kernel - Add MNTK_NOMSYNC and OBJ_NOMSYNC
[dragonfly.git] / sbin / hammer / cmd_reblock.c
blob8c9c1f2a6e8dacce30ad509daccc3a0c08681a62
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:
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.
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.
34 * $DragonFly: src/sbin/hammer/cmd_reblock.c,v 1.11 2008/07/16 00:53:48 thomas Exp $
37 #include "hammer.h"
39 static void reblock_usage(int exit_code);
42 * reblock <filesystem> [fill_percentage] (default 100%)
44 void
45 hammer_cmd_reblock(char **av, int ac, int flags)
47 struct hammer_ioc_reblock reblock;
48 const char *filesystem;
49 int fd;
50 int perc;
52 if (TimeoutOpt > 0)
53 alarm(TimeoutOpt);
55 bzero(&reblock, sizeof(reblock));
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);
61 reblock.key_end.localization = HAMMER_MAX_LOCALIZATION;
62 reblock.key_end.obj_id = HAMMER_MAX_OBJID;
64 reblock.head.flags = flags & HAMMER_IOC_DO_FLAGS;
67 * Restrict the localization domain if asked to do inodes or data,
68 * but not both.
70 switch(flags & (HAMMER_IOC_DO_INODES|HAMMER_IOC_DO_DATA|HAMMER_IOC_DO_DIRS)) {
71 case HAMMER_IOC_DO_INODES:
72 reblock.key_beg.localization = HAMMER_LOCALIZE_INODE;
73 reblock.key_end.localization = HAMMER_LOCALIZE_INODE;
74 break;
75 case HAMMER_IOC_DO_DIRS:
76 case HAMMER_IOC_DO_DATA:
77 reblock.key_beg.localization = HAMMER_LOCALIZE_MISC;
78 reblock.key_end.localization = HAMMER_LOCALIZE_MISC;
79 break;
82 if (ac == 0)
83 reblock_usage(1);
84 filesystem = av[0];
85 if (ac == 1) {
86 perc = 100;
87 } else {
88 perc = strtol(av[1], NULL, 0);
89 if (perc < 0 || perc > 100)
90 reblock_usage(1);
92 reblock.free_level = (int)((int64_t)perc *
93 HAMMER_LARGEBLOCK_SIZE / 100);
94 reblock.free_level = HAMMER_LARGEBLOCK_SIZE - reblock.free_level;
95 if (reblock.free_level < 0)
96 reblock.free_level = 0;
97 printf("reblock start %016jx:%04x free level %d\n",
98 (uintmax_t)reblock.key_beg.obj_id,
99 reblock.key_beg.localization,
100 reblock.free_level);
102 fd = open(filesystem, O_RDONLY);
103 if (fd < 0)
104 err(1, "Unable to open %s", filesystem);
105 RunningIoctl = 1;
106 if (ioctl(fd, HAMMERIOC_REBLOCK, &reblock) < 0) {
107 printf("Reblock %s failed: %s\n", filesystem, strerror(errno));
108 } else if (reblock.head.flags & HAMMER_IOC_HEAD_INTR) {
109 printf("Reblock %s interrupted by timer at %016jx:%04x\n",
110 filesystem,
111 (uintmax_t)reblock.key_cur.obj_id,
112 reblock.key_cur.localization);
113 if (CyclePath) {
114 hammer_set_cycle(&reblock.key_cur, 0);
116 } else {
117 if (CyclePath)
118 hammer_reset_cycle();
119 printf("Reblock %s succeeded\n", filesystem);
121 RunningIoctl = 0;
122 close(fd);
123 printf("Reblocked:\n"
124 " %jd/%jd btree nodes\n"
125 " %jd/%jd data elements\n"
126 " %jd/%jd data bytes\n",
127 (intmax_t)reblock.btree_moves, (intmax_t)reblock.btree_count,
128 (intmax_t)reblock.data_moves, (intmax_t)reblock.data_count,
129 (intmax_t)reblock.data_byte_moves,
130 (intmax_t)reblock.data_byte_count
134 static
135 void
136 reblock_usage(int exit_code)
138 fprintf(stderr, "hammer reblock <filesystem> [fill_percentage]\n");
139 fprintf(stderr, "hammer reblock-btree <filesystem> [fill_percentage]\n");
140 fprintf(stderr, "hammer reblock-inodes <filesystem> [fill_percentage]\n");
141 fprintf(stderr, "hammer reblock-dirs <filesystem> [fill_percentage]\n");
142 fprintf(stderr, "hammer reblock-data <filesystem> [fill_percentage]\n");
143 fprintf(stderr, "By default 100%% is used.\n");
144 exit(exit_code);