let LOG_BUF_SHIFT default to 17

16 kB is often no longer enough for a normal boot of an UP system.

And even less when people e.g. use suspend.

17 seems to be a more reasonable default for current kernels on current
hardware (it's just the default, anyone who is memory limited can still lower
it).
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

init/Kconfig

@@ -259,17 +259,14 @@ config IKCONFIG_PROC
 config LOG_BUF_SHIFT
 	int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
 	range 12 21
-	default 17 if S390 || LOCKDEP
-	default 16 if X86_NUMAQ || IA64
-	default 15 if SMP
-	default 14
+	default 17
 	help
 	  Select kernel log buffer size as a power of 2.
-	  Defaults and Examples:
-	  	     17 => 128 KB for S/390
-		     16 => 64 KB for x86 NUMAQ or IA-64
-	             15 => 32 KB for SMP
-	             14 => 16 KB for uniprocessor
+	  Examples:
+	  	     17 => 128 KB
+		     16 => 64 KB
+	             15 => 32 KB
+	             14 => 16 KB
 		     13 =>  8 KB
 		     12 =>  4 KB