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Groups > linux.kernel > #1570065 > unrolled thread
| Started by | Krzysztof Kozlowski <krzk@kernel.org> |
|---|---|
| First post | 2017-01-30 20:40 +0100 |
| Last post | 2017-01-30 20:50 +0100 |
| Articles | 2 — 2 participants |
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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
| From | Krzysztof Kozlowski <krzk@kernel.org> |
|---|---|
| Date | 2017-01-30 20:40 +0100 |
| Subject | [PATCH] ARM: exynos_defconfig: Enable DYNAMIC_DEBUG and get rid of old ext3 |
| Message-ID | <t5pXY-7V1-17@gated-at.bofh.it> |
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 Additionally, remove the EXT3_FS symbol because it is entirely replaced by EXT4_FS. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- arch/arm/configs/exynos_defconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig index 12b8f69cbb52..746739027da6 100644 --- a/arch/arm/configs/exynos_defconfig +++ b/arch/arm/configs/exynos_defconfig @@ -240,7 +240,7 @@ CONFIG_PWM=y CONFIG_PWM_SAMSUNG=y CONFIG_PHY_EXYNOS5250_SATA=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y +CONFIG_EXT4_FS=y CONFIG_AUTOFS4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y @@ -255,6 +255,7 @@ CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_ASCII=y CONFIG_NLS_ISO8859_1=y CONFIG_PRINTK_TIME=y +CONFIG_DYNAMIC_DEBUG=y CONFIG_DEBUG_INFO=y CONFIG_DEBUG_FS=y CONFIG_MAGIC_SYSRQ=y -- 2.9.3
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| From | Javier Martinez Canillas <javier@osg.samsung.com> |
|---|---|
| Date | 2017-01-30 20:50 +0100 |
| Subject | Re: [PATCH] ARM: exynos_defconfig: Enable DYNAMIC_DEBUG and get rid of old ext3 |
| Message-ID | <t5q7E-81V-23@gated-at.bofh.it> |
| In reply to | #1570065 |
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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