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From: Leonardo Bras <leobras@redhat.com>
To: Guo Ren <guoren@kernel.org>
Cc: Leonardo Bras <leobras@redhat.com>,
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	Guo Ren <guoren@linux.alibaba.com>
Subject: Re: [PATCH V2 3/4] riscv: mm: Remove unused TASK_SIZE_MIN
Date: Fri, 22 Dec 2023 04:22:10 -0300
Message-ID: <ZYU5InA7WcpGKaRF@LeoBras>
In-Reply-To: <CAJF2gTQSZSWJ7qZQckuALHkcJb8kEGTnb8wJQ9H2wgODkN56Lw@mail.gmail.com>
References: <20231221154702.2267684-1-guoren@kernel.org> <20231221154702.2267684-4-guoren@kernel.org> <ZYUVTFqvIIqv7D9O@LeoBras> <CAJF2gTQSZSWJ7qZQckuALHkcJb8kEGTnb8wJQ9H2wgODkN56Lw@mail.gmail.com>
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On Fri, Dec 22, 2023 at 03:16:45PM +0800, Guo Ren wrote:
> On Fri, Dec 22, 2023 at 12:49 PM Leonardo Bras <leobras@redhat.com> wrote:
> >
> > On Thu, Dec 21, 2023 at 10:47:00AM -0500, guoren@kernel.org wrote:
> > > From: Guo Ren <guoren@linux.alibaba.com>
> > >
> > > Remove TASK_SIZE_MIN because it's not used anymore.
> > >
> > > Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
> > > Signed-off-by: Guo Ren <guoren@kernel.org>
> > > ---
> > >  arch/riscv/include/asm/pgtable.h | 2 --
> > >  1 file changed, 2 deletions(-)
> > >
> > > diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
> > > index 74ffb2178f54..e415582276ec 100644
> > > --- a/arch/riscv/include/asm/pgtable.h
> > > +++ b/arch/riscv/include/asm/pgtable.h
> > > @@ -878,7 +878,6 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte)
> > >   */
> > >  #ifdef CONFIG_64BIT
> > >  #define TASK_SIZE_64 (PGDIR_SIZE * PTRS_PER_PGD / 2)
> > > -#define TASK_SIZE_MIN        (PGDIR_SIZE_L3 * PTRS_PER_PGD / 2)
> > >
> > >  #ifdef CONFIG_COMPAT
> > >  #define TASK_SIZE_32 (_AC(0x80000000, UL))
> > > @@ -890,7 +889,6 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte)
> > >
> > >  #else
> > >  #define TASK_SIZE    FIXADDR_START
> > > -#define TASK_SIZE_MIN        TASK_SIZE
> > >  #endif
> > >
> > >  #else /* CONFIG_MMU */
> > > --
> > > 2.40.1
> > >
> >
> > On torvalds/master:
> >
> > $git grep TASK_SIZE_MIN
> > arch/loongarch/include/asm/processor.h:23:#define TASK_SIZE_MIN TASK_SIZE
> > arch/loongarch/include/asm/processor.h:36:#define TASK_SIZE_MIN TASK_SIZE32
> > arch/riscv/include/asm/pgtable.h:881:#define TASK_SIZE_MIN      (PGDIR_SIZE_L3 * PTRS_PER_PGD / 2)
> > arch/riscv/include/asm/pgtable.h:893:#define TASK_SIZE_MIN      TASK_SIZE
> >
> > I can only see definitions, without any usage, so agreed on removing them.
> >
> > FWIW:
> > Reviewed-by: Leonardo Bras <leobras@redhat.com>
> Thx
> 
> >
> > I would also send a patch for loongarch, since they are in the same boat :)
> Eh... I've sent one yesterday together.
> 
> https://lore.kernel.org/loongarch/20231221054624.2208019-1-guoren@kernel.org/

Awesome! :)

> 
> >
> > Thanks!
> > Leo
> >
> 
> 
> -- 
> Best Regards
>  Guo Ren
>