Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | /* * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * Further, this software is distributed without any warranty that it is * free of the rightful claim of any third person regarding infringement * or the like. Any license provided herein, whether implied or * otherwise, applies only to this software file. Patent licenses, if * any, provided herein do not apply to combinations of this program with * other software, or any other product whatsoever. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc., 59 * Temple Place - Suite 330, Boston MA 02111-1307, USA. * * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, * Mountain View, CA 94043, or: * * http://www.sgi.com * * For further information regarding this notice, see: * * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ */ #ifndef __XFS_SUPPORT_KTRACE_H__ #define __XFS_SUPPORT_KTRACE_H__ /* * Trace buffer entry structure. */ typedef struct ktrace_entry { void *val[16]; } ktrace_entry_t; /* * Trace buffer header structure. */ typedef struct ktrace { lock_t kt_lock; /* mutex to guard counters */ int kt_nentries; /* number of entries in trace buf */ int kt_index; /* current index in entries */ int kt_rollover; ktrace_entry_t *kt_entries; /* buffer of entries */ } ktrace_t; /* * Trace buffer snapshot structure. */ typedef struct ktrace_snap { int ks_start; /* kt_index at time of snap */ int ks_index; /* current index */ } ktrace_snap_t; /* * Exported interfaces. */ extern ktrace_t *ktrace_alloc(int, int); #if (defined(DEBUG) || defined(CONFIG_XFS_VNODE_TRACING)) extern void ktrace_init(int zentries); extern void ktrace_uninit(void); extern void ktrace_free(ktrace_t *); extern void ktrace_enter( ktrace_t *, void *, void *, void *, void *, void *, void *, void *, void *, void *, void *, void *, void *, void *, void *, void *, void *); extern ktrace_entry_t *ktrace_first(ktrace_t *, ktrace_snap_t *); extern int ktrace_nentries(ktrace_t *); extern ktrace_entry_t *ktrace_next(ktrace_t *, ktrace_snap_t *); extern ktrace_entry_t *ktrace_skip(ktrace_t *, int, ktrace_snap_t *); #else #define ktrace_free(ktp) #define ktrace_enter(ktp,v0,v1,v2,v3,v4,v5,v6,v7,v8,v9,v10,v11,v12,v13,v14,v15) #endif #endif /* __XFS_SUPPORT_KTRACE_H__ */ |