[PATCH] x86_64: Add compat_printk and sysctl to turn off compat layer warnings
Sometimes e.g. with crashme the compat layer warnings can be noisy.
Add a way to turn them off by gating all output through compat_printk
that checks a global sysctl. The default is not changed.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 6a60770..349ef90 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -148,9 +148,11 @@
KERN_SPIN_RETRY=70, /* int: number of spinlock retries */
KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */
KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */
+ KERN_COMPAT_LOG=73, /* int: print compat layer messages */
};
+
/* CTL_VM names: */
enum
{