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Re: [PATCH] ARM: exynos_defconfig: Enable DYNAMIC_DEBUG and get rid of old ext3

From Javier Martinez Canillas <javier@osg.samsung.com>
Newsgroups linux.kernel
Subject Re: [PATCH] ARM: exynos_defconfig: Enable DYNAMIC_DEBUG and get rid of old ext3
Date 2017-01-30 20:50 +0100
Message-ID <t5q7E-81V-23@gated-at.bofh.it> (permalink)
References <t5pXY-7V1-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hello Krzysztof,

On 01/30/2017 04:27 PM, Krzysztof Kozlowski wrote:
> DYNAMIC_DEBUG is quite useful for debugging kernels and should not cause
> noticeable performance regressions.  It makes the kernel noticeably
> bigger (around 4%) but this difference should not impact typical
> developer and reference usage of this defconfig.
>
> Sizes:
> zImage-old:       4641496 bytes
> zImage-new:       4811384 bytes
> 
>    text	   data	    bss	    dec	    hex	filename
> 7031229	2570916	 327016	9929161	 9781c9	vmlinux-old
> 7205921	2800052	 327016	10332989 9dab3d	vmlinux-new
>

Agreed, most people usually will end enabling this option when debugging
issues anyways so having enabled by default is quite convenient indeed.

> Additionally, remove the EXT3_FS symbol because it is entirely replaced
> by EXT4_FS.
>
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> ---

Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America

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[PATCH] ARM: exynos_defconfig: Enable DYNAMIC_DEBUG and get rid of old ext3 Krzysztof Kozlowski <krzk@kernel.org> - 2017-01-30 20:40 +0100
  Re: [PATCH] ARM: exynos_defconfig: Enable DYNAMIC_DEBUG and get rid  of old ext3 Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-30 20:50 +0100

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