[PATCH v3 02/12] mm/hugetlb: Declare hugetlbfs_pagecache_present() non-static
From: peterx@redhat.com
Date: 2024-03-21 22:08:13
Also in:
linux-arm-kernel, linux-mm, linux-riscv, lkml
Subsystem:
hugetlb subsystem, memory management, the rest · Maintainers:
Muchun Song, Oscar Salvador, Andrew Morton, Linus Torvalds
From: Peter Xu <peterx@redhat.com> It will be used outside hugetlb.c soon. Signed-off-by: Peter Xu <peterx@redhat.com> --- include/linux/hugetlb.h | 9 +++++++++ mm/hugetlb.c | 4 ++-- 2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 300de33c6fde..52d9efcf1edf 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h@@ -174,6 +174,9 @@ u32 hugetlb_fault_mutex_hash(struct address_space *mapping, pgoff_t idx); pte_t *huge_pmd_share(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, pud_t *pud); +bool hugetlbfs_pagecache_present(struct hstate *h, + struct vm_area_struct *vma, + unsigned long address); struct address_space *hugetlb_page_mapping_lock_write(struct page *hpage);
@@ -1197,6 +1200,12 @@ static inline void hugetlb_register_node(struct node *node) static inline void hugetlb_unregister_node(struct node *node) { } + +static inline bool hugetlbfs_pagecache_present( + struct hstate *h, struct vm_area_struct *vma, unsigned long address) +{ + return false; +} #endif /* CONFIG_HUGETLB_PAGE */ static inline spinlock_t *huge_pte_lock(struct hstate *h,
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 23ef240ba48a..abec04575c89 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c@@ -6129,8 +6129,8 @@ static vm_fault_t hugetlb_wp(struct mm_struct *mm, struct vm_area_struct *vma, /* * Return whether there is a pagecache page to back given address within VMA. */ -static bool hugetlbfs_pagecache_present(struct hstate *h, - struct vm_area_struct *vma, unsigned long address) +bool hugetlbfs_pagecache_present(struct hstate *h, + struct vm_area_struct *vma, unsigned long address) { struct address_space *mapping = vma->vm_file->f_mapping; pgoff_t idx = linear_page_index(vma, address);
--
2.44.0