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authorDominik Dingel <dingel@linux.vnet.ibm.com>2016-04-27 12:43:07 +0300
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-02-23 12:06:39 +0300
commit54397bb0bbedbb9f7d77a62f6ddc6869354e3d9f (patch)
tree22f09ed536c33c340bd40693235c644a1141927a /arch/s390/mm/hugetlbpage.c
parent77759137248f34864a8f7a58bbcebfcf1047504a (diff)
downloadlinux-54397bb0bbedbb9f7d77a62f6ddc6869354e3d9f.tar.xz
s390/mm: use _SEGMENT_ENTRY_EMPTY in the code
_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>
Diffstat (limited to 'arch/s390/mm/hugetlbpage.c')
-rw-r--r--arch/s390/mm/hugetlbpage.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index a03816227719..9b4050caa4e9 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -62,7 +62,7 @@ static inline unsigned long __pte_to_rste(pte_t pte)
rste |= move_set_bit(pte_val(pte), _PAGE_NOEXEC,
_SEGMENT_ENTRY_NOEXEC);
} else
- rste = _SEGMENT_ENTRY_INVALID;
+ rste = _SEGMENT_ENTRY_EMPTY;
return rste;
}