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authorLinus Torvalds <torvalds@g5.osdl.org>2005-11-30 09:35:19 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-30 09:35:19 -0800
commita145dd411eb28c83ee4bb68b66f62c326c0f764e (patch)
treed88745d3839f501e59cf9ada5274777af939aa2d /include
parentf8e988436b9d83b20bc5cc378f1a8034816ae6a6 (diff)
downloadop-kernel-dev-a145dd411eb28c83ee4bb68b66f62c326c0f764e.zip
op-kernel-dev-a145dd411eb28c83ee4bb68b66f62c326c0f764e.tar.gz
VM: add "vm_insert_page()" function
This is what a lot of drivers will actually want to use to insert individual pages into a user VMA. It doesn't have the old PageReserved restrictions of remap_pfn_range(), and it doesn't complain about partial remappings. The page you insert needs to be a nice clean kernel allocation, so you can't insert arbitrary page mappings with this, but that's not what people want. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0e73f15..29f02d8 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -956,6 +956,7 @@ struct page *vmalloc_to_page(void *addr);
unsigned long vmalloc_to_pfn(void *addr);
int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
unsigned long pfn, unsigned long size, pgprot_t);
+int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *);
struct page *follow_page(struct vm_area_struct *, unsigned long address,
unsigned int foll_flags);
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