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authorMatthew Wilcox (Oracle) <willy@infradead.org>2021-11-28 14:53:35 -0500
committerMatthew Wilcox (Oracle) <willy@infradead.org>2022-01-08 00:28:32 -0500
commit3506659e18a61ae525f3b9b4f5af23b4b149d4db (patch)
treea6edd50d2dcb142c0e1d2a0c3f5fb8afcaf0d91a /include/linux/mm.h
parentefe99bba2862aef24f1b05b786f6bf5acb076209 (diff)
mm: Add unmap_mapping_folio()
Convert both callers of unmap_mapping_page() to call unmap_mapping_folio() instead. Also move zap_details from linux/mm.h to mm/memory.c Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h24
1 files changed, 0 insertions, 24 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 145f045b0ddc..c9cdb26802fb 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1825,28 +1825,6 @@ static inline bool can_do_mlock(void) { return false; }
extern int user_shm_lock(size_t, struct ucounts *);
extern void user_shm_unlock(size_t, struct ucounts *);
-/*
- * Parameter block passed down to zap_pte_range in exceptional cases.
- */
-struct zap_details {
- struct address_space *zap_mapping; /* Check page->mapping if set */
- struct page *single_page; /* Locked page to be unmapped */
-};
-
-/*
- * We set details->zap_mappings when we want to unmap shared but keep private
- * pages. Return true if skip zapping this page, false otherwise.
- */
-static inline bool
-zap_skip_check_mapping(struct zap_details *details, struct page *page)
-{
- if (!details || !page)
- return false;
-
- return details->zap_mapping &&
- (details->zap_mapping != page_rmapping(page));
-}
-
struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
pte_t pte);
struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr,
@@ -1892,7 +1870,6 @@ extern vm_fault_t handle_mm_fault(struct vm_area_struct *vma,
extern int fixup_user_fault(struct mm_struct *mm,
unsigned long address, unsigned int fault_flags,
bool *unlocked);
-void unmap_mapping_page(struct page *page);
void unmap_mapping_pages(struct address_space *mapping,
pgoff_t start, pgoff_t nr, bool even_cows);
void unmap_mapping_range(struct address_space *mapping,
@@ -1913,7 +1890,6 @@ static inline int fixup_user_fault(struct mm_struct *mm, unsigned long address,
BUG();
return -EFAULT;
}
-static inline void unmap_mapping_page(struct page *page) { }
static inline void unmap_mapping_pages(struct address_space *mapping,
pgoff_t start, pgoff_t nr, bool even_cows) { }
static inline void unmap_mapping_range(struct address_space *mapping,