fbeddd60b7
4390 i/o errors when deleting filesystem/zvol can lead to space map corruption Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Dan McDonald <danmcd@omniti.com> Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com> Approved by: Dan McDonald <danmcd@omniti.com> References: https://www.illumos.org/issues/4390 https://github.com/illumos/illumos-gate/commit/7fd05ac Porting notes: Previous stack-reduction efforts in traverse_visitb() caused a fair number of un-mergable pieces of code. This patch should reduce its stack footprint a bit more. The new local bptree_entry_phys_t in bptree_add() is dynamically-allocated using kmem_zalloc() for the purpose of stack reduction. The new global zfs_free_leak_on_eio has been defined as an integer rather than a boolean_t as was the case with the related zfs_recover global. Also, zfs_free_leak_on_eio's definition has been inserted into zfs_debug.c for consistency with the existing definition of zfs_recover. Illumos placed it in spa_misc.c. Ported by: Tim Chase <tim@chase2k.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #2545
66 lines
1.9 KiB
C
66 lines
1.9 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) 2013 by Delphix. All rights reserved.
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*/
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#ifndef _SYS_BPTREE_H
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#define _SYS_BPTREE_H
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#include <sys/spa.h>
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#include <sys/zio.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct bptree_phys {
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uint64_t bt_begin;
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uint64_t bt_end;
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uint64_t bt_bytes;
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uint64_t bt_comp;
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uint64_t bt_uncomp;
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} bptree_phys_t;
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typedef struct bptree_entry_phys {
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blkptr_t be_bp;
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uint64_t be_birth_txg; /* only delete blocks born after this txg */
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zbookmark_t be_zb; /* holds traversal resume point if needed */
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} bptree_entry_phys_t;
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typedef int bptree_itor_t(void *arg, const blkptr_t *bp, dmu_tx_t *tx);
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uint64_t bptree_alloc(objset_t *os, dmu_tx_t *tx);
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int bptree_free(objset_t *os, uint64_t obj, dmu_tx_t *tx);
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boolean_t bptree_is_empty(objset_t *os, uint64_t obj);
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void bptree_add(objset_t *os, uint64_t obj, blkptr_t *bp, uint64_t birth_txg,
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uint64_t bytes, uint64_t comp, uint64_t uncomp, dmu_tx_t *tx);
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int bptree_iterate(objset_t *os, uint64_t obj, boolean_t free,
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bptree_itor_t func, void *arg, dmu_tx_t *tx);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_BPTREE_H */
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