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 1.3 2008/05/05 20:34:52 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
;
62 perc
= strtol(av
[1], NULL
, 0);
63 if (perc
< 0 || perc
> 100)
66 reblock
.free_level
= perc
* (HAMMER_LARGEBLOCK_SIZE
/ 100);
67 reblock
.free_level
= HAMMER_LARGEBLOCK_SIZE
- reblock
.free_level
;
68 if (reblock
.free_level
< 128)
69 reblock
.free_level
= 128;
70 printf("reblock free level %d\n", reblock
.free_level
);
72 fd
= open(filesystem
, O_RDONLY
);
74 err(1, "Unable to open %s", filesystem
);
75 if (ioctl(fd
, HAMMERIOC_REBLOCK
, &reblock
) < 0) {
77 printf("Reblock %s interrupted by timer at %016llx\n",
78 filesystem
, reblock
.cur_obj_id
);
80 printf("Reblock %s failed: %s\n",
81 filesystem
, strerror(errno
));
84 printf("Reblock %s succeeded\n", filesystem
);
88 " %lld/%lld btree nodes\n"
89 " %lld/%lld records\n"
90 " %lld/%lld data elements\n"
91 " %lld/%lld data bytes\n",
92 reblock
.btree_moves
, reblock
.btree_count
,
93 reblock
.record_moves
, reblock
.record_count
,
94 reblock
.data_moves
, reblock
.data_count
,
95 reblock
.data_byte_moves
, reblock
.data_byte_count
101 reblock_usage(int exit_code
)
103 fprintf(stderr
, "hammer reblock <filesystem> [percentage] "