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| From | Minchan Kim <minchan@kernel.org> |
| Newsgroups | linux.kernel |
| Subject | [PATCH v4 09/16] powerpc: add pmd_[dirty|mkclean] for THP |
| Date | Fri, 20 Nov 2015 09:10:03 +0100 |
| Message-ID | <qwOVB-4AF-41@gated-at.bofh.it> (permalink) |
| References | <qwOVA-4AF-7@gated-at.bofh.it> |
| X-Original-To | Andrew Morton <akpm@linux-foundation.org> |
| X-Original-Senderip | 156.147.1.121 |
| X-Original-Mailfrom | minchan@kernel.org |
| X-Original-Senderip | 10.177.223.161 |
| X-Original-Mailfrom | minchan@kernel.org |
| X-Mailer | git-send-email 1.9.1 |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 36 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | linux-kernel@vger.kernel.org, linux-mm@kvack.org, Michael Kerrisk <mtk.manpages@gmail.com>, linux-api@vger.kernel.org, Hugh Dickins <hughd@google.com>, Johannes Weiner <hannes@cmpxchg.org>, Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>, KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, Jason Evans <je@fb.com>, Daniel Micay <danielmicay@gmail.com>, "Kirill A. Shutemov" <kirill@shutemov.name>, Shaohua Li <shli@kernel.org>, Michal Hocko <mhocko@suse.cz>, yalin.wang2010@gmail.com, Andy Lutomirski <luto@amacapital.net>, Minchan Kim <minchan@kernel.org> |
| X-Original-Date | Fri, 20 Nov 2015 17:02:41 +0900 |
| X-Original-Message-ID | <1448006568-16031-10-git-send-email-minchan@kernel.org> |
| X-Original-References | <1448006568-16031-1-git-send-email-minchan@kernel.org> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1273790 |
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MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent overwrite of the contents since MADV_FREE syscall is called for THP page. This patch adds pmd_dirty and pmd_mkclean for THP page MADV_FREE support. Signed-off-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> --- arch/powerpc/include/asm/pgtable-ppc64.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h index fa1dfb7f7b48..85e15c8067be 100644 --- a/arch/powerpc/include/asm/pgtable-ppc64.h +++ b/arch/powerpc/include/asm/pgtable-ppc64.h @@ -507,9 +507,11 @@ static inline pte_t *pmdp_ptep(pmd_t *pmd) #define pmd_pfn(pmd) pte_pfn(pmd_pte(pmd)) #define pmd_dirty(pmd) pte_dirty(pmd_pte(pmd)) #define pmd_young(pmd) pte_young(pmd_pte(pmd)) +#define pmd_dirty(pmd) pte_dirty(pmd_pte(pmd)) #define pmd_mkold(pmd) pte_pmd(pte_mkold(pmd_pte(pmd))) #define pmd_wrprotect(pmd) pte_pmd(pte_wrprotect(pmd_pte(pmd))) #define pmd_mkdirty(pmd) pte_pmd(pte_mkdirty(pmd_pte(pmd))) +#define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd))) #define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd))) #define pmd_mkwrite(pmd) pte_pmd(pte_mkwrite(pmd_pte(pmd))) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v4 09/16] powerpc: add pmd_[dirty|mkclean] for THP Minchan Kim <minchan@kernel.org> - 2015-11-20 09:10 +0100
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