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.obj_id = HAMMER_MIN_OBJID; 58 reblock.key_end.obj_id = HAMMER_MAX_OBJID; 59 hammer_get_cycle(&reblock.key_beg, NULL); 60 61 reblock.head.flags = flags & HAMMER_IOC_DO_FLAGS; 62 reblock.allpfs = AllPFS; 63 reblock.vol_no = -1; /* Don't select a volume */ 64 65 /* 66 * Restrict the localization domain if asked to do inodes or data, 67 * but not both. Note that using INODE or MISC for localization 68 * adds a limitation to reblock range of B-Tree node, if BTREE is 69 * used with INODES or (DATA and/or DIRS) 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_DATA: 77 case HAMMER_IOC_DO_DIRS: 78 case HAMMER_IOC_DO_DATA | HAMMER_IOC_DO_DIRS: 79 reblock.key_beg.localization = HAMMER_LOCALIZE_MISC; 80 reblock.key_end.localization = HAMMER_LOCALIZE_MISC; 81 break; 82 default: 83 reblock.key_beg.localization = HAMMER_MIN_LOCALIZATION; 84 reblock.key_end.localization = HAMMER_MAX_LOCALIZATION; 85 break; 86 } 87 88 if (ac == 0) { 89 reblock_usage(1); 90 /* not reached */ 91 } 92 filesystem = av[0]; 93 if (ac == 1) { 94 perc = 100; 95 } else { 96 perc = strtol(av[1], NULL, 0); 97 if (perc < 0 || perc > 100) { 98 reblock_usage(1); 99 /* not reached */ 100 } 101 } 102 reblock.free_level = (int)((int64_t)perc * 103 HAMMER_BIGBLOCK_SIZE / 100); 104 reblock.free_level = HAMMER_BIGBLOCK_SIZE - reblock.free_level; 105 if (reblock.free_level < 0) 106 reblock.free_level = 0; 107 printf("reblock start %016jx:%04x\nfree level %d/%d\n", 108 (uintmax_t)reblock.key_beg.obj_id, 109 reblock.key_beg.localization, 110 reblock.free_level, 111 HAMMER_BIGBLOCK_SIZE); 112 113 fd = open(filesystem, O_RDONLY); 114 if (fd < 0) { 115 err(1, "Unable to open %s", filesystem); 116 /* not reached */ 117 } 118 RunningIoctl = 1; 119 if (ioctl(fd, HAMMERIOC_REBLOCK, &reblock) < 0) { 120 printf("Reblock %s failed: %s\n", filesystem, strerror(errno)); 121 } else if (reblock.head.flags & HAMMER_IOC_HEAD_INTR) { 122 printf("Reblock %s interrupted by timer at %016jx:%04x\n", 123 filesystem, 124 (uintmax_t)reblock.key_cur.obj_id, 125 reblock.key_cur.localization); 126 if (CyclePath) 127 hammer_set_cycle(&reblock.key_cur, 0); 128 } else { 129 if (CyclePath) 130 hammer_reset_cycle(); 131 printf("Reblock %s succeeded\n", filesystem); 132 } 133 RunningIoctl = 0; 134 close(fd); 135 printf("Reblocked:\n" 136 " %jd/%jd B-Tree nodes\n" 137 " %jd/%jd B-Tree bytes\n" 138 " %jd/%jd data elements\n" 139 " %jd/%jd data bytes\n", 140 (intmax_t)reblock.btree_moves, (intmax_t)reblock.btree_count, 141 (intmax_t)(reblock.btree_moves * 142 sizeof(struct hammer_node_ondisk)), 143 (intmax_t)(reblock.btree_count * 144 sizeof(struct hammer_node_ondisk)), 145 (intmax_t)reblock.data_moves, (intmax_t)reblock.data_count, 146 (intmax_t)reblock.data_byte_moves, 147 (intmax_t)reblock.data_byte_count 148 ); 149 } 150 151 static 152 void 153 reblock_usage(int exit_code) 154 { 155 fprintf(stderr, "hammer reblock <filesystem> [fill_percentage]\n"); 156 fprintf(stderr, "hammer reblock-btree <filesystem> [fill_percentage]\n"); 157 fprintf(stderr, "hammer reblock-inodes <filesystem> [fill_percentage]\n"); 158 fprintf(stderr, "hammer reblock-dirs <filesystem> [fill_percentage]\n"); 159 fprintf(stderr, "hammer reblock-data <filesystem> [fill_percentage]\n"); 160 fprintf(stderr, "By default 100%% is used.\n"); 161 exit(exit_code); 162 } 163 164