From 01edcd891c3e9f4bb992ff2ceb69836bf76f8ddf Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 23 Nov 2005 13:37:39 -0800 Subject: [PATCH] mm: powerpc ptlock comments Update comments (only) on page_table_lock and mmap_sem in arch/powerpc. Removed the comment on page_table_lock from hash_huge_page: since it's no longer taking page_table_lock itself, it's irrelevant whether others are; but how it is safe (even against huge file truncation?) I can't say. Signed-off-by: Hugh Dickins Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/mm/hugetlbpage.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'arch/powerpc/mm/hugetlbpage.c') diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 426c269e552e..9250f14be8ef 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -754,9 +754,7 @@ repeat: } /* - * No need to use ldarx/stdcx here because all who - * might be updating the pte will hold the - * page_table_lock + * No need to use ldarx/stdcx here */ *ptep = __pte(new_pte & ~_PAGE_BUSY); -- cgit v1.2.3