| 1 | /*************************************************************************** |
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| 2 | * |
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| 3 | * Copyright (C) 2001 International Business Machines |
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| 4 | * All rights reserved. |
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| 5 | * |
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| 6 | * This file is part of the GPFS mmfslinux kernel module. |
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| 7 | * |
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| 8 | * Redistribution and use in source and binary forms, with or without |
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| 9 | * modification, are permitted provided that the following conditions |
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| 10 | * are met: |
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| 11 | * |
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| 12 | * 1. Redistributions of source code must retain the above copyright notice, |
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| 13 | * this list of conditions and the following disclaimer. |
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 15 | * notice, this list of conditions and the following disclaimer in the |
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| 16 | * documentation and/or other materials provided with the distribution. |
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| 17 | * 3. The name of the author may not be used to endorse or promote products |
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| 18 | * derived from this software without specific prior written |
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| 19 | * permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 22 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 23 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 24 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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| 26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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| 27 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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| 28 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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| 29 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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| 30 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 31 | * |
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| 32 | *************************************************************************** */ |
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| 33 | /* @(#)03 1.9 src/avs/fs/mmfs/ts/kernext/ibm-linux/cxiVFSStats-plat.h, mmfs, avs_rgpfs24, rgpfs240610b 10/17/02 21:21:48 */ |
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| 34 | |
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| 35 | #ifndef _h_cxiVFSStats_plat |
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| 36 | #define _h_cxiVFSStats_plat |
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| 37 | |
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| 38 | #ifndef _h_cxiVFSStats |
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| 39 | #error Platform header (XXX-plat.h) should not be included directly |
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| 40 | #endif |
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| 41 | |
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| 42 | /* |
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| 43 | * Gather statistics for VFS operations: |
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| 44 | * |
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| 45 | * Usage: |
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| 46 | * - Placing an instance of the VFS_STAT_START macro at the begining |
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| 47 | * of a function and VFS_STAT_STOP macro at the end of a function |
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| 48 | * will keep a count of how many times the function is called as well |
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| 49 | * as the total amount of time spent in the function (elapsed time |
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| 50 | * between entering and leaving the function). |
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| 51 | * - Placing an instance of the VFS_INC macro inside a function will |
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| 52 | * update a call count, but not keep any time statistics. |
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| 53 | * - Use the command "mmfsadm vfsstats ..." to control and display |
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| 54 | * vfs statistics: |
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| 55 | * mmfsadm vfsstats enable - turn on statistics gathering |
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| 56 | * mmfsadm vfsstats disable - turn off statistics gathering |
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| 57 | * mmfsadm vfsstats reset - reset all statistics counters |
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| 58 | * mmfsadm vfsstats show - display statistics |
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| 59 | * |
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| 60 | */ |
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| 61 | |
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| 62 | #ifndef _h_cxiVFSStats |
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| 63 | #error Platform header (XXX-plat.h) should not be included directly |
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| 64 | #endif |
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| 65 | |
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| 66 | #ifdef KCSTRACE |
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| 67 | #ifdef __cplusplus |
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| 68 | extern "C" { |
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| 69 | #endif |
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| 70 | void cxiKcsTraceInfo(int index, int value); |
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| 71 | #ifdef __cplusplus |
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| 72 | } |
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| 73 | #endif |
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| 74 | #endif |
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| 75 | |
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| 76 | #endif // _h_cxiVFSStats_plat |
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