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[S390] DEBUG_PAGEALLOC support for s390.

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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2008-02-05 16:50:37 +01:00
committed by Martin Schwidefsky
parent 01bc8ad165
commit 2485579bf5
4 changed files with 43 additions and 1 deletions
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8
arch/s390/Kconfig.debug
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@@ -6,4 +6,12 @@ config TRACE_IRQFLAGS_SUPPORT
source "lib/Kconfig.debug"
config DEBUG_PAGEALLOC
bool "Debug page memory allocations"
depends on DEBUG_KERNEL
help
Unmap pages from the kernel linear mapping after free_pages().
This results in a slowdown, but helps to find certain types of
memory corruptions.
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