[sysctl] Fix breakage on systems with older glibc
As predicted during code review, the sysctl(2) changes made systems with
old glibc nearly unusable. About every command gives a:
warning: process `ls' used the deprecated sysctl system call with 1.4
warning in the log.
I see this on a SUSE 10.0 system with glibc 2.3.5.
Don't warn for this common case.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index b75dbf4..112533d 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -1399,6 +1399,13 @@
{
int i;
+ /*
+ * CTL_KERN/KERN_VERSION is used by older glibc and cannot
+ * ever go away.
+ */
+ if (name[0] == CTL_KERN && name[1] == KERN_VERSION)
+ return;
+
if (printk_ratelimit()) {
printk(KERN_INFO
"warning: process `%s' used the deprecated sysctl "
