nrelease: Define BUILDING_NRELEASE_DPORTS when building packages.
[dragonfly.git] / sbin / hammer / cmd_reblock.c
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