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Source at commit fbf123cd4cc0c097fe9a99c90109ebb2a5e94a50 created 10 years 3 months ago. By Lars-Peter Clausen, dma: jz4740: Dequeue descriptor from active list before completing it | |
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1 | /* |
2 | * Copyright (C) 2007 IBM Corporation |
3 | * |
4 | * Author: Cedric Le Goater <clg@fr.ibm.com> |
5 | * |
6 | * This program is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU General Public License as |
8 | * published by the Free Software Foundation, version 2 of the |
9 | * License. |
10 | */ |
11 | |
12 | #include <linux/nsproxy.h> |
13 | #include <linux/ipc_namespace.h> |
14 | #include <linux/sysctl.h> |
15 | |
16 | #ifdef CONFIG_PROC_SYSCTL |
17 | static void *get_mq(struct ctl_table *table) |
18 | { |
19 | char *which = table->data; |
20 | struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns; |
21 | which = (which - (char *)&init_ipc_ns) + (char *)ipc_ns; |
22 | return which; |
23 | } |
24 | |
25 | static int proc_mq_dointvec(struct ctl_table *table, int write, |
26 | void __user *buffer, size_t *lenp, loff_t *ppos) |
27 | { |
28 | struct ctl_table mq_table; |
29 | memcpy(&mq_table, table, sizeof(mq_table)); |
30 | mq_table.data = get_mq(table); |
31 | |
32 | return proc_dointvec(&mq_table, write, buffer, lenp, ppos); |
33 | } |
34 | |
35 | static int proc_mq_dointvec_minmax(struct ctl_table *table, int write, |
36 | void __user *buffer, size_t *lenp, loff_t *ppos) |
37 | { |
38 | struct ctl_table mq_table; |
39 | memcpy(&mq_table, table, sizeof(mq_table)); |
40 | mq_table.data = get_mq(table); |
41 | |
42 | return proc_dointvec_minmax(&mq_table, write, buffer, |
43 | lenp, ppos); |
44 | } |
45 | #else |
46 | #define proc_mq_dointvec NULL |
47 | #define proc_mq_dointvec_minmax NULL |
48 | #endif |
49 | |
50 | static int msg_max_limit_min = MIN_MSGMAX; |
51 | static int msg_max_limit_max = HARD_MSGMAX; |
52 | |
53 | static int msg_maxsize_limit_min = MIN_MSGSIZEMAX; |
54 | static int msg_maxsize_limit_max = HARD_MSGSIZEMAX; |
55 | |
56 | static struct ctl_table mq_sysctls[] = { |
57 | { |
58 | .procname = "queues_max", |
59 | .data = &init_ipc_ns.mq_queues_max, |
60 | .maxlen = sizeof(int), |
61 | .mode = 0644, |
62 | .proc_handler = proc_mq_dointvec, |
63 | }, |
64 | { |
65 | .procname = "msg_max", |
66 | .data = &init_ipc_ns.mq_msg_max, |
67 | .maxlen = sizeof(int), |
68 | .mode = 0644, |
69 | .proc_handler = proc_mq_dointvec_minmax, |
70 | .extra1 = &msg_max_limit_min, |
71 | .extra2 = &msg_max_limit_max, |
72 | }, |
73 | { |
74 | .procname = "msgsize_max", |
75 | .data = &init_ipc_ns.mq_msgsize_max, |
76 | .maxlen = sizeof(int), |
77 | .mode = 0644, |
78 | .proc_handler = proc_mq_dointvec_minmax, |
79 | .extra1 = &msg_maxsize_limit_min, |
80 | .extra2 = &msg_maxsize_limit_max, |
81 | }, |
82 | { |
83 | .procname = "msg_default", |
84 | .data = &init_ipc_ns.mq_msg_default, |
85 | .maxlen = sizeof(int), |
86 | .mode = 0644, |
87 | .proc_handler = proc_mq_dointvec_minmax, |
88 | .extra1 = &msg_max_limit_min, |
89 | .extra2 = &msg_max_limit_max, |
90 | }, |
91 | { |
92 | .procname = "msgsize_default", |
93 | .data = &init_ipc_ns.mq_msgsize_default, |
94 | .maxlen = sizeof(int), |
95 | .mode = 0644, |
96 | .proc_handler = proc_mq_dointvec_minmax, |
97 | .extra1 = &msg_maxsize_limit_min, |
98 | .extra2 = &msg_maxsize_limit_max, |
99 | }, |
100 | {} |
101 | }; |
102 | |
103 | static struct ctl_table mq_sysctl_dir[] = { |
104 | { |
105 | .procname = "mqueue", |
106 | .mode = 0555, |
107 | .child = mq_sysctls, |
108 | }, |
109 | {} |
110 | }; |
111 | |
112 | static struct ctl_table mq_sysctl_root[] = { |
113 | { |
114 | .procname = "fs", |
115 | .mode = 0555, |
116 | .child = mq_sysctl_dir, |
117 | }, |
118 | {} |
119 | }; |
120 | |
121 | struct ctl_table_header *mq_register_sysctl_table(void) |
122 | { |
123 | return register_sysctl_table(mq_sysctl_root); |
124 | } |
125 |
Branches:
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javiroman/ks7010
jz-2.6.34
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9