linux-kernel - Re: [PATCH v18 00/12] Support page table check on PowerPC

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Message-ID: <b6c39059-faed-41a8-80b2-addaa229c143@kernel.org>
Date: Wed, 14 Jan 2026 10:34:22 +0100
From: "Christophe Leroy (CS GROUP)" <chleroy@...nel.org>
To: Andrew Donnellan <ajd@...ux.ibm.com>,
 Pasha Tatashin <pasha.tatashin@...een.com>
Cc: linux-mm@...ck.org, linuxppc-dev@...ts.ozlabs.org,
 Andrew Morton <akpm@...ux-foundation.org>,
 Madhavan Srinivasan <maddy@...ux.ibm.com>,
 Nicholas Piggin <npiggin@...il.com>, Rohan McLure <rmclure@...dia.com>,
 Alexandre Ghiti <alex@...ti.fr>, x86@...nel.org,
 Nicholas Miehlbradt <nicholas@...ux.ibm.com>,
 Sweet Tea Dorminy <sweettea-kernel@...miny.me>,
 Andrew Donnellan <andrew+kernel@...nellan.id.au>,
 Srish Srinivasan <ssrish@...ux.ibm.com>,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v18 00/12] Support page table check on PowerPC



Le 14/01/2026 à 06:00, Andrew Donnellan a écrit :
> On Thu, 2025-12-18 at 12:55 -0500, Pasha Tatashin wrote:
>> Thank you. This series looks good to me.
> 
> Thanks for the review!
> 
> Maddy, Christophe: any further comments from the PPC side?

No further comments from my side.

> 
> Do we think we can get this in in the current cycle? My last day at IBM is this
> Friday, if a further respin is needed then Srish will need to handle it as I
> don't have any access to powerpc hardware outside of work (happy to provide what
> help I can from the outside though).
> 

What is the merge plan ? I see all powerpc commits are acked by Maddy, 
will the series be merged by Andrew into the mm tree ?

By the way it doesn't apply on top of powerpc/merge branch:

$ b4 shazam bf0def77b07a34c00928cedb46030ea17be4fceb.camel@...ux.ibm.com
Grabbing thread from 
lore.kernel.org/all/bf0def77b07a34c00928cedb46030ea17be4fceb.camel@...ux.ibm.com/t.mbox.gz
Checking for newer revisions
Grabbing search results from lore.kernel.org
Analyzing 17 messages in the thread
Looking for additional code-review trailers on lore.kernel.org
Analyzing 86 code-review messages
Checking attestation on all messages, may take a moment...
---
   ✓ [PATCH v18 1/12] arm64/mm: Add addr parameter to __set_ptes_anysz()
     + Reviewed-by: Pasha Tatashin <pasha.tatashin@...een.com> (✗ 
DKIM/soleen.com)
   ✓ [PATCH v18 2/12] arm64/mm: Add addr parameter to 
__ptep_get_and_clear_anysz()
     + Reviewed-by: Pasha Tatashin <pasha.tatashin@...een.com> (✗ 
DKIM/soleen.com)
   ✓ [PATCH v18 3/12] mm/page_table_check: Reinstate address parameter 
in [__]page_table_check_pud[s]_set()
   ✓ [PATCH v18 4/12] mm/page_table_check: Reinstate address parameter 
in [__]page_table_check_pmd[s]_set()
   ✓ [PATCH v18 5/12] mm/page_table_check: Provide addr parameter to 
page_table_check_ptes_set()
   ✓ [PATCH v18 6/12] mm/page_table_check: Reinstate address parameter 
in [__]page_table_check_pud_clear()
   ✓ [PATCH v18 7/12] mm/page_table_check: Reinstate address parameter 
in [__]page_table_check_pmd_clear()
   ✓ [PATCH v18 8/12] mm/page_table_check: Reinstate address parameter 
in [__]page_table_check_pte_clear()
   ✓ [PATCH v18 9/12] mm: Provide address parameter to 
p{te,md,ud}_user_accessible_page()
   ✓ [PATCH v18 10/12] powerpc/mm: Implement *_user_accessible_page() 
for ptes
   ✓ [PATCH v18 11/12] powerpc/mm: Use set_pte_at_unchecked() for 
internal usages
   ✓ [PATCH v18 12/12] powerpc/mm: Support page table check
   ---
   ✓ Signed: DKIM/ibm.com (From: ajd@...ux.ibm.com)
---
Total patches: 12
---
  Base: base-commit c224625ec6f8a0476ffffc09807f4d717ba9cc93 not known, 
ignoring
Application de  arm64/mm: Add addr parameter to __set_ptes_anysz()
Application de  arm64/mm: Add addr parameter to __ptep_get_and_clear_anysz()
Application de  mm/page_table_check: Reinstate address parameter in 
[__]page_table_check_pud[s]_set()
Application de  mm/page_table_check: Reinstate address parameter in 
[__]page_table_check_pmd[s]_set()
Application de  mm/page_table_check: Provide addr parameter to 
page_table_check_ptes_set()
Application de  mm/page_table_check: Reinstate address parameter in 
[__]page_table_check_pud_clear()
Application de  mm/page_table_check: Reinstate address parameter in 
[__]page_table_check_pmd_clear()
l'application de la rustine a échoué à 0007 mm/page_table_check: 
Reinstate address parameter in [__]page_table_check_pmd_clear()
erreur : l'application de la rustine a échoué : 
arch/riscv/include/asm/pgtable.h:999
erreur : arch/riscv/include/asm/pgtable.h : la rustine ne s'applique pas
astuce : Utilisez 'git am --show-current-patch=diff' pour visualiser la 
rustine en échec
astuce : Quand vous avez résolu ce problème, lancez "git am --continue".
astuce : Si vous préférez plutôt sauter cette rustine, lancez "git am 
--skip".
astuce : Pour restaurer la branche originale et arrêter d'appliquer des 
rustines, lancez "git am --abort".
astuce : Disable this message with "git config set advice.mergeConflict 
false"

Christophe