[RFC PATCH 6/6] ARM, mm: enable NO_BOOTMEM for default ARM build
If we use NO_BOOTMEM, we don't need to initialize a bitmap and we don't need to do bitmap operation, so we can boot slightly faster. Additionaly advantage of enabling NO_BOOTMEM is saving more memory. bootmem allocator manage memories as page unit, so if we request 4 bytes area to bootmem, it actually give us PAGE_SIZE area. nobootmem manage memory as byte unit, so there is no waste. Signed-off-by: Joonsoo Kim diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 13b7394..8b73417 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -58,6 +58,7 @@ config ARM select CLONE_BACKWARDS select OLD_SIGSUSPEND3 select OLD_SIGACTION + select NO_BOOTMEM help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[RFC PATCH 6/6] ARM, mm: enable NO_BOOTMEM for default ARM build
If we use NO_BOOTMEM, we don't need to initialize a bitmap and we don't need to do bitmap operation, so we can boot slightly faster. Additionaly advantage of enabling NO_BOOTMEM is saving more memory. bootmem allocator manage memories as page unit, so if we request 4 bytes area to bootmem, it actually give us PAGE_SIZE area. nobootmem manage memory as byte unit, so there is no waste. Signed-off-by: Joonsoo Kim iamjoonsoo@lge.com diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 13b7394..8b73417 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -58,6 +58,7 @@ config ARM select CLONE_BACKWARDS select OLD_SIGSUSPEND3 select OLD_SIGACTION + select NO_BOOTMEM help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and -- 1.7.9.5 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
