diff options
Diffstat (limited to 'ipc/mq_sysctl.c')
| -rw-r--r-- | ipc/mq_sysctl.c | 45 |
1 files changed, 27 insertions, 18 deletions
diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c index 0c09366b96f..68d4e953762 100644 --- a/ipc/mq_sysctl.c +++ b/ipc/mq_sysctl.c @@ -13,17 +13,8 @@ #include <linux/ipc_namespace.h> #include <linux/sysctl.h> -/* - * Define the ranges various user-specified maximum values can - * be set to. - */ -#define MIN_MSGMAX 1 /* min value for msg_max */ -#define MAX_MSGMAX HARD_MSGMAX /* max value for msg_max */ -#define MIN_MSGSIZEMAX 128 /* min value for msgsize_max */ -#define MAX_MSGSIZEMAX (8192*128) /* max value for msgsize_max */ - #ifdef CONFIG_PROC_SYSCTL -static void *get_mq(ctl_table *table) +static void *get_mq(struct ctl_table *table) { char *which = table->data; struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns; @@ -31,8 +22,8 @@ static void *get_mq(ctl_table *table) return which; } -static int proc_mq_dointvec(ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) +static int proc_mq_dointvec(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) { struct ctl_table mq_table; memcpy(&mq_table, table, sizeof(mq_table)); @@ -41,7 +32,7 @@ static int proc_mq_dointvec(ctl_table *table, int write, return proc_dointvec(&mq_table, write, buffer, lenp, ppos); } -static int proc_mq_dointvec_minmax(ctl_table *table, int write, +static int proc_mq_dointvec_minmax(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { struct ctl_table mq_table; @@ -57,12 +48,12 @@ static int proc_mq_dointvec_minmax(ctl_table *table, int write, #endif static int msg_max_limit_min = MIN_MSGMAX; -static int msg_max_limit_max = MAX_MSGMAX; +static int msg_max_limit_max = HARD_MSGMAX; static int msg_maxsize_limit_min = MIN_MSGSIZEMAX; -static int msg_maxsize_limit_max = MAX_MSGSIZEMAX; +static int msg_maxsize_limit_max = HARD_MSGSIZEMAX; -static ctl_table mq_sysctls[] = { +static struct ctl_table mq_sysctls[] = { { .procname = "queues_max", .data = &init_ipc_ns.mq_queues_max, @@ -88,10 +79,28 @@ static ctl_table mq_sysctls[] = { .extra1 = &msg_maxsize_limit_min, .extra2 = &msg_maxsize_limit_max, }, + { + .procname = "msg_default", + .data = &init_ipc_ns.mq_msg_default, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_mq_dointvec_minmax, + .extra1 = &msg_max_limit_min, + .extra2 = &msg_max_limit_max, + }, + { + .procname = "msgsize_default", + .data = &init_ipc_ns.mq_msgsize_default, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_mq_dointvec_minmax, + .extra1 = &msg_maxsize_limit_min, + .extra2 = &msg_maxsize_limit_max, + }, {} }; -static ctl_table mq_sysctl_dir[] = { +static struct ctl_table mq_sysctl_dir[] = { { .procname = "mqueue", .mode = 0555, @@ -100,7 +109,7 @@ static ctl_table mq_sysctl_dir[] = { {} }; -static ctl_table mq_sysctl_root[] = { +static struct ctl_table mq_sysctl_root[] = { { .procname = "fs", .mode = 0555, |