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 1.5 2008/05/12 05:13:47 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, int flags)
47 struct hammer_ioc_reblock reblock;
48 const char *filesystem;
52 bzero(&reblock, sizeof(reblock));
53 reblock.beg_obj_id = hammer_get_cycle(HAMMER_MIN_OBJID);
54 reblock.end_obj_id = HAMMER_MAX_OBJID;
55 reblock.head.flags = flags & HAMMER_IOC_DO_FLAGS;
63 perc = strtol(av[1], NULL, 0);
64 if (perc < 0 || perc > 100)
67 reblock.free_level = (int)((int64_t)perc *
68 HAMMER_LARGEBLOCK_SIZE / 100);
69 reblock.free_level = HAMMER_LARGEBLOCK_SIZE - reblock.free_level;
70 if (reblock.free_level < 0)
71 reblock.free_level = 0;
72 printf("reblock free level %d\n", reblock.free_level);
74 fd = open(filesystem, O_RDONLY);
76 err(1, "Unable to open %s", filesystem);
77 if (ioctl(fd, HAMMERIOC_REBLOCK, &reblock) < 0) {
78 printf("Reblock %s failed: %s\n", filesystem, strerror(errno));
79 } else if (reblock.head.flags & HAMMER_IOC_HEAD_INTR) {
80 printf("Reblock %s interrupted by timer at %016llx\n",
81 filesystem, reblock.cur_obj_id);
83 hammer_set_cycle(reblock.cur_obj_id);
87 printf("Reblock %s succeeded\n", filesystem);
91 " %lld/%lld btree nodes\n"
92 " %lld/%lld records\n"
93 " %lld/%lld data elements\n"
94 " %lld/%lld data bytes\n",
95 reblock.btree_moves, reblock.btree_count,
96 reblock.record_moves, reblock.record_count,
97 reblock.data_moves, reblock.data_count,
98 reblock.data_byte_moves, reblock.data_byte_count
104 reblock_usage(int exit_code)
106 fprintf(stderr, "hammer reblock <filesystem> [percentage] "