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[PATCH] mm: more rmap debugging

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Add more debugging in the rmap code in an attempt to locate to source of
the occasional "mapcount went negative" assertions.

Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Nick Piggin
2006-12-22 01:09:33 -08:00
committed by Linus Torvalds
parent 19900cdee2
commit 7de6b80579
5 changed files with 15 additions and 8 deletions
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2
include/linux/rmap.h
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@@ -72,7 +72,7 @@ void __anon_vma_link(struct vm_area_struct *);
void page_add_anon_rmap(struct page *, struct vm_area_struct *, unsigned long);
void page_add_new_anon_rmap(struct page *, struct vm_area_struct *, unsigned long);
void page_add_file_rmap(struct page *);
void page_remove_rmap(struct page *);
void page_remove_rmap(struct page *, struct vm_area_struct *);
/**
* page_dup_rmap - duplicate pte mapping to a page