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authorNick Piggin <npiggin@suse.de>2007-02-12 03:51:36 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 12:48:27 -0500
commite0dc0d8f4a327d033bfb63d43f113d5f31d11b3c (patch)
tree7af435f3caacd18eef6e30577e61d62e0afbe4d2 /include/linux/mm.h
parent2ca48ed5cc5935cbd2a6f5d14fecd4ddbbdb4315 (diff)
[PATCH] add vm_insert_pfn()
Add a vm_insert_pfn helper, so that ->fault handlers can have nopfn functionality by installing their own pte and returning NULL. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Arnd Bergmann <arnd.bergmann@de.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 77a76101dcd9..903f3b71f4a7 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1124,6 +1124,8 @@ unsigned long vmalloc_to_pfn(void *addr);
1124int remap_pfn_range(struct vm_area_struct *, unsigned long addr, 1124int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
1125 unsigned long pfn, unsigned long size, pgprot_t); 1125 unsigned long pfn, unsigned long size, pgprot_t);
1126int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *); 1126int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *);
1127int vm_insert_pfn(struct vm_area_struct *vma, unsigned long addr,
1128 unsigned long pfn);
1127 1129
1128struct page *follow_page(struct vm_area_struct *, unsigned long address, 1130struct page *follow_page(struct vm_area_struct *, unsigned long address,
1129 unsigned int foll_flags); 1131 unsigned int foll_flags);