linux-kernel - [PATCH 0/5] mm/treewide: Replace pXd_large() with pXd

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Message-ID: <20240228085350.520953-1-peterx@redhat.com>
Date: Wed, 28 Feb 2024 16:53:45 +0800
From: peterx@...hat.com
To: linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Cc: Yang Shi <shy828301@...il.com>,
	Muchun Song <muchun.song@...ux.dev>,
	Jason Gunthorpe <jgg@...dia.com>,
	x86@...nel.org,
	"Kirill A . Shutemov" <kirill@...temov.name>,
	linuxppc-dev@...ts.ozlabs.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	peterx@...hat.com
Subject: [PATCH 0/5] mm/treewide: Replace pXd_large() with pXd_leaf()

From: Peter Xu <peterx@...hat.com>

[based on latest akpm/mm-unstable, commit 1274e7646240]

These two APIs are mostly always the same.  It's confusing to have both of
them.  Merge them into one.  Here I used pXd_leaf() only because pXd_leaf()
is a global API which is always defined, while pXd_large() is not.

We have yet one more API that is similar which is pXd_huge(), but that's
even trickier, so let's do it step by step.

Some cautions are needed on either x86 or ppc: x86 is currently the only
user of p4d_large(), while ppc used to define pXd_large() only with THP,
while it is not the case for pXd_leaf().  For the rest archs, afaict
they're 100% identical.

Only lightly tested on x86.

Please have a look, thanks.

Peter Xu (5):
  mm/ppc: Define pXd_large() with pXd_leaf()
  mm/x86: Replace p4d_large() with p4d_leaf()
  mm/treewide: Replace pmd_large() with pmd_leaf()
  mm/treewide: Replace pud_large() with pud_leaf()
  mm/treewide: Drop pXd_large()

 arch/arm/include/asm/pgtable-2level.h        |  1 -
 arch/arm/include/asm/pgtable-3level.h        |  1 -
 arch/arm/mm/dump.c                           |  4 ++--
 arch/powerpc/include/asm/book3s/64/pgtable.h | 14 --------------
 arch/powerpc/include/asm/pgtable.h           |  4 ----
 arch/powerpc/mm/book3s64/pgtable.c           |  4 ++--
 arch/powerpc/mm/book3s64/radix_pgtable.c     |  2 +-
 arch/powerpc/mm/pgtable_64.c                 |  2 +-
 arch/s390/boot/vmem.c                        |  4 ++--
 arch/s390/include/asm/pgtable.h              | 20 ++++++++++----------
 arch/s390/mm/gmap.c                          | 14 +++++++-------
 arch/s390/mm/hugetlbpage.c                   |  6 +++---
 arch/s390/mm/pageattr.c                      |  4 ++--
 arch/s390/mm/pgtable.c                       |  8 ++++----
 arch/s390/mm/vmem.c                          | 12 ++++++------
 arch/sparc/include/asm/pgtable_64.h          |  8 ++++----
 arch/sparc/mm/init_64.c                      |  6 +++---
 arch/x86/boot/compressed/ident_map_64.c      |  2 +-
 arch/x86/include/asm/pgtable.h               | 15 +++++++--------
 arch/x86/kvm/mmu/mmu.c                       |  4 ++--
 arch/x86/mm/fault.c                          | 16 ++++++++--------
 arch/x86/mm/ident_map.c                      |  2 +-
 arch/x86/mm/init_32.c                        |  2 +-
 arch/x86/mm/init_64.c                        | 14 +++++++-------
 arch/x86/mm/kasan_init_64.c                  |  4 ++--
 arch/x86/mm/mem_encrypt_identity.c           |  6 +++---
 arch/x86/mm/pat/set_memory.c                 | 14 +++++++-------
 arch/x86/mm/pgtable.c                        |  4 ++--
 arch/x86/mm/pti.c                            |  8 ++++----
 arch/x86/power/hibernate.c                   |  6 +++---
 arch/x86/xen/mmu_pv.c                        | 10 +++++-----
 drivers/misc/sgi-gru/grufault.c              |  2 +-
 32 files changed, 101 insertions(+), 122 deletions(-)

-- 
2.43.0