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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2012-10-08 09:18:26 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-11-23 11:14:24 +0100 |
| commit | 18da236908793abccebc6f365fbe6e95a5b41db0 (patch) | |
| tree | 34899d0c737b625660a44f2b47436e5e82a17511 /arch/s390/mm/pageattr.c | |
| parent | 26d29d06ea020411559f75ec908db235ca1838d9 (diff) | |
| download | op-kernel-dev-18da236908793abccebc6f365fbe6e95a5b41db0.zip op-kernel-dev-18da236908793abccebc6f365fbe6e95a5b41db0.tar.gz | |
s390/mm,vmem: use 2GB frames for identity mapping
Use 2GB frames for indentity mapping if EDAT2 is
available to reduce TLB pressure.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/pageattr.c')
| -rw-r--r-- | arch/s390/mm/pageattr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c index 00be01c..c7ec7c2 100644 --- a/arch/s390/mm/pageattr.c +++ b/arch/s390/mm/pageattr.c @@ -19,7 +19,7 @@ static pte_t *walk_page_table(unsigned long addr) if (pgd_none(*pgdp)) return NULL; pudp = pud_offset(pgdp, addr); - if (pud_none(*pudp)) + if (pud_none(*pudp) || pud_large(*pudp)) return NULL; pmdp = pmd_offset(pudp, addr); if (pmd_none(*pmdp) || pmd_large(*pmdp)) |
