s390/mm: use _SEGMENT_ENTRY_EMPTY in the code

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_SEGMENT_ENTRY_INVALID denotes the invalid bit in a segment table
entry whereas _SEGMENT_ENTRY_EMPTY means that the value of the whole
entry is only the invalid bit, as the entry is completely empty.

Therefore we use _SEGMENT_ENTRY_INVALID only to check and set the
invalid bit with bitwise operations. _SEGMENT_ENTRY_EMPTY is only used
to check for (un)equality.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Dominik Dingel 2016-04-27 11:43:07 +02:00 • committed by Martin Schwidefsky

parent 7775913724

commit 54397bb0bb

3 changed files with 11 additions and 11 deletions

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14

arch/s390/include/asm/pgtable.h

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6

arch/s390/mm/gmap.c

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2

arch/s390/mm/hugetlbpage.c

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