s390/mm,vmem: fix vmem_add_mem()/vmem_remove_range()

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vmem_add_mem() should only then insert a large page if pmd_none() is true
for the specific entry. We might have a leftover from a previous mapping.
In addition make vmem_remove_range()'s page table walk code more complete
and fix a couple of potential endless loops (which can never happen :).

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 2012-10-08 07:54:32 +02:00 • committed by Martin Schwidefsky

parent c972cc60c2

commit fc7e48aad3

1 changed files with 12 additions and 4 deletions

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arch/s390/mm/vmem.c

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