2 * Copyright (c) 2008 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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
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
34 * $DragonFly: src/sbin/hammer/cmd_reblock.c,v 1.1 2008/03/18 05:21:53 dillon Exp $
39 static void reblock_usage(int exit_code);
42 * reblock <filesystem> [compaction_precentage] (default 90%)
45 hammer_cmd_reblock(char **av, int ac)
47 struct hammer_ioc_reblock reblock;
48 const char *filesystem;
52 bzero(&reblock, sizeof(reblock));
53 reblock.beg_obj_id = HAMMER_MIN_OBJID;
54 reblock.end_obj_id = HAMMER_MAX_OBJID;
55 reblock.cur_obj_id = reblock.beg_obj_id;
63 perc = strtol(av[1], NULL, 0);
64 if (perc < 0 || perc > 100)
67 reblock.free_level = perc * (HAMMER_LARGEBLOCK_SIZE / 100);
68 reblock.free_level = HAMMER_LARGEBLOCK_SIZE - reblock.free_level;
69 if (reblock.free_level < 128)
70 reblock.free_level = 128;
71 printf("reblock free level %d\n", reblock.free_level);
73 fd = open(filesystem, O_RDONLY);
75 err(1, "Unable to open %s", filesystem);
76 if (ioctl(fd, HAMMERIOC_REBLOCK, &reblock) < 0)
77 printf("Reblock %s failed: %s\n", filesystem, strerror(errno));
79 printf("Reblock %s succeeded\n", filesystem);
82 " %lld/%lld btree nodes\n"
83 " %lld/%lld records\n"
84 " %lld/%lld data elements\n"
85 " %lld/%lld data bytes\n",
86 reblock.btree_moves, reblock.btree_count,
87 reblock.record_moves, reblock.record_count,
88 reblock.data_moves, reblock.data_count,
89 reblock.data_byte_moves, reblock.data_byte_count
95 reblock_usage(int exit_code)
97 fprintf(stderr, "hammer reblock <filesystem> [percentage] "