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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2010-10-25 10:10:51 -0400
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-10-25 10:10:21 -0400
commit14375bc4eb8dd0fb0e765390650564c35bb31068 (patch)
tree27200620658245c582ee9497fc969a082b304cab /arch/s390/mm/fault.c
parenteca577ef5989d25dedc6b0fae3c4622ceaee8005 (diff)
[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;
56 56
57void fault_init(void) 57void fault_init(void)
58{ 58{
59 unsigned long long facility_list[2]; 59 if (test_facility(2) && test_facility(75))
60
61 if (stfle(facility_list, 2) < 2)
62 return;
63 if ((facility_list[0] & (1ULL << 61)) &&
64 (facility_list[1] & (1ULL << 52)))
65 store_indication = 0xc00; 60 store_indication = 0xc00;
66} 61}
67 62