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rd: support XIP

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Support direct_access XIP method with brd.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nick Piggin
2008-02-08 04:19:50 -08:00
committed by Linus Torvalds
parent 9db5579be4
commit 75acb9cd2e
2 changed files with 47 additions and 2 deletions
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drivers/block/Kconfig
+10
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@@ -357,6 +357,16 @@ config BLK_DEV_RAM_SIZE
The default value is 4096 kilobytes. Only change this if you know
what you are doing.
config BLK_DEV_XIP
bool "Support XIP filesystems on RAM block device"
depends on BLK_DEV_RAM
default n
help
Support XIP filesystems (such as ext2 with XIP support on) on
top of block ram device. This will slightly enlarge the kernel, and
will prevent RAM block device backing store memory from being
allocated from highmem (only a problem for highmem systems).
config CDROM_PKTCDVD
tristate "Packet writing on CD/DVD media"
depends on !UML