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3d45fdd6c0
4951 ZFS administrative commands should use reserved space, not with ENOSPC Reviewed by: John Kennedy <john.kennedy@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Dan McDonald <danmcd@omniti.com> Approved by: Garrett D'Amore <garrett@damore.org> References: https://www.illumos.org/issues/4373 https://github.com/illumos/illumos-gate/commit/7d46dc6 Ported by: Brian Behlendorf <behlendorf1@llnl.gov>
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2012, 2014 by Delphix. All rights reserved.
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*/
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#ifndef _SYS_DSL_SYNCTASK_H
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#define _SYS_DSL_SYNCTASK_H
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#include <sys/txg.h>
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#include <sys/zfs_context.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct dsl_pool;
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typedef int (dsl_checkfunc_t)(void *, dmu_tx_t *);
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typedef void (dsl_syncfunc_t)(void *, dmu_tx_t *);
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typedef enum zfs_space_check {
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/*
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* Normal space check: if there is less than 3.2% free space,
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* the operation will fail. Operations which are logically
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* creating things should use this (e.g. "zfs create", "zfs snapshot").
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* User writes (via the ZPL / ZVOL) also fail at this point.
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*/
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ZFS_SPACE_CHECK_NORMAL,
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/*
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* Space check allows use of half the slop space. If there
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* is less than 1.6% free space, the operation will fail. Most
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* operations should use this (e.g. "zfs set", "zfs rename"),
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* because we want them to succeed even after user writes are failing,
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* so that they can be used as part of the space recovery process.
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*/
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ZFS_SPACE_CHECK_RESERVED,
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/*
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* No space check is performed. Only operations which we expect to
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* result in a net reduction in space should use this
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* (e.g. "zfs destroy". Setting quotas & reservations also uses
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* this because it needs to circumvent the quota/reservation checks).
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*
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* See also the comments above spa_slop_shift.
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*/
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ZFS_SPACE_CHECK_NONE,
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} zfs_space_check_t;
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typedef struct dsl_sync_task {
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txg_node_t dst_node;
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struct dsl_pool *dst_pool;
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uint64_t dst_txg;
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int dst_space;
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zfs_space_check_t dst_space_check;
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dsl_checkfunc_t *dst_checkfunc;
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dsl_syncfunc_t *dst_syncfunc;
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void *dst_arg;
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int dst_error;
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boolean_t dst_nowaiter;
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} dsl_sync_task_t;
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void dsl_sync_task_sync(dsl_sync_task_t *, dmu_tx_t *);
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int dsl_sync_task(const char *, dsl_checkfunc_t *,
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dsl_syncfunc_t *, void *, int, zfs_space_check_t);
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void dsl_sync_task_nowait(struct dsl_pool *, dsl_syncfunc_t *,
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void *, int, zfs_space_check_t, dmu_tx_t *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_DSL_SYNCTASK_H */
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