82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/*-
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* Copyright (c) 2007 Rohit Jalan (rohitj@purpe.com)
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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 unmodified, this list of conditions, and the following
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* 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _TMPFS_UMA_H
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#define _TMPFS_UMA_H
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#include <vm/uma.h>
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#define TMPFS_STRZONE_ZONECOUNT 7
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#define TMPFS_STRZONE_STARTLEN (1 << 4)
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struct tmpfs_mount;
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struct tmpfs_str_zone {
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uma_zone_t tsz_zone[TMPFS_STRZONE_ZONECOUNT];
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};
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void tmpfs_str_zone_create(struct tmpfs_str_zone *);
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void tmpfs_str_zone_destroy(struct tmpfs_str_zone *);
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static __inline char*
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tmpfs_str_zone_alloc(struct tmpfs_str_zone *tsz, int flags, size_t len)
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{
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size_t i, zlen;
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char *ptr;
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MPASS(len <= (TMPFS_STRZONE_STARTLEN << (TMPFS_STRZONE_ZONECOUNT-1)));
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i = 0;
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zlen = TMPFS_STRZONE_STARTLEN;
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while (len > zlen) {
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++i;
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zlen <<= 1;
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}
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ptr = (char *)uma_zalloc(tsz->tsz_zone[i], flags);
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return ptr;
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}
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static __inline void
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tmpfs_str_zone_free(struct tmpfs_str_zone *tsz, char *item, size_t len)
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{
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size_t i, zlen;
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MPASS(len <= (TMPFS_STRZONE_STARTLEN << (TMPFS_STRZONE_ZONECOUNT-1)));
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i = 0;
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zlen = TMPFS_STRZONE_STARTLEN;
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while (len > zlen) {
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++i;
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zlen <<= 1;
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}
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uma_zfree(tsz->tsz_zone[i], item);
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}
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#endif
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