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Commit 07141d40 authored by Asha Magadi Venkateshamurthy's avatar Asha Magadi Venkateshamurthy Committed by Gerrit - the friendly Code Review server
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mm/Kconfig: forcing allocators to return ZONE_DMA32 memory 



Add a new config item, CONFIG_FORCE_ALLOC_FROM_DMA_ZONE, which
can be used to optionally force certain allocators to always
return memory from ZONE_DMA32.

This option helps ensure that clients who require ZONE_DMA32
memory are always using ZONE_DMA32 memory.

Change-Id: Id2d36214307789f27aa775c2bef2dab5047c4ff0
Signed-off-by: default avatarPraveen Kurapati <pkurapat@codeaurora.org>
Signed-off-by: default avatarLiam Mark <lmark@codeaurora.org>
Signed-off-by: default avatarPatrick Daly <pdaly@codeaurora.org>
Signed-off-by: default avatarSudarshan Rajagopalan <sudaraja@codeaurora.org>
Signed-off-by: default avatarAsha Magadi Venkateshamurthy <amagad@codeaurora.org>
parent e3105f1e

mm/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -875,3 +875,13 @@ config PROCESS_RECLAIM 
	 (addr, addr + size-bytes) of the process.



	 Any other value is ignored.



config FORCE_ALLOC_FROM_DMA_ZONE

	bool "Force certain memory allocators to always return ZONE_DMA32 memory"

	depends on ZONE_DMA32

	help

	  Ensure certain memory allocators always return memory from ZONE_DMA32.

	  This option helps ensure that clients who require ZONE_DMA32 memory are

	  always using ZONE_DMA32 memory.



	  If unsure, say "n".