5d1f7fb647
3956 ::vdev -r should work with pipelines 3957 ztest should update the cachefile before killing itself 3958 multiple scans can lead to partial resilvering 3959 ddt entries are not always resilvered 3960 dsl_scan can skip over dedup-ed blocks if physical birth != logical birth 3961 freed gang blocks are not resilvered and can cause pool to suspend 3962 ztest should print out zfs debug buffer before exiting Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Approved by: Richard Lowe <richlowe@richlowe.net> References: https://www.illumos.org/issues/3956 https://www.illumos.org/issues/3957 https://www.illumos.org/issues/3958 https://www.illumos.org/issues/3959 https://www.illumos.org/issues/3960 https://www.illumos.org/issues/3961 https://www.illumos.org/issues/3962 illumos/illumos-gate@b4952e17e8 Ported-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Porting notes: 1. zfs_dbgmsg_print() is only used in userland. Since we do not have mdb on Linux, it does not make sense to make it available in the kernel. This means that a build failure will occur if any future kernel patch depends on it. However, that is unlikely given that this functionality was added to support zdb. 2. zfs_dbgmsg_print() is only invoked for -VVV or greater log levels. This preserves the existing behavior of minimal noise when running with -V, and -VV. 3. In vdev_config_generate() the call to nvlist_alloc() was not changed to fnvlist_alloc() because we must pass KM_PUSHPAGE in the txg_sync context.
145 lines
4.8 KiB
C
145 lines
4.8 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
|
|
* Copyright (c) 2013 by Delphix. All rights reserved.
|
|
*/
|
|
|
|
#ifndef _SYS_DSL_SCAN_H
|
|
#define _SYS_DSL_SCAN_H
|
|
|
|
#include <sys/zfs_context.h>
|
|
#include <sys/zio.h>
|
|
#include <sys/ddt.h>
|
|
#include <sys/bplist.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct objset;
|
|
struct dsl_dir;
|
|
struct dsl_dataset;
|
|
struct dsl_pool;
|
|
struct dmu_tx;
|
|
|
|
/*
|
|
* All members of this structure must be uint64_t, for byteswap
|
|
* purposes.
|
|
*/
|
|
typedef struct dsl_scan_phys {
|
|
uint64_t scn_func; /* pool_scan_func_t */
|
|
uint64_t scn_state; /* dsl_scan_state_t */
|
|
uint64_t scn_queue_obj;
|
|
uint64_t scn_min_txg;
|
|
uint64_t scn_max_txg;
|
|
uint64_t scn_cur_min_txg;
|
|
uint64_t scn_cur_max_txg;
|
|
uint64_t scn_start_time;
|
|
uint64_t scn_end_time;
|
|
uint64_t scn_to_examine; /* total bytes to be scanned */
|
|
uint64_t scn_examined; /* bytes scanned so far */
|
|
uint64_t scn_to_process;
|
|
uint64_t scn_processed;
|
|
uint64_t scn_errors; /* scan I/O error count */
|
|
uint64_t scn_ddt_class_max;
|
|
ddt_bookmark_t scn_ddt_bookmark;
|
|
zbookmark_t scn_bookmark;
|
|
uint64_t scn_flags; /* dsl_scan_flags_t */
|
|
} dsl_scan_phys_t;
|
|
|
|
#define SCAN_PHYS_NUMINTS (sizeof (dsl_scan_phys_t) / sizeof (uint64_t))
|
|
|
|
typedef enum dsl_scan_flags {
|
|
DSF_VISIT_DS_AGAIN = 1<<0,
|
|
} dsl_scan_flags_t;
|
|
|
|
/*
|
|
* Every pool will have one dsl_scan_t and this structure will contain
|
|
* in-memory information about the scan and a pointer to the on-disk
|
|
* representation (i.e. dsl_scan_phys_t). Most of the state of the scan
|
|
* is contained on-disk to allow the scan to resume in the event of a reboot
|
|
* or panic. This structure maintains information about the behavior of a
|
|
* running scan, some caching information, and how it should traverse the pool.
|
|
*
|
|
* The following members of this structure direct the behavior of the scan:
|
|
*
|
|
* scn_pausing - a scan that cannot be completed in a single txg or
|
|
* has exceeded its allotted time will need to pause.
|
|
* When this flag is set the scanner will stop traversing
|
|
* the pool and write out the current state to disk.
|
|
*
|
|
* scn_restart_txg - directs the scanner to either restart or start a
|
|
* a scan at the specified txg value.
|
|
*
|
|
* scn_done_txg - when a scan completes its traversal it will set
|
|
* the completion txg to the next txg. This is necessary
|
|
* to ensure that any blocks that were freed during
|
|
* the scan but have not yet been processed (i.e deferred
|
|
* frees) are accounted for.
|
|
*
|
|
* This structure also maintains information about deferred frees which are
|
|
* a special kind of traversal. Deferred free can exist in either a bptree or
|
|
* a bpobj structure. The scn_is_bptree flag will indicate the type of
|
|
* deferred free that is in progress. If the deferred free is part of an
|
|
* asynchronous destroy then the scn_async_destroying flag will be set.
|
|
*/
|
|
typedef struct dsl_scan {
|
|
struct dsl_pool *scn_dp;
|
|
|
|
boolean_t scn_pausing;
|
|
uint64_t scn_restart_txg;
|
|
uint64_t scn_done_txg;
|
|
uint64_t scn_sync_start_time;
|
|
zio_t *scn_zio_root;
|
|
|
|
/* for freeing blocks */
|
|
boolean_t scn_is_bptree;
|
|
boolean_t scn_async_destroying;
|
|
|
|
/* for debugging / information */
|
|
uint64_t scn_visited_this_txg;
|
|
|
|
dsl_scan_phys_t scn_phys;
|
|
} dsl_scan_t;
|
|
|
|
int dsl_scan_init(struct dsl_pool *dp, uint64_t txg);
|
|
void dsl_scan_fini(struct dsl_pool *dp);
|
|
void dsl_scan_sync(struct dsl_pool *, dmu_tx_t *);
|
|
int dsl_scan_cancel(struct dsl_pool *);
|
|
int dsl_scan(struct dsl_pool *, pool_scan_func_t);
|
|
void dsl_resilver_restart(struct dsl_pool *, uint64_t txg);
|
|
boolean_t dsl_scan_resilvering(struct dsl_pool *dp);
|
|
boolean_t dsl_dataset_unstable(struct dsl_dataset *ds);
|
|
void dsl_scan_ddt_entry(dsl_scan_t *scn, enum zio_checksum checksum,
|
|
ddt_entry_t *dde, dmu_tx_t *tx);
|
|
void dsl_scan_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx);
|
|
void dsl_scan_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx);
|
|
void dsl_scan_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2,
|
|
struct dmu_tx *tx);
|
|
boolean_t dsl_scan_active(dsl_scan_t *scn);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYS_DSL_SCAN_H */
|