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Diffstat (limited to 'kernel/sysctl.c')
-rw-r--r--kernel/sysctl.c131
1 files changed, 64 insertions, 67 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 7cb1ac3e6ff..8b7e9541179 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -37,7 +37,6 @@
#include <linux/highuid.h>
#include <linux/writeback.h>
#include <linux/hugetlb.h>
-#include <linux/security.h>
#include <linux/initrd.h>
#include <linux/times.h>
#include <linux/limits.h>
@@ -67,14 +66,13 @@ extern int sysctl_overcommit_memory;
extern int sysctl_overcommit_ratio;
extern int sysctl_panic_on_oom;
extern int sysctl_oom_kill_allocating_task;
+extern int sysctl_oom_dump_tasks;
extern int max_threads;
extern int core_uses_pid;
extern int suid_dumpable;
extern char core_pattern[];
extern int pid_max;
extern int min_free_kbytes;
-extern int printk_ratelimit_jiffies;
-extern int printk_ratelimit_burst;
extern int pid_max_min, pid_max_max;
extern int sysctl_drop_caches;
extern int percpu_pagelist_fraction;
@@ -84,8 +82,11 @@ extern int sysctl_stat_interval;
extern int latencytop_enabled;
/* Constants used for minimum and maximum */
-#ifdef CONFIG_DETECT_SOFTLOCKUP
+#if defined(CONFIG_DETECT_SOFTLOCKUP) || defined(CONFIG_HIGHMEM)
static int one = 1;
+#endif
+
+#ifdef CONFIG_DETECT_SOFTLOCKUP
static int sixty = 60;
#endif
@@ -310,22 +311,6 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec,
},
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "sched_rt_period_ms",
- .data = &sysctl_sched_rt_period,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "sched_rt_ratio",
- .data = &sysctl_sched_rt_ratio,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_SMP)
{
.ctl_name = CTL_UNNUMBERED,
@@ -347,6 +332,22 @@ static struct ctl_table kern_table[] = {
#endif
{
.ctl_name = CTL_UNNUMBERED,
+ .procname = "sched_rt_period_us",
+ .data = &sysctl_sched_rt_period,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "sched_rt_runtime_us",
+ .data = &sysctl_sched_rt_runtime,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+ {
+ .ctl_name = CTL_UNNUMBERED,
.procname = "sched_compat_yield",
.data = &sysctl_sched_compat_yield,
.maxlen = sizeof(unsigned int),
@@ -416,15 +417,6 @@ static struct ctl_table kern_table[] = {
.proc_handler = &proc_dointvec,
},
#endif
-#ifdef CONFIG_SECURITY_CAPABILITIES
- {
- .procname = "cap-bound",
- .data = &cap_bset,
- .maxlen = sizeof(kernel_cap_t),
- .mode = 0600,
- .proc_handler = &proc_dointvec_bset,
- },
-#endif /* def CONFIG_SECURITY_CAPABILITIES */
#ifdef CONFIG_BLK_DEV_INITRD
{
.ctl_name = KERN_REALROOTDEV,
@@ -496,14 +488,6 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec,
},
- {
- .ctl_name = KERN_PRINTK,
- .procname = "printk",
- .data = &console_loglevel,
- .maxlen = 4*sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
#ifdef CONFIG_KMOD
{
.ctl_name = KERN_MODPROBE,
@@ -650,6 +634,15 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec,
},
+#if defined CONFIG_PRINTK
+ {
+ .ctl_name = KERN_PRINTK,
+ .procname = "printk",
+ .data = &console_loglevel,
+ .maxlen = 4*sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
{
.ctl_name = KERN_PRINTK_RATELIMIT,
.procname = "printk_ratelimit",
@@ -667,6 +660,7 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec,
},
+#endif
{
.ctl_name = KERN_NGROUPS_MAX,
.procname = "ngroups_max",
@@ -877,6 +871,14 @@ static struct ctl_table vm_table[] = {
.proc_handler = &proc_dointvec,
},
{
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "oom_dump_tasks",
+ .data = &sysctl_oom_dump_tasks,
+ .maxlen = sizeof(sysctl_oom_dump_tasks),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+ {
.ctl_name = VM_OVERCOMMIT_RATIO,
.procname = "overcommit_ratio",
.data = &sysctl_overcommit_ratio,
@@ -976,10 +978,10 @@ static struct ctl_table vm_table[] = {
{
.ctl_name = CTL_UNNUMBERED,
.procname = "nr_overcommit_hugepages",
- .data = &nr_overcommit_huge_pages,
- .maxlen = sizeof(nr_overcommit_huge_pages),
+ .data = &sysctl_overcommit_huge_pages,
+ .maxlen = sizeof(sysctl_overcommit_huge_pages),
.mode = 0644,
- .proc_handler = &proc_doulongvec_minmax,
+ .proc_handler = &hugetlb_overcommit_handler,
},
#endif
{
@@ -1150,6 +1152,19 @@ static struct ctl_table vm_table[] = {
.extra1 = &zero,
},
#endif
+#ifdef CONFIG_HIGHMEM
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "highmem_is_dirtyable",
+ .data = &vm_highmem_is_dirtyable,
+ .maxlen = sizeof(vm_highmem_is_dirtyable),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
+#endif
/*
* NOTE: do not add new entries to this table unless you have read
* Documentation/sysctl/ctl_unnumbered.txt
@@ -1196,6 +1211,14 @@ static struct ctl_table fs_table[] = {
.proc_handler = &proc_dointvec,
},
{
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "nr_open",
+ .data = &sysctl_nr_open,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+ {
.ctl_name = FS_DENTRY,
.procname = "dentry-state",
.data = &dentry_stat,
@@ -2080,26 +2103,6 @@ static int do_proc_dointvec_bset_conv(int *negp, unsigned long *lvalp,
return 0;
}
-#ifdef CONFIG_SECURITY_CAPABILITIES
-/*
- * init may raise the set.
- */
-
-int proc_dointvec_bset(struct ctl_table *table, int write, struct file *filp,
- void __user *buffer, size_t *lenp, loff_t *ppos)
-{
- int op;
-
- if (write && !capable(CAP_SYS_MODULE)) {
- return -EPERM;
- }
-
- op = is_global_init(current) ? OP_SET : OP_AND;
- return do_proc_dointvec(table,write,filp,buffer,lenp,ppos,
- do_proc_dointvec_bset_conv,&op);
-}
-#endif /* def CONFIG_SECURITY_CAPABILITIES */
-
/*
* Taint values can only be increased
*/
@@ -2484,7 +2487,7 @@ static int proc_do_cad_pid(struct ctl_table *table, int write, struct file *filp
pid_t tmp;
int r;
- tmp = pid_nr_ns(cad_pid, current->nsproxy->pid_ns);
+ tmp = pid_vnr(cad_pid);
r = __do_proc_dointvec(&tmp, table, write, filp, buffer,
lenp, ppos, NULL, NULL);
@@ -2513,12 +2516,6 @@ int proc_dointvec(struct ctl_table *table, int write, struct file *filp,
return -ENOSYS;
}
-int proc_dointvec_bset(struct ctl_table *table, int write, struct file *filp,
- void __user *buffer, size_t *lenp, loff_t *ppos)
-{
- return -ENOSYS;
-}
-
int proc_dointvec_minmax(struct ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-05 14:02:52 +0000