1 /*
2 * Copyright (c) 2015 The DragonFly Project. All rights reserved.
3 *
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@dragonflybsd.org>
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
35 #include "hammer2.h"
36
37 int
cmd_bulkfree(const char * sel_path)38 cmd_bulkfree(const char *sel_path)
39 {
40 hammer2_ioc_bulkfree_t bfi;
41 int ecode = 0;
42 int fd;
43 int res;
44 size_t usermem;
45 size_t usermem_size = sizeof(usermem);
46
47 bzero(&bfi, sizeof(bfi));
48 usermem = 0;
49 if (sysctlbyname("hw.usermem", &usermem, &usermem_size, NULL, 0) == 0)
50 bfi.size = usermem / 16;
51 else
52 bfi.size = 0;
53 if (bfi.size < 8192 * 1024)
54 bfi.size = 8192 * 1024;
55
56 if (MemOpt)
57 bfi.size = (MemOpt + 8192 * 1024 - 1) & ~(8192 * 1024 - 1L);
58
59 if ((fd = hammer2_ioctl_handle(sel_path)) < 0)
60 return 1;
61 res = ioctl(fd, HAMMER2IOC_BULKFREE_SCAN, &bfi);
62 if (res) {
63 perror("ioctl");
64 ecode = 1;
65 }
66 return ecode;
67 }
68
69 #if 0
70 int
71 cmd_bulkfree_async(const char *sel_path)
72 {
73 hammer2_ioc_bulkfree_t bfi;
74 int ecode = 0;
75 int fd;
76 int res;
77
78 bzero(&bfi, sizeof(bfi));
79 bfi.size = 8192 * 1024;
80
81 if ((fd = hammer2_ioctl_handle(sel_path)) < 0)
82 return 1;
83 res = ioctl(fd, HAMMER2IOC_BULKFREE_ASYNC, &bfi);
84 if (res) {
85 perror("ioctl");
86 ecode = 1;
87 }
88 return ecode;
89 }
90 #endif
91