From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <491C8A6F.3000404@goop.org> Date: Thu, 13 Nov 2008 12:13:35 -0800 From: Jeremy Fitzhardinge MIME-Version: 1.0 Subject: [PATCH 3/2] mm/remap_pfn_range: restore missing flush References: <491C61B1.10005@goop.org> <20081113195341.GA8299@cmpxchg.org> In-Reply-To: <20081113195341.GA8299@cmpxchg.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Johannes Weiner Cc: Andrew Morton , Nick Piggin , Linux Memory Management List , Linux Kernel Mailing List , "Pallipadi, Venkatesh" List-ID: Restore the cache flush and BUG_ON removed in the conversion to using apply_to_page_range(). Signed-off-by: Jeremy Fitzhardinge Cc: Johannes Weiner --- mm/memory.c | 4 ++++ 1 file changed, 4 insertions(+) =================================================================== --- a/mm/memory.c +++ b/mm/memory.c @@ -1484,6 +1484,8 @@ struct remap_data *rmd = data; pte_t pte = pte_mkspecial(pfn_pte(rmd->pfn++, rmd->prot)); + BUG_ON(!pte_none(*ptep)); + set_pte_at(rmd->mm, addr, ptep, pte); return 0; @@ -1535,6 +1537,8 @@ BUG_ON(addr >= end); + flush_cache_range(vma, addr, end); + rmd.mm = mm; rmd.pfn = pfn; rmd.prot = prot; -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org