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| author | Nick Piggin <npiggin@suse.de> | 2007-05-16 22:11:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-17 05:23:06 -0700 |
| commit | c97a9e10eaee328e6eea9f76acf7bacd7d48ef56 (patch) | |
| tree | f14bf796d087e130452a2e2457c75eb1eca27483 /mm/memory.c | |
| parent | ea125892a17f43919c726777ed1e4929d41e7984 (diff) | |
| download | linux-c97a9e10eaee328e6eea9f76acf7bacd7d48ef56.tar.gz linux-c97a9e10eaee328e6eea9f76acf7bacd7d48ef56.tar.bz2 linux-c97a9e10eaee328e6eea9f76acf7bacd7d48ef56.zip | |
mm: more rmap checking
Re-introduce rmap verification patches that Hugh removed when he removed
PG_map_lock. PG_map_lock actually isn't needed to synchronise access to
anonymous pages, because PG_locked and PTL together already do.
These checks were important in discovering and fixing a rare rmap corruption
in SLES9.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory.c b/mm/memory.c index 1d647ab0ee72..cb94488ab96d 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -481,7 +481,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm, page = vm_normal_page(vma, addr, pte); if (page) { get_page(page); - page_dup_rmap(page); + page_dup_rmap(page, vma, addr); rss[!!PageAnon(page)]++; } |