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Sat, 07 Sep 2019 10:25:31 -0700 (PDT) Subject: [PATCH v9 3/8] mm: Move set/get_pcppage_migratetype to mmzone.h From: Alexander Duyck To: virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org, mst@redhat.com, catalin.marinas@arm.com, david@redhat.com, dave.hansen@intel.com, linux-kernel@vger.kernel.org, willy@infradead.org, mhocko@kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, will@kernel.org, linux-arm-kernel@lists.infradead.org, osalvador@suse.de Date: Sat, 07 Sep 2019 10:25:28 -0700 Message-ID: <20190907172528.10910.37051.stgit@localhost.localdomain> In-Reply-To: <20190907172225.10910.34302.stgit@localhost.localdomain> References: <20190907172225.10910.34302.stgit@localhost.localdomain> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190907_102532_596413_EB463261 X-CRM114-Status: GOOD ( 16.83 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: yang.zhang.wz@gmail.com, pagupta@redhat.com, riel@surriel.com, konrad.wilk@oracle.com, ying.huang@intel.com, lcapitulino@redhat.com, wei.w.wang@intel.com, aarcange@redhat.com, nitesh@redhat.com, pbonzini@redhat.com, dan.j.williams@intel.com, fengguang.wu@intel.com, alexander.h.duyck@linux.intel.com, kirill.shutemov@linux.intel.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Alexander Duyck In order to support page reporting it will be necessary to store and retrieve the migratetype of a page. To enable that I am moving the set and get operations for pcppage_migratetype into the mm/internal.h header so that they can be used outside of the page_alloc.c file. Reviewed-by: Dan Williams Signed-off-by: Alexander Duyck --- mm/internal.h | 18 ++++++++++++++++++ mm/page_alloc.c | 18 ------------------ 2 files changed, 18 insertions(+), 18 deletions(-) diff --git a/mm/internal.h b/mm/internal.h index 0d5f720c75ab..e4a1a57bbd40 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -549,6 +549,24 @@ static inline bool is_migrate_highatomic_page(struct page *page) return get_pageblock_migratetype(page) == MIGRATE_HIGHATOMIC; } +/* + * A cached value of the page's pageblock's migratetype, used when the page is + * put on a pcplist. Used to avoid the pageblock migratetype lookup when + * freeing from pcplists in most cases, at the cost of possibly becoming stale. + * Also the migratetype set in the page does not necessarily match the pcplist + * index, e.g. page might have MIGRATE_CMA set but be on a pcplist with any + * other index - this ensures that it will be put on the correct CMA freelist. + */ +static inline int get_pcppage_migratetype(struct page *page) +{ + return page->index; +} + +static inline void set_pcppage_migratetype(struct page *page, int migratetype) +{ + page->index = migratetype; +} + void setup_zone_pageset(struct zone *zone); extern struct page *alloc_new_node_page(struct page *page, unsigned long node); #endif /* __MM_INTERNAL_H */ diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 4e4356ba66c7..a791f2baeeeb 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -185,24 +185,6 @@ static int __init early_init_on_free(char *buf) } early_param("init_on_free", early_init_on_free); -/* - * A cached value of the page's pageblock's migratetype, used when the page is - * put on a pcplist. Used to avoid the pageblock migratetype lookup when - * freeing from pcplists in most cases, at the cost of possibly becoming stale. - * Also the migratetype set in the page does not necessarily match the pcplist - * index, e.g. page might have MIGRATE_CMA set but be on a pcplist with any - * other index - this ensures that it will be put on the correct CMA freelist. - */ -static inline int get_pcppage_migratetype(struct page *page) -{ - return page->index; -} - -static inline void set_pcppage_migratetype(struct page *page, int migratetype) -{ - page->index = migratetype; -} - #ifdef CONFIG_PM_SLEEP /* * The following functions are used by the suspend/hibernate code to temporarily _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel