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63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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/*
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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 https://opensource.org/licenses/CDDL-1.0.
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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) 2014 by Chunwei Chen. All rights reserved.
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* Copyright (c) 2016, 2019 by Delphix. All rights reserved.
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*/
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#ifndef _ABD_OS_H
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#define _ABD_OS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct abd_scatter {
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uint_t abd_offset;
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uint_t abd_nents;
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struct scatterlist *abd_sgl;
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};
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struct abd_linear {
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void *abd_buf;
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struct scatterlist *abd_sgl; /* for LINEAR_PAGE */
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};
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typedef struct abd abd_t;
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typedef int abd_iter_page_func_t(struct page *, size_t, size_t, void *);
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int abd_iterate_page_func(abd_t *, size_t, size_t, abd_iter_page_func_t *,
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void *);
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/*
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* Linux ABD bio functions
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* Note: these are only needed to support vdev_classic. See comment in
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* vdev_disk.c.
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*/
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unsigned int abd_bio_map_off(struct bio *, abd_t *, unsigned int, size_t);
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unsigned long abd_nr_pages_off(abd_t *, unsigned int, size_t);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ABD_H */
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