Commit-ID: 9b718e758ac91f28b6cdd354ad5ee9c767daae74 Gitweb: http://git.kernel.org/tip/9b718e758ac91f28b6cdd354ad5ee9c767daae74 Author: Ingo Molnar <mingo@xxxxxxxxxx> AuthorDate: Sun, 28 Oct 2012 14:10:14 +0100 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Sun, 28 Oct 2012 17:31:21 +0100 sched, numa, mm, s390/thp: Add pmd_mknotpresent() We'd like to make use of pmd_mknotpresent() in mm/, but not all architectures have it. This patch adds the s390 version. Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Cc: Gerald Schaefer <gerald.schaefer@xxxxxxxxxx> Link: http://lkml.kernel.org/r/20121028131014.GA10754@xxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- arch/s390/include/asm/pgtable.h | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 098fc5a..b820ff1 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1310,6 +1310,12 @@ static inline pmd_t pmd_mkyoung(pmd_t pmd) return pmd; } +static inline pmd_t pmd_mknotpresent(pmd_t pmd) +{ + pmd_val(pmd) &= ~_SEGMENT_ENTRY_ORIGIN; + return pmd; +} + #define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp) -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html