procps/procps-v3.3.3-read-sysctls-also-from-boot-sysctl.conf-kernelversion.diff

---
 sysctl.8 |    2 ++
 sysctl.c |   12 ++++++++++++
 2 files changed, 14 insertions(+)

--- sysctl.8
+++ sysctl.8	2021-02-10 10:05:27.781748090 +0000
@@ -81,6 +81,8 @@ directories in the following list in giv
 Once a file of a given filename is loaded, any file of the same name
 in subsequent directories is ignored.
 .br
+/boot/sysctl.conf-<kernelversion>
+.br
 /etc/sysctl.d/*.conf
 .br
 /run/sysctl.d/*.conf
--- sysctl.c
+++ sysctl.c	2021-02-10 10:04:25.290952318 +0000
@@ -39,6 +39,7 @@
 #include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <sys/utsname.h>
 #include <unistd.h>
 
 #include "c.h"
@@ -621,6 +622,7 @@ static int sortpairs(const void *A, cons
 static int PreloadSystem(void)
 {
 	unsigned di, i;
+	struct utsname uts;
 	const char *dirs[] = {
 		"/etc/sysctl.d",
 		"/run/sysctl.d",
@@ -685,6 +687,16 @@ static int PreloadSystem(void)
 	}
 	qsort(cfgs, ncfgs, sizeof(struct cfg *), sortpairs);
 
+	if (uname(&uts) == 0) {
+		char buf[PATH_MAX];
+		snprintf(buf, sizeof(buf), "/boot/sysctl.conf-%s", uts.release);
+		if (access(buf, R_OK) == 0) {
+			if (!Quiet)
+				printf("* Applying %s ...\n", buf);
+			Preload(buf);
+		}
+	}
+
 	for (i = 0; i < ncfgs; ++i) {
 		if (!Quiet)
 			printf(_("* Applying %s ...\n"), cfgs[i]->value);