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| author | Andrea Arcangeli <aarcange@redhat.com> | 2011-01-14 00:46:38 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-14 02:32:39 +0100 |
| commit | 59ff421631295cd54dbf75dcc53d27e84af6d9c0 (patch) | |
| tree | 2570c413cd0e5938ed5e9c09d00fe026bfa63ca4 /mm/page_alloc.c | |
| parent | thp: export maybe_mkwrite (diff) | |
| download | linux-59ff421631295cd54dbf75dcc53d27e84af6d9c0.tar.xz linux-59ff421631295cd54dbf75dcc53d27e84af6d9c0.zip | |
thp: comment reminder in destroy_compound_page
Warn destroy_compound_page that __split_huge_page_refcount is heavily
dependent on its internal behavior.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/page_alloc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8be81422d4bd..6e62d5f9d40b 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -357,6 +357,7 @@ void prep_compound_page(struct page *page, unsigned long order) } } +/* update __split_huge_page_refcount if you change this function */ static int destroy_compound_page(struct page *page, unsigned long order) { int i; |