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Date:   Tue,  6 Jun 2023 19:03:48 +0000
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Subject: [RFC PATCH 03/19] mm: hugetlb: Expose remove_inode_hugepages
From:   Ackerley Tng <ackerleytng@google.com>
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        Ackerley Tng <ackerleytng@google.com>
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Precedence: bulk

TODO may want to move this to hugetlb

Signed-off-by: Ackerley Tng <ackerleytng@google.com>
---
 fs/hugetlbfs/inode.c    | 3 +--
 include/linux/hugetlb.h | 4 ++++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 3dab50d3ed88..4f25df31ae80 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -611,8 +611,7 @@ static bool remove_inode_single_folio(struct hstate *h, struct inode *inode,
  * Note: If the passed end of range value is beyond the end of file, but
  * not LLONG_MAX this routine still performs a hole punch operation.
  */
-static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
-				   loff_t lend)
+void remove_inode_hugepages(struct inode *inode, loff_t lstart, loff_t lend)
 {
 	struct hstate *h = hstate_inode(inode);
 	struct address_space *mapping = &inode->i_data;
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 023293ceec25..1483020b412b 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -259,6 +259,8 @@ void hugetlb_unshare_all_pmds(struct vm_area_struct *vma);
 void hugetlb_zero_partial_page(struct hstate *h, struct address_space *mapping,
 			       loff_t start, loff_t end);
 
+void remove_inode_hugepages(struct inode *inode, loff_t lstart, loff_t lend);
+
 #else /* !CONFIG_HUGETLB_PAGE */
 
 static inline void hugetlb_dup_vma_private(struct vm_area_struct *vma)
@@ -470,6 +472,8 @@ static inline void hugetlb_unshare_all_pmds(struct vm_area_struct *vma) { }
 static inline void hugetlb_zero_partial_page(
 	struct hstate *h, struct address_space *mapping, loff_t start, loff_t end) {}
 
+static inline void remove_inode_hugepages(struct inode *inode, loff_t lstart, loff_t lend) {}
+
 #endif /* !CONFIG_HUGETLB_PAGE */
 /*
  * hugepages at page global directory. If arch support
-- 
2.41.0.rc0.172.g3f132b7071-goog