lkml.org 
[lkml]   [2023]   [Mar]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 27/36] x86: Implement the new page table range API
On Wed, Mar 15, 2023 at 01:16:24PM +0200, Mike Rapoport wrote:
> On Wed, Mar 15, 2023 at 11:34:36AM +0100, Peter Zijlstra wrote:
> > On Wed, Mar 15, 2023 at 05:14:35AM +0000, Matthew Wilcox (Oracle) wrote:
> > > Add PFN_PTE_SHIFT and a noop update_mmu_cache_range().
> > >
> > > Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> > > Cc: Thomas Gleixner <tglx@linutronix.de>
> > > Cc: Ingo Molnar <mingo@redhat.com>
> > > Cc: Borislav Petkov <bp@alien8.de>
> > > Cc: Dave Hansen <dave.hansen@linux.intel.com>
> > > Cc: x86@kernel.org
> > > Cc: "H. Peter Anvin" <hpa@zytor.com>
> > > ---
> > > arch/x86/include/asm/pgtable.h | 13 ++++++-------
> > > 1 file changed, 6 insertions(+), 7 deletions(-)
> > >
> > > diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
> > > index 1031025730d0..b237878061c4 100644
> > > --- a/arch/x86/include/asm/pgtable.h
> > > +++ b/arch/x86/include/asm/pgtable.h
> > > @@ -184,6 +184,8 @@ static inline int pte_special(pte_t pte)
> > >
> > > static inline u64 protnone_mask(u64 val);
> > >
> > > +#define PFN_PTE_SHIFT PAGE_SHIFT
> > > +
> > > static inline unsigned long pte_pfn(pte_t pte)
> > > {
> > > phys_addr_t pfn = pte_val(pte);
> > > @@ -1019,13 +1021,6 @@ static inline pud_t native_local_pudp_get_and_clear(pud_t *pudp)
> > > return res;
> > > }
> > >
> > > -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
> > > - pte_t *ptep, pte_t pte)
> > > -{
> > > - page_table_check_ptes_set(mm, addr, ptep, pte, 1);
> > > - set_pte(ptep, pte);
> > > -}
> > > -
> >
> > And remove set_pte_at() apparently.. whut?!?
>
> It's now in include/linux/pgtable.h

All I have is this one patch -- and the changelog doesn't mention this.
HTF am I supposed to know that?

\
 
 \ /
  Last update: 2023-03-27 01:01    [W:0.185 / U:0.204 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site