From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 1 Jul 2015 08:19:11 +0000 (+0200)
Subject: printk: Increase maximum CONFIG_LOG_BUF_SHIFT from 21 to 25
X-Git-Tag: v4.2-rc1~11^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fb39f98d14d2c92531e79bcda5a0b802e2aaf202;p=thirdparty%2Fkernel%2Flinux.git

printk: Increase maximum CONFIG_LOG_BUF_SHIFT from 21 to 25

So I tried to some kernel debugging that produced a ton of kernel messages
on a big box, and wanted to save them all: but CONFIG_LOG_BUF_SHIFT maxes
out at 21 (2 MB).

Increase it to 25 (32 MB).

This does not affect any existing config or defaults.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/init/Kconfig b/init/Kconfig
index b999fa381bf9f..db615e720d28f 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -820,7 +820,7 @@ config IKCONFIG_PROC
 
 config LOG_BUF_SHIFT
 	int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
-	range 12 21
+	range 12 25
 	default 17
 	depends on PRINTK
 	help