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| author | Gerald Schaefer <gerald.schaefer@de.ibm.com> | 2013-01-09 18:49:51 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-01-12 18:49:25 +0100 |
| commit | 171c4006fb1b42a084057a71c86776e9f1b8e62c (patch) | |
| tree | 84ea088530fdda5322b144ccfbf32b9502fcf737 /arch | |
| parent | b719f43059903820c31edb30f4663a2818836e7f (diff) | |
| download | linux-171c4006fb1b42a084057a71c86776e9f1b8e62c.tar.gz linux-171c4006fb1b42a084057a71c86776e9f1b8e62c.tar.bz2 linux-171c4006fb1b42a084057a71c86776e9f1b8e62c.zip | |
s390/mm: fix pmd_pfn() for thp
The pfn calculation in pmd_pfn() is broken for thp, because it uses
HPAGE_SHIFT instead of the normal PAGE_SHIFT. This is fixed by removing
the distinction between thp and normal pmds in that function, and always
using PAGE_SHIFT.
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index c928dc1938f2..c1d7930a82f4 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1387,10 +1387,7 @@ static inline int has_transparent_hugepage(void) static inline unsigned long pmd_pfn(pmd_t pmd) { - if (pmd_trans_huge(pmd)) - return pmd_val(pmd) >> HPAGE_SHIFT; - else - return pmd_val(pmd) >> PAGE_SHIFT; + return pmd_val(pmd) >> PAGE_SHIFT; } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ |