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[PATCH] BLOCK: Separate the bounce buffering code from the highmem code [try #6]

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Move the bounce buffer code from mm/highmem.c to mm/bounce.c so that it can be
more easily disabled when the block layer is disabled.

!!!NOTE!!! There may be a bug in this code: Should init_emergency_pool() be
	   contingent on CONFIG_HIGHMEM?

Signed-Off-By: David Howells <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
David Howells 2006-08-29 19:06:00 +01:00 • committed by Jens Axboe
commit 831058dec3
3 changed files with 305 additions and 281 deletions
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3
mm/Makefile
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@ -12,6 +12,9 @@ obj-y := bootmem.o filemap.o mempool.o oom_kill.o fadvise.o \
readahead.o swap.o truncate.o vmscan.o \
prio_tree.o util.o mmzone.o vmstat.o $(mmu-y)
ifeq ($(CONFIG_MMU),y)
obj-y += bounce.o
endif
obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o thrash.o
obj-$(CONFIG_HUGETLBFS) += hugetlb.o
obj-$(CONFIG_NUMA) += mempolicy.o