[S390] vmalloc: add vmalloc kernel parameter support

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With the kernel parameter 'vmalloc=<size>' the size of the vmalloc area
can be specified. This can be used to increase or decrease the size of
the area. Works in the same way as on some other architectures.
This can be useful for features which make excessive use of vmalloc and
wouldn't work otherwise.
The default sizes remain unchanged: 96MB for 31 bit kernels and 1GB for
64 bit kernels.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Heiko Carstens 2009-06-12 10:26:33 +02:00 • committed by Martin Schwidefsky

parent dab4079d5b

commit 239a64255f

2 changed files with 18 additions and 5 deletions

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7

arch/s390/include/asm/pgtable.h

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16

arch/s390/mm/pgtable.c

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