[RFC PATCH 06/13] mm/mmap: Export 'vma_link' and 'find_vma_links' to mm subsystem
From: Till Smejkal <hidden>
Date: 2017-03-13 22:14:08
Also in:
alsa-devel, linux-api, linux-arch, linux-fsdevel, linux-mips, linux-mm, linux-s390, linuxppc-dev
Subsystem:
memory management, memory management - core, memory mapping, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Liam R. Howlett, Lorenzo Stoakes, Linus Torvalds
Make the functions 'vma_link' and 'find_vma_links' accessible to other source files in the mm/ source directory of the kernel so that other files in that directory can also perform low level changes to mm_struct data structures. Signed-off-by: Till Smejkal <redacted> --- mm/internal.h | 11 +++++++++++ mm/mmap.c | 12 ++++++------ 2 files changed, 17 insertions(+), 6 deletions(-)
diff --git a/mm/internal.h b/mm/internal.h
index 7aa2ea0a8623..e22cb031b45b 100644
--- a/mm/internal.h
+++ b/mm/internal.h@@ -76,6 +76,17 @@ static inline void set_page_refcounted(struct page *page) extern unsigned long highest_memmap_pfn; /* + * in mm/mmap.c + */ +extern void vma_link(struct mm_struct *mm, struct vm_area_struct *vma, + struct vm_area_struct *prev, struct rb_node **rb_link, + struct rb_node *rb_parent); +extern int find_vma_links(struct mm_struct *mm, unsigned long addr, + unsigned long end, struct vm_area_struct **pprev, + struct rb_node ***rb_link, + struct rb_node **rb_parent); + +/* * in mm/vmscan.c: */ extern int isolate_lru_page(struct page *page);
diff --git a/mm/mmap.c b/mm/mmap.c
index 3f60c8ebd6b6..d35c6b51cadf 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c@@ -466,9 +466,9 @@ anon_vma_interval_tree_post_update_vma(struct vm_area_struct *vma) anon_vma_interval_tree_insert(avc, &avc->anon_vma->rb_root); } -static int find_vma_links(struct mm_struct *mm, unsigned long addr, - unsigned long end, struct vm_area_struct **pprev, - struct rb_node ***rb_link, struct rb_node **rb_parent) +int find_vma_links(struct mm_struct *mm, unsigned long addr, + unsigned long end, struct vm_area_struct **pprev, + struct rb_node ***rb_link, struct rb_node **rb_parent) { struct rb_node **__rb_link, *__rb_parent, *rb_prev;
@@ -580,9 +580,9 @@ __vma_link(struct mm_struct *mm, struct vm_area_struct *vma, __vma_link_rb(mm, vma, rb_link, rb_parent); } -static void vma_link(struct mm_struct *mm, struct vm_area_struct *vma, - struct vm_area_struct *prev, struct rb_node **rb_link, - struct rb_node *rb_parent) +void vma_link(struct mm_struct *mm, struct vm_area_struct *vma, + struct vm_area_struct *prev, struct rb_node **rb_link, + struct rb_node *rb_parent) { struct address_space *mapping = NULL;
--
2.12.0
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