9532ab7116
so that they know whether the allocation is supposed to be able to sleep or not. * Allow uma_zone constructors and initialation functions to return either success or error. Almost all of the ones in the tree currently return success unconditionally, but mbuf is a notable exception: the packet zone constructor wants to be able to fail if it cannot suballocate an mbuf cluster, and the mbuf allocators want to be able to fail in general in a MAC kernel if the MAC mbuf initializer fails. This fixes the panics people are seeing when they run out of memory for mbuf clusters. * Allow debug.nosleepwithlocks on WITNESS to be disabled, without changing the default. Both bmilekic and jeff have reviewed the changes made to make failable zone allocations work.
55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2002, Jeffrey Roberson <jeff@freebsd.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice unmodified, this list of conditions, and the following
|
|
* disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
*/
|
|
|
|
/*
|
|
*
|
|
* This file includes definitions, structures, prototypes, and inlines used
|
|
* when debugging users of the UMA interface.
|
|
*
|
|
*/
|
|
|
|
#ifndef VM_UMA_DBG_H
|
|
#define VM_UMA_DBG_H
|
|
|
|
int trash_ctor(void *mem, int size, void *arg, int flags);
|
|
void trash_dtor(void *mem, int size, void *arg);
|
|
int trash_init(void *mem, int size, int flags);
|
|
void trash_fini(void *mem, int size);
|
|
|
|
/* For use only by malloc */
|
|
int mtrash_ctor(void *mem, int size, void *arg, int flags);
|
|
void mtrash_dtor(void *mem, int size, void *arg);
|
|
int mtrash_init(void *mem, int size, int flags);
|
|
void mtrash_fini(void *mem, int size);
|
|
|
|
void uma_dbg_free(uma_zone_t zone, uma_slab_t slab, void *item);
|
|
void uma_dbg_alloc(uma_zone_t zone, uma_slab_t slab, void *item);
|
|
|
|
#endif /* VM_UMA_DBG_H */
|