diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/panic.c | 30 | ||||
| -rw-r--r-- | kernel/signal.c | 11 | ||||
| -rw-r--r-- | kernel/sysctl-test.c | 49 | ||||
| -rw-r--r-- | kernel/sysctl.c | 108 | ||||
| -rw-r--r-- | kernel/trace/trace.c | 36 | ||||
| -rw-r--r-- | kernel/trace/trace_stack.c | 22 |
6 files changed, 97 insertions, 159 deletions
diff --git a/kernel/panic.c b/kernel/panic.c index a3889f38153d..047ea3215312 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -97,6 +97,36 @@ static const struct ctl_table kern_panic_table[] = { }, #endif { + .procname = "panic", + .data = &panic_timeout, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, + { + .procname = "panic_on_oops", + .data = &panic_on_oops, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, + { + .procname = "panic_print", + .data = &panic_print, + .maxlen = sizeof(unsigned long), + .mode = 0644, + .proc_handler = proc_doulongvec_minmax, + }, + { + .procname = "panic_on_warn", + .data = &panic_on_warn, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, + }, + { .procname = "warn_limit", .data = &warn_limit, .maxlen = sizeof(warn_limit), diff --git a/kernel/signal.c b/kernel/signal.c index f8859faa26c5..148082db9a55 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -4981,9 +4981,20 @@ static const struct ctl_table signal_debug_table[] = { #endif }; +static const struct ctl_table signal_table[] = { + { + .procname = "print-fatal-signals", + .data = &print_fatal_signals, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, +}; + static int __init init_signal_sysctls(void) { register_sysctl_init("debug", signal_debug_table); + register_sysctl_init("kernel", signal_table); return 0; } early_initcall(init_signal_sysctls); diff --git a/kernel/sysctl-test.c b/kernel/sysctl-test.c index eb2842bd0557..92f94ea28957 100644 --- a/kernel/sysctl-test.c +++ b/kernel/sysctl-test.c @@ -367,54 +367,6 @@ static void sysctl_test_api_dointvec_write_single_greater_int_max( KUNIT_EXPECT_EQ(test, 0, *((int *)table.data)); } -/* - * Test that registering an invalid extra value is not allowed. - */ -static void sysctl_test_register_sysctl_sz_invalid_extra_value( - struct kunit *test) -{ - unsigned char data = 0; - const struct ctl_table table_foo[] = { - { - .procname = "foo", - .data = &data, - .maxlen = sizeof(u8), - .mode = 0644, - .proc_handler = proc_dou8vec_minmax, - .extra1 = SYSCTL_FOUR, - .extra2 = SYSCTL_ONE_THOUSAND, - }, - }; - - const struct ctl_table table_bar[] = { - { - .procname = "bar", - .data = &data, - .maxlen = sizeof(u8), - .mode = 0644, - .proc_handler = proc_dou8vec_minmax, - .extra1 = SYSCTL_NEG_ONE, - .extra2 = SYSCTL_ONE_HUNDRED, - }, - }; - - const struct ctl_table table_qux[] = { - { - .procname = "qux", - .data = &data, - .maxlen = sizeof(u8), - .mode = 0644, - .proc_handler = proc_dou8vec_minmax, - .extra1 = SYSCTL_ZERO, - .extra2 = SYSCTL_TWO_HUNDRED, - }, - }; - - KUNIT_EXPECT_NULL(test, register_sysctl("foo", table_foo)); - KUNIT_EXPECT_NULL(test, register_sysctl("foo", table_bar)); - KUNIT_EXPECT_NOT_NULL(test, register_sysctl("foo", table_qux)); -} - static struct kunit_case sysctl_test_cases[] = { KUNIT_CASE(sysctl_test_api_dointvec_null_tbl_data), KUNIT_CASE(sysctl_test_api_dointvec_table_maxlen_unset), @@ -426,7 +378,6 @@ static struct kunit_case sysctl_test_cases[] = { KUNIT_CASE(sysctl_test_dointvec_write_happy_single_negative), KUNIT_CASE(sysctl_test_api_dointvec_write_single_less_int_min), KUNIT_CASE(sysctl_test_api_dointvec_write_single_greater_int_max), - KUNIT_CASE(sysctl_test_register_sysctl_sz_invalid_extra_value), {} }; diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 3b7a7308e35b..9b4f0cff76ea 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -22,8 +22,6 @@ #include <linux/module.h> #include <linux/sysctl.h> #include <linux/bitmap.h> -#include <linux/signal.h> -#include <linux/panic.h> #include <linux/printk.h> #include <linux/proc_fs.h> #include <linux/security.h> @@ -46,7 +44,6 @@ #include <linux/nfs_fs.h> #include <linux/acpi.h> #include <linux/reboot.h> -#include <linux/ftrace.h> #include <linux/kmod.h> #include <linux/capability.h> #include <linux/binfmts.h> @@ -61,12 +58,8 @@ #ifdef CONFIG_X86 #include <asm/nmi.h> -#include <asm/stacktrace.h> #include <asm/io.h> #endif -#ifdef CONFIG_SPARC -#include <asm/setup.h> -#endif #ifdef CONFIG_RT_MUTEXES #include <linux/rtmutex.h> #endif @@ -1588,13 +1581,6 @@ int proc_do_static_key(const struct ctl_table *table, int write, } static const struct ctl_table kern_table[] = { - { - .procname = "panic", - .data = &panic_timeout, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, #ifdef CONFIG_PROC_SYSCTL { .procname = "tainted", @@ -1612,45 +1598,6 @@ static const struct ctl_table kern_table[] = { .extra2 = SYSCTL_ONE, }, #endif - { - .procname = "print-fatal-signals", - .data = &print_fatal_signals, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, -#ifdef CONFIG_SPARC - { - .procname = "reboot-cmd", - .data = reboot_command, - .maxlen = 256, - .mode = 0644, - .proc_handler = proc_dostring, - }, - { - .procname = "stop-a", - .data = &stop_a_enabled, - .maxlen = sizeof (int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, - { - .procname = "scons-poweroff", - .data = &scons_pwroff, - .maxlen = sizeof (int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, -#endif -#ifdef CONFIG_SPARC64 - { - .procname = "tsb-ratio", - .data = &sysctl_tsb_ratio, - .maxlen = sizeof (int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, -#endif #ifdef CONFIG_PARISC { .procname = "soft-power", @@ -1669,38 +1616,6 @@ static const struct ctl_table kern_table[] = { .proc_handler = proc_dointvec, }, #endif -#ifdef CONFIG_STACK_TRACER - { - .procname = "stack_tracer_enabled", - .data = &stack_tracer_enabled, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = stack_trace_sysctl, - }, -#endif -#ifdef CONFIG_TRACING - { - .procname = "ftrace_dump_on_oops", - .data = &ftrace_dump_on_oops, - .maxlen = MAX_TRACER_SIZE, - .mode = 0644, - .proc_handler = proc_dostring, - }, - { - .procname = "traceoff_on_warning", - .data = &__disable_trace_on_warning, - .maxlen = sizeof(__disable_trace_on_warning), - .mode = 0644, - .proc_handler = proc_dointvec, - }, - { - .procname = "tracepoint_printk", - .data = &tracepoint_printk, - .maxlen = sizeof(tracepoint_printk), - .mode = 0644, - .proc_handler = tracepoint_printk_sysctl, - }, -#endif #ifdef CONFIG_MODULES { .procname = "modprobe", @@ -1773,20 +1688,6 @@ static const struct ctl_table kern_table[] = { .extra2 = SYSCTL_MAXOLDUID, }, { - .procname = "panic_on_oops", - .data = &panic_on_oops, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, - { - .procname = "panic_print", - .data = &panic_print, - .maxlen = sizeof(unsigned long), - .mode = 0644, - .proc_handler = proc_doulongvec_minmax, - }, - { .procname = "ngroups_max", .data = (void *)&ngroups_max, .maxlen = sizeof (int), @@ -1837,15 +1738,6 @@ static const struct ctl_table kern_table[] = { .proc_handler = proc_dointvec, }, #endif - { - .procname = "panic_on_warn", - .data = &panic_on_warn, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_minmax, - .extra1 = SYSCTL_ZERO, - .extra2 = SYSCTL_ONE, - }, #ifdef CONFIG_TREE_RCU { .procname = "panic_on_rcu_stall", diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 5b8db27fb6ef..d3459e715fbc 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -120,6 +120,7 @@ static int tracing_disabled = 1; cpumask_var_t __read_mostly tracing_buffer_mask; +#define MAX_TRACER_SIZE 100 /* * ftrace_dump_on_oops - variable to dump ftrace buffer on oops * @@ -142,7 +143,40 @@ cpumask_var_t __read_mostly tracing_buffer_mask; char ftrace_dump_on_oops[MAX_TRACER_SIZE] = "0"; /* When set, tracing will stop when a WARN*() is hit */ -int __disable_trace_on_warning; +static int __disable_trace_on_warning; + +int tracepoint_printk_sysctl(const struct ctl_table *table, int write, + void *buffer, size_t *lenp, loff_t *ppos); +static const struct ctl_table trace_sysctl_table[] = { + { + .procname = "ftrace_dump_on_oops", + .data = &ftrace_dump_on_oops, + .maxlen = MAX_TRACER_SIZE, + .mode = 0644, + .proc_handler = proc_dostring, + }, + { + .procname = "traceoff_on_warning", + .data = &__disable_trace_on_warning, + .maxlen = sizeof(__disable_trace_on_warning), + .mode = 0644, + .proc_handler = proc_dointvec, + }, + { + .procname = "tracepoint_printk", + .data = &tracepoint_printk, + .maxlen = sizeof(tracepoint_printk), + .mode = 0644, + .proc_handler = tracepoint_printk_sysctl, + }, +}; + +static int __init init_trace_sysctls(void) +{ + register_sysctl_init("kernel", trace_sysctl_table); + return 0; +} +subsys_initcall(init_trace_sysctls); #ifdef CONFIG_TRACE_EVAL_MAP_FILE /* Map of enums to their values, for "eval_map" file */ diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index 14c6f272c4d8..e34223c8065d 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -32,7 +32,7 @@ static arch_spinlock_t stack_trace_max_lock = DEFINE_PER_CPU(int, disable_stack_tracer); static DEFINE_MUTEX(stack_sysctl_mutex); -int stack_tracer_enabled; +static int stack_tracer_enabled; static void print_max_stack(void) { @@ -578,3 +578,23 @@ static __init int stack_trace_init(void) } device_initcall(stack_trace_init); + + +static const struct ctl_table trace_stack_sysctl_table[] = { + { + .procname = "stack_tracer_enabled", + .data = &stack_tracer_enabled, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = stack_trace_sysctl, + }, +}; + +static int __init init_trace_stack_sysctls(void) +{ + register_sysctl_init("kernel", trace_stack_sysctl_table); + return 0; +} +subsys_initcall(init_trace_stack_sysctls); + + |