linux-kernel - [RFC PATCH 01/26] hugetlb: make hstate accessor functions const

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Message-Id: <20220624173656.2033256-2-jthoughton@google.com>
Date:   Fri, 24 Jun 2022 17:36:31 +0000
From:   James Houghton <jthoughton@...gle.com>
To:     Mike Kravetz <mike.kravetz@...cle.com>,
        Muchun Song <songmuchun@...edance.com>,
        Peter Xu <peterx@...hat.com>
Cc:     David Hildenbrand <david@...hat.com>,
        David Rientjes <rientjes@...gle.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Mina Almasry <almasrymina@...gle.com>,
        Jue Wang <juew@...gle.com>,
        Manish Mishra <manish.mishra@...anix.com>,
        "Dr . David Alan Gilbert" <dgilbert@...hat.com>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        James Houghton <jthoughton@...gle.com>
Subject: [RFC PATCH 01/26] hugetlb: make hstate accessor functions const

This is just a const-correctness change so that the new hugetlb_pte
changes can be const-correct too.

Acked-by: David Rientjes <rientjes@...gle.com>

Signed-off-by: James Houghton <jthoughton@...gle.com>
---
 include/linux/hugetlb.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index e4cff27d1198..498a4ae3d462 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -715,7 +715,7 @@ static inline struct hstate *hstate_vma(struct vm_area_struct *vma)
 	return hstate_file(vma->vm_file);
 }
 
-static inline unsigned long huge_page_size(struct hstate *h)
+static inline unsigned long huge_page_size(const struct hstate *h)
 {
 	return (unsigned long)PAGE_SIZE << h->order;
 }
@@ -729,27 +729,27 @@ static inline unsigned long huge_page_mask(struct hstate *h)
 	return h->mask;
 }
 
-static inline unsigned int huge_page_order(struct hstate *h)
+static inline unsigned int huge_page_order(const struct hstate *h)
 {
 	return h->order;
 }
 
-static inline unsigned huge_page_shift(struct hstate *h)
+static inline unsigned huge_page_shift(const struct hstate *h)
 {
 	return h->order + PAGE_SHIFT;
 }
 
-static inline bool hstate_is_gigantic(struct hstate *h)
+static inline bool hstate_is_gigantic(const struct hstate *h)
 {
 	return huge_page_order(h) >= MAX_ORDER;
 }
 
-static inline unsigned int pages_per_huge_page(struct hstate *h)
+static inline unsigned int pages_per_huge_page(const struct hstate *h)
 {
 	return 1 << h->order;
 }
 
-static inline unsigned int blocks_per_huge_page(struct hstate *h)
+static inline unsigned int blocks_per_huge_page(const struct hstate *h)
 {
 	return huge_page_size(h) / 512;
 }
-- 
2.37.0.rc0.161.g10f37bed90-goog