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s390/mm: correct return value of pmd_pfn 

Git commit 152125b7a8
"s390/mm: implement dirty bits for large segment table entries"
broke the pmd_pfn function, it changed the return value from
'unsigned long' to 'int'. This breaks all machine configurations
with memory above the 8TB line.

Cc: stable@vger.kernel.org # 3.17+
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
hifive-unleashed-5.1
Martin Schwidefsky 2015-05-13 14:33:22 +02:00
parent c431761ddd
commit 7cded342c0
1 changed files with 1 additions and 1 deletions
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arch/s390/include/asm/pgtable.h
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@ -494,7 +494,7 @@ static inline int pmd_large(pmd_t pmd)
return (pmd_val(pmd) & _SEGMENT_ENTRY_LARGE) != 0;
}
static inline int pmd_pfn(pmd_t pmd)
static inline unsigned long pmd_pfn(pmd_t pmd)
{
unsigned long origin_mask;