* not stored on disk */ #define ZPOOL_CONFIG_MMP_HOSTNAME "mmp_hostname" /* not stored on disk */ #define ZPOOL_CONFIG_MMP_HOSTID "mmp_hostid" /* not stored on disk */ +#define ZPOOL_CONFIG_ALLOCATION_BIAS "alloc_bias" /* not stored on disk */ /* * The persistent vdev state is stored as separate values rather than a single @@ -759,6 +762,14 @@ typedef struct zpool_load_policy { #define VDEV_TOP_ZAP_POOL_CHECKPOINT_SM \ "com.delphix:pool_checkpoint_sm" +#define VDEV_TOP_ZAP_ALLOCATION_BIAS \ + "org.zfsonlinux:allocation_bias" + +/* vdev metaslab allocation bias */ +#define VDEV_ALLOC_BIAS_LOG "log" +#define VDEV_ALLOC_BIAS_SPECIAL "special" +#define VDEV_ALLOC_BIAS_DEDUP "dedup" + /* * This is needed in userland to report the minimum necessary device size. */ |