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3728855a0f
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2004, 2007 Lukas Ertl
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _GEOM_VINUM_RAID5_H_
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#define _GEOM_VINUM_RAID5_H_
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/*
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* A single RAID5 request usually needs more than one I/O transaction,
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* depending on the state of the associated subdisks and the direction of the
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* transaction (read or write).
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*/
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struct gv_raid5_packet {
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caddr_t data; /* Data buffer of this sub-request- */
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off_t length; /* Size of data buffer. */
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off_t lockbase; /* Deny access to our plex offset. */
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struct bio *bio; /* Pointer to the original bio. */
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struct bio *parity; /* The bio containing the parity data. */
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struct bio *waiting; /* A bio that need to wait for other bios. */
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TAILQ_HEAD(,gv_bioq) bits; /* List of subrequests. */
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TAILQ_ENTRY(gv_raid5_packet) list; /* Entry in plex's packet list. */
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};
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struct gv_raid5_packet * gv_raid5_start(struct gv_plex *, struct bio *,
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caddr_t, off_t, off_t);
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int gv_stripe_active(struct gv_plex *, struct bio *);
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#endif /* !_GEOM_VINUM_RAID5_H_ */
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