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authorLinus Torvalds <torvalds@linux-foundation.org>2022-05-26 16:57:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-05-26 16:57:20 -0700
commit44d35720c9a660074b77ab9de37abf2c01c5b44f (patch)
tree8e1242c7ff2e3559bff80ab681ccbe9bb2c4bffb /kernel/kexec_core.c
parentcdeffe87f790dfd1baa193020411ce9a538446d7 (diff)
parent494dcdf46e5cdee926c9f441d37e3ea1db57d1da (diff)
Merge tag 'sysctl-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull sysctl updates from Luis Chamberlain: "For two kernel releases now kernel/sysctl.c has been being cleaned up slowly, since the tables were grossly long, sprinkled with tons of #ifdefs and all this caused merge conflicts with one susbystem or another. This tree was put together to help try to avoid conflicts with these cleanups going on different trees at time. So nothing exciting on this pull request, just cleanups. Thanks a lot to the Uniontech and Huawei folks for doing some of this nasty work" * tag 'sysctl-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: (28 commits) sched: Fix build warning without CONFIG_SYSCTL reboot: Fix build warning without CONFIG_SYSCTL kernel/kexec_core: move kexec_core sysctls into its own file sysctl: minor cleanup in new_dir() ftrace: fix building with SYSCTL=y but DYNAMIC_FTRACE=n fs/proc: Introduce list_for_each_table_entry for proc sysctl mm: fix unused variable kernel warning when SYSCTL=n latencytop: move sysctl to its own file ftrace: fix building with SYSCTL=n but DYNAMIC_FTRACE=y ftrace: Fix build warning ftrace: move sysctl_ftrace_enabled to ftrace.c kernel/do_mount_initrd: move real_root_dev sysctls to its own file kernel/delayacct: move delayacct sysctls to its own file kernel/acct: move acct sysctls to its own file kernel/panic: move panic sysctls to its own file kernel/lockdep: move lockdep sysctls to its own file mm: move page-writeback sysctls to their own file mm: move oom_kill sysctls to their own file kernel/reboot: move reboot sysctls to its own file sched: Move energy_aware sysctls to topology.c ...
Diffstat (limited to 'kernel/kexec_core.c')
-rw-r--r--kernel/kexec_core.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index be4b54c2c615..8b3e9a2014cf 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -936,6 +936,28 @@ int kimage_load_segment(struct kimage *image,
struct kimage *kexec_image;
struct kimage *kexec_crash_image;
int kexec_load_disabled;
+#ifdef CONFIG_SYSCTL
+static struct ctl_table kexec_core_sysctls[] = {
+ {
+ .procname = "kexec_load_disabled",
+ .data = &kexec_load_disabled,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ /* only handle a transition from default "0" to "1" */
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ONE,
+ .extra2 = SYSCTL_ONE,
+ },
+ { }
+};
+
+static int __init kexec_core_sysctl_init(void)
+{
+ register_sysctl_init("kernel", kexec_core_sysctls);
+ return 0;
+}
+late_initcall(kexec_core_sysctl_init);
+#endif
/*
* No panic_cpu check version of crash_kexec(). This function is called