Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[sfrench/cifs-2.6.git] / ipc / mq_sysctl.c

diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
index 0c09366b96f3a634365c945c1a2d987a5afbf55e..383d638340b8417c8e31f53b935f8e8d833b2707 100644 (file)
--- a/ipc/mq_sysctl.c
+++ b/ipc/mq_sysctl.c
@@ -13,15 +13,6 @@
 #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)
 {
@@ -31,16 +22,6 @@ 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)
-{
-       struct ctl_table mq_table;
-       memcpy(&mq_table, table, sizeof(mq_table));
-       mq_table.data = get_mq(table);
-
-       return proc_dointvec(&mq_table, write, buffer, lenp, ppos);
-}
-
 static int proc_mq_dointvec_minmax(ctl_table *table, int write,
        void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -52,15 +33,17 @@ static int proc_mq_dointvec_minmax(ctl_table *table, int write,
                                        lenp, ppos);
 }
 #else
-#define proc_mq_dointvec NULL
 #define proc_mq_dointvec_minmax NULL
 #endif
 
+static int msg_queues_limit_min = MIN_QUEUESMAX;
+static int msg_queues_limit_max = HARD_QUEUESMAX;
+
 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[] = {
        {
@@ -68,7 +51,9 @@ static ctl_table mq_sysctls[] = {
                .data           = &init_ipc_ns.mq_queues_max,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = proc_mq_dointvec,
+               .proc_handler   = proc_mq_dointvec_minmax,
+               .extra1         = &msg_queues_limit_min,
+               .extra2         = &msg_queues_limit_max,
        },
        {
                .procname       = "msg_max",
@@ -88,6 +73,24 @@ 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,
+       },
        {}
 };