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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2010-10-25 16:10:51 +0200
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-10-25 16:10:21 +0200
commit14375bc4eb8dd0fb0e765390650564c35bb31068 (patch)
tree27200620658245c582ee9497fc969a082b304cab /arch/s390/mm/fault.c
parenteca577ef5989d25dedc6b0fae3c4622ceaee8005 (diff)
downloadblackbird-op-linux-14375bc4eb8dd0fb0e765390650564c35bb31068.tar.gz
blackbird-op-linux-14375bc4eb8dd0fb0e765390650564c35bb31068.zip
[S390] cleanup facility list handling
Store the facility list once at system startup with stfl/stfle and reuse the result for all facility tests. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/fault.c')
-rw-r--r--arch/s390/mm/fault.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index b4aad0c1f562..fe5701e9efbf 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -56,12 +56,7 @@ static unsigned long store_indication;
void fault_init(void)
{
- unsigned long long facility_list[2];
-
- if (stfle(facility_list, 2) < 2)
- return;
- if ((facility_list[0] & (1ULL << 61)) &&
- (facility_list[1] & (1ULL << 52)))
+ if (test_facility(2) && test_facility(75))
store_indication = 0xc00;
}
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