/* $NetBSD: rf_dagflags.h,v 1.6 2019/07/11 03:49:51 msaitoh Exp $ */ /* * Copyright (c) 1995 Carnegie-Mellon University. * All rights reserved. * * Author: Mark Holland * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ /************************************************************************************** * * dagflags.h -- flags that can be given to DoAccess * I pulled these out of dag.h because routines that call DoAccess may need these flags, * but certainly do not need the declarations related to the DAG data structures. * **************************************************************************************/ #ifndef _RF__RF_DAGFLAGS_H_ #define _RF__RF_DAGFLAGS_H_ /* * Bitmasks for the "flags" parameter (RF_RaidAccessFlags_t) used * by DoAccess, SelectAlgorithm, and the DAG creation routines. * * If USE_DAG or USE_ASM is specified, neither the DAG nor the ASM * will be modified, which means that you can't SUPPRESS if you * specify USE_DAG. */ #define RF_DAG_FLAGS_NONE 0 /* no flags */ #define RF_DAG_SUPPRESS_LOCKS (1<<0) /* suppress all stripe locks in * the DAG */ #define RF_DAG_NONBLOCKING_IO (1<<3) /* cause DoAccess to be * non-blocking */ #define RF_DAG_ACCESS_COMPLETE (1<<4) /* the access is complete */ #define RF_DAG_DISPATCH_RETURNED (1<<5) /* used to handle the case * where the dag invokes no * I/O */ #endif /* !_RF__RF_DAGFLAGS_H_ */ |