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From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: akpm@linux-foundation.org, mpe@ellerman.id.au
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH v2 5/9] mm/hugetlb: Move default definition of hugepd_t earlier in the header
Date: Tue, 16 May 2017 14:53:28 +0530	[thread overview]
Message-ID: <1494926612-23928-6-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1494926612-23928-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>

This enable to use the hugepd_t type early. No functional change in this patch.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 include/linux/hugetlb.h | 47 ++++++++++++++++++++++++-----------------------
 1 file changed, 24 insertions(+), 23 deletions(-)

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index edab98f0a7b8..f66c1d4e0d1f 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -14,6 +14,30 @@ struct ctl_table;
 struct user_struct;
 struct mmu_gather;
 
+#ifndef is_hugepd
+/*
+ * Some architectures requires a hugepage directory format that is
+ * required to support multiple hugepage sizes. For example
+ * a4fe3ce76 "powerpc/mm: Allow more flexible layouts for hugepage pagetables"
+ * introduced the same on powerpc. This allows for a more flexible hugepage
+ * pagetable layout.
+ */
+typedef struct { unsigned long pd; } hugepd_t;
+#define is_hugepd(hugepd) (0)
+#define __hugepd(x) ((hugepd_t) { (x) })
+static inline int gup_huge_pd(hugepd_t hugepd, unsigned long addr,
+			      unsigned pdshift, unsigned long end,
+			      int write, struct page **pages, int *nr)
+{
+	return 0;
+}
+#else
+extern int gup_huge_pd(hugepd_t hugepd, unsigned long addr,
+		       unsigned pdshift, unsigned long end,
+		       int write, struct page **pages, int *nr);
+#endif
+
+
 #ifdef CONFIG_HUGETLB_PAGE
 
 #include <linux/mempolicy.h>
@@ -222,29 +246,6 @@ static inline int pud_write(pud_t pud)
 }
 #endif
 
-#ifndef is_hugepd
-/*
- * Some architectures requires a hugepage directory format that is
- * required to support multiple hugepage sizes. For example
- * a4fe3ce76 "powerpc/mm: Allow more flexible layouts for hugepage pagetables"
- * introduced the same on powerpc. This allows for a more flexible hugepage
- * pagetable layout.
- */
-typedef struct { unsigned long pd; } hugepd_t;
-#define is_hugepd(hugepd) (0)
-#define __hugepd(x) ((hugepd_t) { (x) })
-static inline int gup_huge_pd(hugepd_t hugepd, unsigned long addr,
-			      unsigned pdshift, unsigned long end,
-			      int write, struct page **pages, int *nr)
-{
-	return 0;
-}
-#else
-extern int gup_huge_pd(hugepd_t hugepd, unsigned long addr,
-		       unsigned pdshift, unsigned long end,
-		       int write, struct page **pages, int *nr);
-#endif
-
 #define HUGETLB_ANON_FILE "anon_hugepage"
 
 enum {
-- 
2.7.4

  parent reply	other threads:[~2017-05-16  9:24 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-16  9:23 [PATCH v2 0/9] HugeTLB migration support for PPC64 Aneesh Kumar K.V
2017-05-16  9:23 ` [PATCH v2 1/9] mm/hugetlb/migration: Use set_huge_pte_at instead of set_pte_at Aneesh Kumar K.V
2017-05-16  9:23 ` [PATCH v2 2/9] mm/follow_page_mask: Split follow_page_mask to smaller functions Aneesh Kumar K.V
2017-05-16  9:23 ` [PATCH v2 3/9] mm/hugetlb: export hugetlb_entry_migration helper Aneesh Kumar K.V
2017-05-16  9:23 ` [PATCH v2 4/9] mm/follow_page_mask: Add support for hugetlb pgd entries Aneesh Kumar K.V
2017-05-16  9:23 ` Aneesh Kumar K.V [this message]
2017-05-16  9:23 ` [PATCH v2 6/9] mm/follow_page_mask: Add support for hugepage directory entry Aneesh Kumar K.V
2017-05-16  9:23 ` [PATCH v2 7/9] powerpc/hugetlb: Add follow_huge_pd implementation for ppc64 Aneesh Kumar K.V
2017-05-16  9:23 ` [PATCH v2 8/9] powerpc/mm/hugetlb: Remove follow_huge_addr for powerpc Aneesh Kumar K.V
2017-05-16  9:23 ` [PATCH v2 9/9] powerpc/hugetlb: Enable hugetlb migration for ppc64 Aneesh Kumar K.V
2018-04-26 10:35   ` Christophe LEROY
2018-05-04  8:25     ` Aneesh Kumar K.V

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