1 /* 2 * Copyright (c) 2008 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/sbin/hammer/cmd_reblock.c,v 1.11 2008/07/16 00:53:48 thomas Exp $ 35 */ 36 37 #include "hammer.h" 38 39 static void reblock_usage(int exit_code); 40 41 /* 42 * reblock <filesystem> [fill_percentage] (default 100%) 43 */ 44 void 45 hammer_cmd_reblock(char **av, int ac, int flags) 46 { 47 struct hammer_ioc_reblock reblock; 48 const char *filesystem; 49 int fd; 50 int perc; 51 52 if (TimeoutOpt > 0) 53 alarm(TimeoutOpt); 54 55 bzero(&reblock, sizeof(reblock)); 56 57 reblock.key_beg.localization = HAMMER_MIN_LOCALIZATION; 58 reblock.key_beg.obj_id = HAMMER_MIN_OBJID; 59 hammer_get_cycle(&reblock.key_beg, NULL); 60 61 reblock.key_end.localization = HAMMER_MAX_LOCALIZATION; 62 reblock.key_end.obj_id = HAMMER_MAX_OBJID; 63 64 reblock.head.flags = flags & HAMMER_IOC_DO_FLAGS; 65 reblock.allpfs = AllPFS; 66 67 /* 68 * Restrict the localization domain if asked to do inodes or data, 69 * but not both. 70 */ 71 switch(flags & (HAMMER_IOC_DO_INODES|HAMMER_IOC_DO_DATA|HAMMER_IOC_DO_DIRS)) { 72 case HAMMER_IOC_DO_INODES: 73 reblock.key_beg.localization = HAMMER_LOCALIZE_INODE; 74 reblock.key_end.localization = HAMMER_LOCALIZE_INODE; 75 break; 76 case HAMMER_IOC_DO_DIRS: 77 case HAMMER_IOC_DO_DATA: 78 reblock.key_beg.localization = HAMMER_LOCALIZE_MISC; 79 reblock.key_end.localization = HAMMER_LOCALIZE_MISC; 80 break; 81 } 82 83 if (ac == 0) 84 reblock_usage(1); 85 filesystem = av[0]; 86 if (ac == 1) { 87 perc = 100; 88 } else { 89 perc = strtol(av[1], NULL, 0); 90 if (perc < 0 || perc > 100) 91 reblock_usage(1); 92 } 93 reblock.free_level = (int)((int64_t)perc * 94 HAMMER_BIGBLOCK_SIZE / 100); 95 reblock.free_level = HAMMER_BIGBLOCK_SIZE - reblock.free_level; 96 if (reblock.free_level < 0) 97 reblock.free_level = 0; 98 printf("reblock start %016jx:%04x\nfree level %d/%d\n", 99 (uintmax_t)reblock.key_beg.obj_id, 100 reblock.key_beg.localization, 101 reblock.free_level, 102 HAMMER_BIGBLOCK_SIZE); 103 104 fd = open(filesystem, O_RDONLY); 105 if (fd < 0) 106 err(1, "Unable to open %s", filesystem); 107 RunningIoctl = 1; 108 if (ioctl(fd, HAMMERIOC_REBLOCK, &reblock) < 0) { 109 printf("Reblock %s failed: %s\n", filesystem, strerror(errno)); 110 } else if (reblock.head.flags & HAMMER_IOC_HEAD_INTR) { 111 printf("Reblock %s interrupted by timer at %016jx:%04x\n", 112 filesystem, 113 (uintmax_t)reblock.key_cur.obj_id, 114 reblock.key_cur.localization); 115 if (CyclePath) { 116 hammer_set_cycle(&reblock.key_cur, 0); 117 } 118 } else { 119 if (CyclePath) 120 hammer_reset_cycle(); 121 printf("Reblock %s succeeded\n", filesystem); 122 } 123 RunningIoctl = 0; 124 close(fd); 125 printf("Reblocked:\n" 126 " %jd/%jd btree nodes\n" 127 " %jd/%jd data elements\n" 128 " %jd/%jd data bytes\n", 129 (intmax_t)reblock.btree_moves, (intmax_t)reblock.btree_count, 130 (intmax_t)reblock.data_moves, (intmax_t)reblock.data_count, 131 (intmax_t)reblock.data_byte_moves, 132 (intmax_t)reblock.data_byte_count 133 ); 134 } 135 136 static 137 void 138 reblock_usage(int exit_code) 139 { 140 fprintf(stderr, "hammer reblock <filesystem> [fill_percentage]\n"); 141 fprintf(stderr, "hammer reblock-btree <filesystem> [fill_percentage]\n"); 142 fprintf(stderr, "hammer reblock-inodes <filesystem> [fill_percentage]\n"); 143 fprintf(stderr, "hammer reblock-dirs <filesystem> [fill_percentage]\n"); 144 fprintf(stderr, "hammer reblock-data <filesystem> [fill_percentage]\n"); 145 fprintf(stderr, "By default 100%% is used.\n"); 146 exit(exit_code); 147 } 148 149