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 reblock.vol_no = -1; /* Don't select a volume */ 67 68 /* 69 * Restrict the localization domain if asked to do inodes or data, 70 * but not both. 71 */ 72 switch(flags & (HAMMER_IOC_DO_INODES|HAMMER_IOC_DO_DATA|HAMMER_IOC_DO_DIRS)) { 73 case HAMMER_IOC_DO_INODES: 74 reblock.key_beg.localization = HAMMER_LOCALIZE_INODE; 75 reblock.key_end.localization = HAMMER_LOCALIZE_INODE; 76 break; 77 case HAMMER_IOC_DO_DIRS: 78 case HAMMER_IOC_DO_DATA: 79 reblock.key_beg.localization = HAMMER_LOCALIZE_MISC; 80 reblock.key_end.localization = HAMMER_LOCALIZE_MISC; 81 break; 82 } 83 84 if (ac == 0) 85 reblock_usage(1); 86 filesystem = av[0]; 87 if (ac == 1) { 88 perc = 100; 89 } else { 90 perc = strtol(av[1], NULL, 0); 91 if (perc < 0 || perc > 100) 92 reblock_usage(1); 93 } 94 reblock.free_level = (int)((int64_t)perc * 95 HAMMER_BIGBLOCK_SIZE / 100); 96 reblock.free_level = HAMMER_BIGBLOCK_SIZE - reblock.free_level; 97 if (reblock.free_level < 0) 98 reblock.free_level = 0; 99 printf("reblock start %016jx:%04x\nfree level %d/%d\n", 100 (uintmax_t)reblock.key_beg.obj_id, 101 reblock.key_beg.localization, 102 reblock.free_level, 103 HAMMER_BIGBLOCK_SIZE); 104 105 fd = open(filesystem, O_RDONLY); 106 if (fd < 0) 107 err(1, "Unable to open %s", filesystem); 108 RunningIoctl = 1; 109 if (ioctl(fd, HAMMERIOC_REBLOCK, &reblock) < 0) { 110 printf("Reblock %s failed: %s\n", filesystem, strerror(errno)); 111 } else if (reblock.head.flags & HAMMER_IOC_HEAD_INTR) { 112 printf("Reblock %s interrupted by timer at %016jx:%04x\n", 113 filesystem, 114 (uintmax_t)reblock.key_cur.obj_id, 115 reblock.key_cur.localization); 116 if (CyclePath) { 117 hammer_set_cycle(&reblock.key_cur, 0); 118 } 119 } else { 120 if (CyclePath) 121 hammer_reset_cycle(); 122 printf("Reblock %s succeeded\n", filesystem); 123 } 124 RunningIoctl = 0; 125 close(fd); 126 printf("Reblocked:\n" 127 " %jd/%jd btree nodes\n" 128 " %jd/%jd btree bytes\n" 129 " %jd/%jd data elements\n" 130 " %jd/%jd data bytes\n", 131 (intmax_t)reblock.btree_moves, (intmax_t)reblock.btree_count, 132 (intmax_t)(reblock.btree_moves * 133 sizeof(struct hammer_node_ondisk)), 134 (intmax_t)(reblock.btree_count * 135 sizeof(struct hammer_node_ondisk)), 136 (intmax_t)reblock.data_moves, (intmax_t)reblock.data_count, 137 (intmax_t)reblock.data_byte_moves, 138 (intmax_t)reblock.data_byte_count 139 ); 140 } 141 142 static 143 void 144 reblock_usage(int exit_code) 145 { 146 fprintf(stderr, "hammer reblock <filesystem> [fill_percentage]\n"); 147 fprintf(stderr, "hammer reblock-btree <filesystem> [fill_percentage]\n"); 148 fprintf(stderr, "hammer reblock-inodes <filesystem> [fill_percentage]\n"); 149 fprintf(stderr, "hammer reblock-dirs <filesystem> [fill_percentage]\n"); 150 fprintf(stderr, "hammer reblock-data <filesystem> [fill_percentage]\n"); 151 fprintf(stderr, "By default 100%% is used.\n"); 152 exit(exit_code); 153 } 154 155