c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-22 18:40:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

Illumos 5959 - clean up per-dataset feature count code

Browse Source 
5959 clean up per-dataset feature count code
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: George Wilson <george@delphix.com>
Reviewed by: Alex Reece <alex@delphix.com>
Approved by: Richard Lowe <richlowe@richlowe.net>

References:
  https://www.illumos.org/issues/5959
  https://github.com/illumos/illumos-gate/commit/ca0cc39

Porting notes:

illumos code doesn't check for feature_get_refcount() returning
ENOTSUP (which means feature is disabled) in zdb. zfsonlinux added
a check in https://github.com/zfsonlinux/zfs/commit/784652c
due to #3468. The check was reintroduced here.

Ported-by: Witaut Bajaryn <vitaut.bayaryn@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3965
This commit is contained in:
Matthew Ahrens
2015-07-24 09:53:55 -07:00
committed by Brian Behlendorf
parent 072484504f
commit 241b541574
11 changed files with 237 additions and 178 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/sys/dsl_dataset.h
+17 -5
View File
@@ -20,7 +20,7 @@
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2013 by Delphix. All rights reserved.
* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
* Copyright (c) 2013, Joyent, Inc. All rights reserved.
* Copyright (c) 2013 Steven Hartland. All rights reserved.
* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
@@ -38,6 +38,7 @@
#include <sys/zfs_context.h>
#include <sys/dsl_deadlist.h>
#include <sys/refcount.h>
#include <zfeature_common.h>
#ifdef __cplusplus
extern "C" {
@@ -145,8 +146,6 @@ typedef struct dsl_dataset {
/* only used in syncing context, only valid for non-snapshots: */
struct dsl_dataset *ds_prev;
uint64_t ds_bookmarks; /* DMU_OTN_ZAP_METADATA */
boolean_t ds_large_blocks;
boolean_t ds_need_large_blocks;
/* has internal locking: */
dsl_deadlist_t ds_deadlist;
@@ -185,6 +184,18 @@ typedef struct dsl_dataset {
kmutex_t ds_sendstream_lock;
list_t ds_sendstreams;
/*
* For ZFEATURE_FLAG_PER_DATASET features, set if this dataset
* uses this feature.
*/
uint8_t ds_feature_inuse[SPA_FEATURES];
/*
* Set if we need to activate the feature on this dataset this txg
* (used only in syncing context).
*/
uint8_t ds_feature_activation_needed[SPA_FEATURES];
/* Protected by ds_lock; keep at end of struct for better locality */
char ds_snapname[MAXNAMELEN];
} dsl_dataset_t;
@@ -264,8 +275,6 @@ int dsl_dataset_space_written(dsl_dataset_t *oldsnap, dsl_dataset_t *new,
int dsl_dataset_space_wouldfree(dsl_dataset_t *firstsnap, dsl_dataset_t *last,
uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
boolean_t dsl_dataset_is_dirty(dsl_dataset_t *ds);
int dsl_dataset_activate_large_blocks(const char *dsname);
void dsl_dataset_activate_large_blocks_sync_impl(uint64_t dsobj, dmu_tx_t *tx);
int dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf);
@@ -305,6 +314,9 @@ void dsl_dataset_set_refreservation_sync_impl(dsl_dataset_t *ds,
void dsl_dataset_zapify(dsl_dataset_t *ds, dmu_tx_t *tx);
int dsl_dataset_rollback(const char *fsname, void *owner, nvlist_t *result);
void dsl_dataset_deactivate_feature(uint64_t dsobj,
spa_feature_t f, dmu_tx_t *tx);
#ifdef ZFS_DEBUG
#define dprintf_ds(ds, fmt, ...) do { \
if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
include/zfeature_common.h
+13 -5
View File
@@ -20,7 +20,7 @@
*/
/*
* Copyright (c) 2013 by Delphix. All rights reserved.
* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
*/
@@ -55,15 +55,23 @@ typedef enum spa_feature {
#define SPA_FEATURE_DISABLED (-1ULL)
typedef enum zfeature_flags {
/* Can open pool readonly even if this feature is not supported. */
ZFEATURE_FLAG_READONLY_COMPAT = (1 << 0),
/* Is this feature necessary to read the MOS? */
ZFEATURE_FLAG_MOS = (1 << 1),
/* Activate this feature at the same time it is enabled. */
ZFEATURE_FLAG_ACTIVATE_ON_ENABLE = (1 << 2),
/* Each dataset has a field set if it has ever used this feature. */
ZFEATURE_FLAG_PER_DATASET = (1 << 3)
} zfeature_flags_t;
typedef struct zfeature_info {
spa_feature_t fi_feature;
const char *fi_uname; /* User-facing feature name */
const char *fi_guid; /* On-disk feature identifier */
const char *fi_desc; /* Feature description */
boolean_t fi_can_readonly; /* Can open pool readonly w/o support? */
boolean_t fi_mos; /* Is the feature necessary to read the MOS? */
/* Activate this feature at the same time it is enabled */
boolean_t fi_activate_on_enable;
zfeature_flags_t fi_flags;
/* array of dependencies, terminated by SPA_FEATURE_NONE */
const spa_feature_t *fi_depends;
} zfeature_info_t;