rcu: Don't deboost before reporting expedited quiescent state

[mirror_ubuntu-jammy-kernel.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 083be6af29d705f371676a0bbca3b4c2546c62ee..111695b016332cd4952a16423907c9379809a71a 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -73,6 +73,7 @@
 #include <linux/latencytop.h>
 #include <linux/pid.h>
 #include <linux/delayacct.h>
+#include <linux/user_namespace.h>
 
 #include "../lib/kstrtox.h"
 
@@ -228,6 +229,10 @@ static int bpf_stats_handler(struct ctl_table *table, int write,
        return ret;
 }
 
+void __weak unpriv_ebpf_notify(int new_state)
+{
+}
+
 static int bpf_unpriv_handler(struct ctl_table *table, int write,
                              void *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -245,6 +250,9 @@ static int bpf_unpriv_handler(struct ctl_table *table, int write,
                        return -EPERM;
                *(int *)table->data = unpriv_enable;
        }
+
+       unpriv_ebpf_notify(unpriv_enable);
+
        return ret;
 }
 #endif /* CONFIG_BPF_SYSCALL && CONFIG_SYSCTL */
@@ -1949,6 +1957,15 @@ static struct ctl_table kern_table[] = {
                .proc_handler   = proc_dointvec,
        },
 #endif
+#ifdef CONFIG_USER_NS
+       {
+               .procname       = "unprivileged_userns_clone",
+               .data           = &unprivileged_userns_clone,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+#endif
 #ifdef CONFIG_PROC_SYSCTL
        {
                .procname       = "tainted",