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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>, linux-mm@kvack.org
Subject: [PATCH v2 1/3] mm: Move PMD_ORDER to pgtable.h
Date: Fri, 18 Aug 2023 21:23:33 +0100	[thread overview]
Message-ID: <20230818202335.2739663-2-willy@infradead.org> (raw)
In-Reply-To: <20230818202335.2739663-1-willy@infradead.org>

Allow this to be used in generic code.  Also add PUD_ORDER.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 fs/dax.c                | 3 ---
 include/linux/pgtable.h | 3 +++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/dax.c b/fs/dax.c
index 906ecbd541a3..88bb13643117 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -49,9 +49,6 @@ static inline unsigned int pe_order(enum page_entry_size pe_size)
 #define PG_PMD_COLOUR	((PMD_SIZE >> PAGE_SHIFT) - 1)
 #define PG_PMD_NR	(PMD_SIZE >> PAGE_SHIFT)
 
-/* The order of a PMD entry */
-#define PMD_ORDER	(PMD_SHIFT - PAGE_SHIFT)
-
 static wait_queue_head_t wait_table[DAX_WAIT_TABLE_ENTRIES];
 
 static int __init init_dax_wait_table(void)
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index db4fe642b3e2..cb5c1fad1078 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -5,6 +5,9 @@
 #include <linux/pfn.h>
 #include <asm/pgtable.h>
 
+#define PMD_ORDER	(PMD_SHIFT - PAGE_SHIFT)
+#define PUD_ORDER	(PUD_SHIFT - PAGE_SHIFT)
+
 #ifndef __ASSEMBLY__
 #ifdef CONFIG_MMU
 
-- 
2.40.1



  reply	other threads:[~2023-08-18 20:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-18 20:23 [PATCH v2 0/3] Change calling convention for ->huge_fault Matthew Wilcox (Oracle)
2023-08-18 20:23 ` Matthew Wilcox (Oracle) [this message]
2023-08-18 20:23 ` [PATCH v2 2/3] mm: Allow ->huge_fault() to be called without the mmap_lock held Matthew Wilcox (Oracle)
2023-08-18 20:23 ` [PATCH v2 3/3] mm: Remove enum page_entry_size Matthew Wilcox (Oracle)

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