From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Thu, 7 Jul 2011 09:15:37 +0100 Subject: [PATCH] remove unnecessary cache flush on v6 copypage In-Reply-To: References: Message-ID: <20110707081537.GG8286@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Jul 06, 2011 at 07:19:59PM -0700, heechul Yun wrote: > ARM: mm: remove unnecessary cache flush on v6 copypage > > Signed-off-by: Heechul Yun > -- > arch/arm/mm/copypage-v6.c | 1 - > 1 files changed, 0 insertions(+), 1 deletions(-) > > diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c > index bdba6c6..63cca00 100644 > --- a/arch/arm/mm/copypage-v6.c > +++ b/arch/arm/mm/copypage-v6.c > @@ -41,7 +41,6 @@ static void v6_copy_user_highpage_nonaliasing(struct page *to, > kfrom = kmap_atomic(from, KM_USER0); > kto = kmap_atomic(to, KM_USER1); > copy_page(kto, kfrom); > - __cpuc_flush_dcache_area(kto, PAGE_SIZE); > kunmap_atomic(kto, KM_USER1); > kunmap_atomic(kfrom, KM_USER0); > } Patch looks good, except that it's whitespace damaged (the tabs are replaced by spaces) which makes it hard to apply. Could you try to sort that out. Documentation/email-clients.txt in the kernel tree may help with that. I assume Catalin will (eventually) provide an ack - and at that point please submit it (in non-whitespace damaged form) to the patch system, thanks.