static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
size_t lenp_bef = *lenp;
int oldval;
int rc;
memcpy(&ipc_table, table, sizeof(ipc_table));
ipc_table.data = get_ipc(table);
oldval = *((int *)(ipc_table.data));
rc = proc_dointvec_minmax(&ipc_table, write, buffer, lenp, ppos);
if (write && !rc && lenp_bef == *lenp) {
int newval = *((int *)(ipc_table.data));
/*
*/
if (newval != oldval)
ipc_auto_callback(newval);
}
return rc;
}
static int proc_ipcauto_dointvec_minmax(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
size_t lenp_bef = *lenp;
int oldval;
int rc;
memcpy(&ipc_table, table, sizeof(ipc_table));
ipc_table.data = get_ipc(table);
oldval = *((int *)(ipc_table.data));
rc = proc_dointvec_minmax(&ipc_table, write, buffer, lenp, ppos);
if (write && !rc && lenp_bef == *lenp) {
int newval = *((int *)(ipc_table.data));
/*
* The file "auto_msgmni" has correctly been set.
* React by (un)registering the corresponding tunable, if the
* value has changed.
*/
if (newval != oldval)
ipc_auto_callback(newval);
}
return rc;
}
static int proc_ipc_dointvec(ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
memcpy(&ipc_table, table, sizeof(ipc_table));
ipc_table.data = get_ipc(table);
return proc_dointvec(&ipc_table, write, filp, buffer, lenp, ppos);
}
static int proc_ipc_doulongvec_minmax(ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
memcpy(&ipc_table, table, sizeof(ipc_table));
ipc_table.data = get_ipc(table);
return proc_doulongvec_minmax(&ipc_table, write, buffer,
lenp, ppos);
}
static int proc_ipc_callback_dointvec(ctl_table *table, int write,
struct file *filp, void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
size_t lenp_bef = *lenp;
int rc;
memcpy(&ipc_table, table, sizeof(ipc_table));
ipc_table.data = get_ipc(table);
rc = proc_dointvec(&ipc_table, write, filp, buffer, lenp, ppos);
if (write && !rc && lenp_bef == *lenp)
tunable_set_callback(*((int *)(ipc_table.data)));
return rc;
}
static int sysctl_ipc_registered_data(ctl_table *table, int __user *name,
int nlen, void __user *oldval, size_t __user *oldlenp,
void __user *newval, size_t newlen)
{
int rc;
rc = sysctl_ipc_data(table, name, nlen, oldval, oldlenp, newval,
newlen);
if (newval && newlen && rc > 0) {
/*
* Tunable has successfully been changed from userland
*/
int *data = get_ipc(table);
tunable_set_callback(*data);
}
return rc;
}
static int proc_ipc_callback_dointvec(ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
size_t lenp_bef = *lenp;
int rc;
memcpy(&ipc_table, table, sizeof(ipc_table));
ipc_table.data = get_ipc(table);
rc = proc_dointvec(&ipc_table, write, buffer, lenp, ppos);
if (write && !rc && lenp_bef == *lenp)
/*
*/
unregister_ipcns_notifier(current->nsproxy->ipc_ns);
return rc;
}
static int proc_ipc_callback_dointvec_minmax(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
size_t lenp_bef = *lenp;
int rc;
memcpy(&ipc_table, table, sizeof(ipc_table));
ipc_table.data = get_ipc(table);
rc = proc_dointvec_minmax(&ipc_table, write, buffer, lenp, ppos);
if (write && !rc && lenp_bef == *lenp)
/*
* Tunable has successfully been changed by hand. Disable its
* automatic adjustment. This simply requires unregistering
* the notifiers that trigger recalculation.
*/
unregister_ipcns_notifier(current->nsproxy->ipc_ns);
return rc;
}
/* The generic sysctl ipc data routine. */
static int sysctl_ipc_data(ctl_table *table, int __user *name, int nlen,
void __user *oldval, size_t __user *oldlenp,
void __user *newval, size_t newlen)
{
size_t len;
void *data;
/* Get out of I don't have a variable */
if (!table->data || !table->maxlen)
return -ENOTDIR;
data = get_ipc(table);
if (!data)
return -ENOTDIR;
if (oldval && oldlenp) {
if (get_user(len, oldlenp))
return -EFAULT;
if (len) {
if (len > table->maxlen)
len = table->maxlen;
if (copy_to_user(oldval, data, len))
return -EFAULT;
if (put_user(len, oldlenp))
return -EFAULT;
}
}
if (newval && newlen) {
if (newlen > table->maxlen)
newlen = table->maxlen;
if (copy_from_user(data, newval, newlen))
return -EFAULT;
}
return 1;
}
}
#ifdef CONFIG_PROC_SYSCTL
static int proc_ipc_dointvec(ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
<<<<<<< HEAD
<<<<<<< HEAD
=======
>>>>>>> 73a10a64c2f389351ff1594d88983f47c8de08f0
=======
>>>>>>> ae1773bb70f3d7cf73324ce8fba787e01d8fa9f2
memcpy(&ipc_table, table, sizeof(ipc_table));
ipc_table.data = get_ipc(table);
return proc_dointvec(&ipc_table, write, buffer, lenp, ppos);
}
<<<<<<< HEAD
<<<<<<< HEAD
static int proc_ipc_dointvec_minmax(ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
memcpy(&ipc_table, table, sizeof(ipc_table));
ipc_table.data = get_ipc(table);
return proc_dointvec_minmax(&ipc_table, write, buffer, lenp, ppos);
