linux-kernel - [PATCH RFC v3 01/35] mm: page_alloc: Add gfp_flags parameter to arch_alloc

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Date: Thu, 25 Jan 2024 16:42:22 +0000
From: Alexandru Elisei <alexandru.elisei@....com>
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Subject: [PATCH RFC v3 01/35] mm: page_alloc: Add gfp_flags parameter to arch_alloc_page()

Extend the usefulness of arch_alloc_page() by adding the gfp_flags
parameter.

Signed-off-by: Alexandru Elisei <alexandru.elisei@....com>
---

Changes since rfc v2:

* New patch.

 arch/s390/include/asm/page.h | 2 +-
 arch/s390/mm/page-states.c   | 2 +-
 include/linux/gfp.h          | 2 +-
 mm/page_alloc.c              | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 73b9c3bf377f..859f0958c574 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -163,7 +163,7 @@ static inline int page_reset_referenced(unsigned long addr)
 
 struct page;
 void arch_free_page(struct page *page, int order);
-void arch_alloc_page(struct page *page, int order);
+void arch_alloc_page(struct page *page, int order, gfp_t gfp_flags);
 
 static inline int devmem_is_allowed(unsigned long pfn)
 {
diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index 01f9b39e65f5..b986c8b158e3 100644
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -21,7 +21,7 @@ void arch_free_page(struct page *page, int order)
 	__set_page_unused(page_to_virt(page), 1UL << order);
 }
 
-void arch_alloc_page(struct page *page, int order)
+void arch_alloc_page(struct page *page, int order, gfp_t gfp_flags)
 {
 	if (!cmma_flag)
 		return;
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index de292a007138..9e8aa3d144db 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -172,7 +172,7 @@ static inline struct zonelist *node_zonelist(int nid, gfp_t flags)
 static inline void arch_free_page(struct page *page, int order) { }
 #endif
 #ifndef HAVE_ARCH_ALLOC_PAGE
-static inline void arch_alloc_page(struct page *page, int order) { }
+static inline void arch_alloc_page(struct page *page, int order, gfp_t gfp_flags) { }
 #endif
 
 struct page *__alloc_pages(gfp_t gfp, unsigned int order, int preferred_nid,
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 150d4f23b010..2c140abe5ee6 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1485,7 +1485,7 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 	set_page_private(page, 0);
 	set_page_refcounted(page);
 
-	arch_alloc_page(page, order);
+	arch_alloc_page(page, order, gfp_flags);
 	debug_pagealloc_map_pages(page, 1 << order);
 
 	/*
-- 
2.43.0