Re: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

On Wed 11-04-18 12:32:07, Laurent Dufour wrote: [...] > Andrew, should I send a v4 or could you wipe the 2 __maybe_unsued when > applying > the patch ? A follow $patch-fix should be better rather than post this again and spam people with more emails. -- Michal Hocko SUSE Labs

Re: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

On 11/04/2018 11:09, Christophe LEROY wrote: > > > Le 11/04/2018 à 11:03, Laurent Dufour a écrit : >> >> >> On 11/04/2018 10:58, Christophe LEROY wrote: >>> >>> >>> Le 11/04/2018 à 10:03, Laurent Dufour a écrit : Remove the additional define HAVE_PTE_SPECIAL and rely directly on

Re: [PATCH] bug.h: Work around GCC PR82365 in BUG()

On Wed, Apr 11, 2018 at 12:08:51PM +0200, Arnd Bergmann wrote: > On Wed, Apr 11, 2018 at 11:54 AM, James Hogan wrote: > > On Wed, Apr 11, 2018 at 09:30:56AM +0200, Arnd Bergmann wrote: > >> On Wed, Apr 11, 2018 at 12:48 AM, James Hogan wrote: > >> > Before I

Re: [PATCH] bug.h: Work around GCC PR82365 in BUG()

On Wed, Apr 11, 2018 at 11:54 AM, James Hogan wrote: > On Wed, Apr 11, 2018 at 09:30:56AM +0200, Arnd Bergmann wrote: >> On Wed, Apr 11, 2018 at 12:48 AM, James Hogan wrote: >> > Before I forward port those patches to add .insn for MIPS, is that sort >> > of

Re: [PATCH] bug.h: Work around GCC PR82365 in BUG()

On Wed, Apr 11, 2018 at 09:30:56AM +0200, Arnd Bergmann wrote: > On Wed, Apr 11, 2018 at 12:48 AM, James Hogan wrote: > > Before I forward port those patches to add .insn for MIPS, is that sort > > of approach (an arch specific asm/compiler-gcc.h to allow MIPS to > > override

Re: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

Le 11/04/2018 à 11:03, Laurent Dufour a écrit : On 11/04/2018 10:58, Christophe LEROY wrote: Le 11/04/2018 à 10:03, Laurent Dufour a écrit : Remove the additional define HAVE_PTE_SPECIAL and rely directly on CONFIG_ARCH_HAS_PTE_SPECIAL. There is no functional change introduced by this

Re: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

Le 11/04/2018 à 10:03, Laurent Dufour a écrit : Remove the additional define HAVE_PTE_SPECIAL and rely directly on CONFIG_ARCH_HAS_PTE_SPECIAL. There is no functional change introduced by this patch Signed-off-by: Laurent Dufour --- mm/memory.c | 19

Re: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

On 11/04/2018 10:58, Christophe LEROY wrote: > > > Le 11/04/2018 à 10:03, Laurent Dufour a écrit : >> Remove the additional define HAVE_PTE_SPECIAL and rely directly on >> CONFIG_ARCH_HAS_PTE_SPECIAL. >> >> There is no functional change introduced by this patch >> >> Signed-off-by: Laurent

Re: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

Le 11/04/2018 à 10:41, Laurent Dufour a écrit : On 11/04/2018 10:33, Michal Hocko wrote: On Wed 11-04-18 10:03:36, Laurent Dufour wrote: @@ -881,7 +876,8 @@ struct page *_vm_normal_page(struct vm_area_struct *vma, unsigned long addr, if (is_zero_pfn(pfn)) return NULL;

Re: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

On Wed 11-04-18 10:41:23, Laurent Dufour wrote: > On 11/04/2018 10:33, Michal Hocko wrote: > > On Wed 11-04-18 10:03:36, Laurent Dufour wrote: > >> @@ -881,7 +876,8 @@ struct page *_vm_normal_page(struct vm_area_struct > >> *vma, unsigned long addr, > >> > >>if (is_zero_pfn(pfn)) > >>

Re: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

On 11/04/2018 10:33, Michal Hocko wrote: > On Wed 11-04-18 10:03:36, Laurent Dufour wrote: >> @@ -881,7 +876,8 @@ struct page *_vm_normal_page(struct vm_area_struct *vma, >> unsigned long addr, >> >> if (is_zero_pfn(pfn)) >> return NULL; >> -check_pfn: >> + >> +check_pfn:

Re: [PATCH v3 1/2] mm: introduce ARCH_HAS_PTE_SPECIAL

On Wed 11-04-18 10:03:35, Laurent Dufour wrote: > Currently the PTE special supports is turned on in per architecture header > files. Most of the time, it is defined in arch/*/include/asm/pgtable.h > depending or not on some other per architecture static definition. > > This patch introduce a new

Re: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

On Wed 11-04-18 10:03:36, Laurent Dufour wrote: > @@ -881,7 +876,8 @@ struct page *_vm_normal_page(struct vm_area_struct *vma, > unsigned long addr, > > if (is_zero_pfn(pfn)) > return NULL; > -check_pfn: > + > +check_pfn: __maybe_unused > if (unlikely(pfn >

[PATCH v3 1/2] mm: introduce ARCH_HAS_PTE_SPECIAL

Currently the PTE special supports is turned on in per architecture header files. Most of the time, it is defined in arch/*/include/asm/pgtable.h depending or not on some other per architecture static definition. This patch introduce a new configuration variable to manage this directly in the

[PATCH v3 0/2] move __HAVE_ARCH_PTE_SPECIAL in Kconfig

The per architecture __HAVE_ARCH_PTE_SPECIAL is defined statically in the per architecture header files. This doesn't allow to make other configuration dependent on it. The first patch of this series is replacing __HAVE_ARCH_PTE_SPECIAL by CONFIG_ARCH_HAS_PTE_SPECIAL defined into the Kconfig

[PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL

Remove the additional define HAVE_PTE_SPECIAL and rely directly on CONFIG_ARCH_HAS_PTE_SPECIAL. There is no functional change introduced by this patch Signed-off-by: Laurent Dufour --- mm/memory.c | 19 --- 1 file changed, 8 insertions(+), 11

Re: [PATCH] bug.h: Work around GCC PR82365 in BUG()

On Wed, Apr 11, 2018 at 12:48 AM, James Hogan wrote: > Hi Arnd, > > On Tue, Dec 19, 2017 at 12:39:33PM +0100, Arnd Bergmann wrote: >> diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h >> index 5d595cfdb2c4..66cfdad68f7e 100644 >> ---