From: Alex Shi <al...@kernel.org>

A step to replace pgtable_t to struct ptdesc.

Signed-off-by: Alex Shi <al...@kernel.org>
Cc: linux...@kvack.org
Cc: nvd...@lists.linux.dev
Cc: linux-fsde...@vger.kernel.org
Cc: sparcli...@vger.kernel.org
Cc: linux-s...@vger.kernel.org
Cc: linux-ker...@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Barry Song <bao...@kernel.org>
Cc: Lance Yang <iowork...@gmail.com>
Cc: Hugh Dickins <hu...@google.com>
Cc: Kinsey Ho <kinse...@google.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Aneesh Kumar K.V  <aneesh.ku...@kernel.org>
Cc: Christian Brauner <brau...@kernel.org>
Cc: Alexander Viro <v...@zeniv.linux.org.uk>
Cc: Jan Kara <j...@suse.cz>
Cc: Dan Williams <dan.j.willi...@intel.com>
Cc: Andreas Larsson <andr...@gaisler.com>
Cc: David S. Miller <da...@davemloft.net>
Cc: Sven Schnelle <sv...@linux.ibm.com>
Cc: Christian Borntraeger <borntrae...@linux.ibm.com>
Cc: Vasily Gorbik <g...@linux.ibm.com>
Cc: Heiko Carstens <h...@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schae...@linux.ibm.com>
Cc: Alexander Gordeev <agord...@linux.ibm.com>
Cc: Naveen N. Rao <naveen.n....@linux.ibm.com>
Cc: Nicholas Piggin <npig...@gmail.com>
Cc: Ryan Roberts <ryan.robe...@arm.com>
Cc: David Hildenbrand <da...@redhat.com>
Cc: Jason Gunthorpe <j...@ziepe.ca>
Cc: Aneesh Kumar K.V <aneesh.ku...@linux.ibm.com>
Cc: Mike Rapoport  <r...@kernel.org>
Cc: Peter Xu <pet...@redhat.com>
Cc: Matthew Wilcox <wi...@infradead.org>
Cc: Christophe Leroy <christophe.le...@csgroup.eu>
Cc: Michael Ellerman <m...@ellerman.id.au>
---
 arch/powerpc/include/asm/book3s/64/pgtable.h |  6 +++---
 arch/powerpc/mm/book3s64/hash_pgtable.c      |  6 +++---
 arch/powerpc/mm/book3s64/radix_pgtable.c     |  6 +++---
 arch/s390/include/asm/pgtable.h              |  2 +-
 arch/s390/mm/pgtable.c                       |  6 +++---
 arch/sparc/include/asm/pgtable_64.h          |  2 +-
 arch/sparc/mm/tlb.c                          |  6 +++---
 fs/dax.c                                     |  2 +-
 include/linux/pgtable.h                      |  2 +-
 mm/debug_vm_pgtable.c                        |  2 +-
 mm/huge_memory.c                             | 14 +++++++-------
 mm/khugepaged.c                              |  2 +-
 mm/memory.c                                  |  2 +-
 mm/pgtable-generic.c                         |  8 ++++----
 14 files changed, 33 insertions(+), 33 deletions(-)

diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h 
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 0ee440b819d7..cf44e2440825 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -1365,11 +1365,11 @@ pud_t pudp_huge_get_and_clear_full(struct 
vm_area_struct *vma,
 
 #define __HAVE_ARCH_PGTABLE_DEPOSIT
 static inline void pgtable_trans_huge_deposit(struct mm_struct *mm,
-                                             pmd_t *pmdp, pgtable_t pgtable)
+                                             pmd_t *pmdp, struct ptdesc 
*ptdesc)
 {
        if (radix_enabled())
-               return radix__pgtable_trans_huge_deposit(mm, pmdp, pgtable);
-       return hash__pgtable_trans_huge_deposit(mm, pmdp, pgtable);
+               return radix__pgtable_trans_huge_deposit(mm, pmdp, ptdesc);
+       return hash__pgtable_trans_huge_deposit(mm, pmdp, ptdesc);
 }
 
 #define __HAVE_ARCH_PGTABLE_WITHDRAW
diff --git a/arch/powerpc/mm/book3s64/hash_pgtable.c 
b/arch/powerpc/mm/book3s64/hash_pgtable.c
index 35562d1f4267..8fd2c833dc3d 100644
--- a/arch/powerpc/mm/book3s64/hash_pgtable.c
+++ b/arch/powerpc/mm/book3s64/hash_pgtable.c
@@ -265,16 +265,16 @@ pmd_t hash__pmdp_collapse_flush(struct vm_area_struct 
*vma, unsigned long addres
  * the base page size hptes
  */
 void hash__pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
-                                 pgtable_t pgtable)
+                                     struct ptdesc *ptdesc)
 {
-       pgtable_t *pgtable_slot;
+       pte_t **pgtable_slot;
 
        assert_spin_locked(pmd_lockptr(mm, pmdp));
        /*
         * we store the pgtable in the second half of PMD
         */
        pgtable_slot = (pgtable_t *)pmdp + PTRS_PER_PMD;
-       *pgtable_slot = pgtable;
+       *pgtable_slot = (pte_t)ptdesc;
        /*
         * expose the deposited pgtable to other cpus.
         * before we set the hugepage PTE at pmd level
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c 
b/arch/powerpc/mm/book3s64/radix_pgtable.c
index 3b9bb19510e3..c33e860966ad 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -1478,9 +1478,9 @@ pmd_t radix__pmdp_collapse_flush(struct vm_area_struct 
*vma, unsigned long addre
  * list_head memory area.
  */
 void radix__pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
-                                pgtable_t pgtable)
+                                      struct ptdesc *ptdesc)
 {
-       struct list_head *lh = (struct list_head *) pgtable;
+       struct list_head *lh = (struct list_head *)ptdesc;
 
        assert_spin_locked(pmd_lockptr(mm, pmdp));
 
@@ -1489,7 +1489,7 @@ void radix__pgtable_trans_huge_deposit(struct mm_struct 
*mm, pmd_t *pmdp,
                INIT_LIST_HEAD(lh);
        else
                list_add(lh, (struct list_head *) pmd_huge_pte(mm, pmdp));
-       pmd_huge_pte(mm, pmdp) = pgtable;
+       pmd_huge_pte(mm, pmdp) = ptdesc_page(ptdesc);
 }
 
 struct ptdesc *radix__pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t 
*pmdp)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index cf0baf4bfe5c..d7b635f5e1e7 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1735,7 +1735,7 @@ pud_t pudp_xchg_direct(struct mm_struct *, unsigned long, 
pud_t *, pud_t);
 
 #define __HAVE_ARCH_PGTABLE_DEPOSIT
 void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
-                               pgtable_t pgtable);
+                               struct ptdesc *ptdesc);
 
 #define __HAVE_ARCH_PGTABLE_WITHDRAW
 struct ptdesc *pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index b9016ee145cb..cf1a6aeb66d4 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -563,9 +563,9 @@ EXPORT_SYMBOL(pudp_xchg_direct);
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
-                               pgtable_t pgtable)
+                               struct ptdesc *ptdesc)
 {
-       struct list_head *lh = (struct list_head *) pgtable;
+       struct list_head *lh = (struct list_head *)ptdesc;
 
        assert_spin_locked(pmd_lockptr(mm, pmdp));
 
@@ -574,7 +574,7 @@ void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t 
*pmdp,
                INIT_LIST_HEAD(lh);
        else
                list_add(lh, (struct list_head *) pmd_huge_pte(mm, pmdp));
-       pmd_huge_pte(mm, pmdp) = (struct ptdesc *)pgtable;
+       pmd_huge_pte(mm, pmdp) = ptdesc;
 }
 
 struct ptdesc *pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
diff --git a/arch/sparc/include/asm/pgtable_64.h 
b/arch/sparc/include/asm/pgtable_64.h
index bfefd678e220..c71be5ef8b06 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -995,7 +995,7 @@ extern pmd_t pmdp_invalidate(struct vm_area_struct *vma, 
unsigned long address,
 
 #define __HAVE_ARCH_PGTABLE_DEPOSIT
 void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
-                               pgtable_t pgtable);
+                               struct ptdesc *ptdesc);
 
 #define __HAVE_ARCH_PGTABLE_WITHDRAW
 struct ptdesc *pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index bd2d3b1f6ba3..eeed4427f524 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -267,9 +267,9 @@ pmd_t pmdp_invalidate(struct vm_area_struct *vma, unsigned 
long address,
 }
 
 void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
-                               pgtable_t pgtable)
+                               struct ptdesc *ptdesc)
 {
-       struct list_head *lh = (struct list_head *) pgtable;
+       struct list_head *lh = (struct list_head *)ptdesc;
 
        assert_spin_locked(&mm->page_table_lock);
 
@@ -278,7 +278,7 @@ void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t 
*pmdp,
                INIT_LIST_HEAD(lh);
        else
                list_add(lh, (struct list_head *) pmd_huge_pte(mm, pmdp));
-       pmd_huge_pte(mm, pmdp) = (struct ptdesc *)pgtable;
+       pmd_huge_pte(mm, pmdp) = ptdesc;
 }
 
 struct ptdesc *pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
diff --git a/fs/dax.c b/fs/dax.c
index 61b9bd5200da..4b4e6acb0efc 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1234,7 +1234,7 @@ static vm_fault_t dax_pmd_load_hole(struct xa_state *xas, 
struct vm_fault *vmf,
        }
 
        if (ptdesc) {
-               pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, 
ptdesc_page(ptdesc));
+               pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, ptdesc);
                mm_inc_nr_ptes(vma->vm_mm);
        }
        pmd_entry = mk_pmd(&zero_folio->page, vmf->vma->vm_page_prot);
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 3fa7b93580a3..9d256c548f5e 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -925,7 +925,7 @@ static inline pmd_t pmdp_collapse_flush(struct 
vm_area_struct *vma,
 
 #ifndef __HAVE_ARCH_PGTABLE_DEPOSIT
 extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
-                                      pgtable_t pgtable);
+                                      struct ptdesc *ptdesc);
 #endif
 
 #ifndef __HAVE_ARCH_PGTABLE_WITHDRAW
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index f256bc816744..8550eec32aba 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -225,7 +225,7 @@ static void __init pmd_advanced_tests(struct 
pgtable_debug_args *args)
        /* Align the address wrt HPAGE_PMD_SIZE */
        vaddr &= HPAGE_PMD_MASK;
 
-       pgtable_trans_huge_deposit(args->mm, args->pmdp, args->start_ptep);
+       pgtable_trans_huge_deposit(args->mm, args->pmdp, 
page_ptdesc(args->start_ptep));
 
        pmd = pfn_pmd(args->pmd_pfn, args->page_prot);
        set_pmd_at(args->mm, vaddr, args->pmdp, pmd);
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 4dc36910c8aa..aac67e8a8cc8 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -997,7 +997,7 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct 
vm_fault *vmf,
                entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma);
                folio_add_new_anon_rmap(folio, vma, haddr, RMAP_EXCLUSIVE);
                folio_add_lru_vma(folio, vma);
-               pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, 
ptdesc_page(ptdesc));
+               pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, ptdesc);
                set_pmd_at(vma->vm_mm, haddr, vmf->pmd, entry);
                update_mmu_cache_pmd(vma, vmf->address, vmf->pmd);
                add_mm_counter(vma->vm_mm, MM_ANONPAGES, HPAGE_PMD_NR);
@@ -1064,7 +1064,7 @@ static void set_huge_zero_folio(struct ptdesc *ptdesc, 
struct mm_struct *mm,
                return;
        entry = mk_pmd(&zero_folio->page, vma->vm_page_prot);
        entry = pmd_mkhuge(entry);
-       pgtable_trans_huge_deposit(mm, pmd, ptdesc_page(ptdesc));
+       pgtable_trans_huge_deposit(mm, pmd, ptdesc);
        set_pmd_at(mm, haddr, pmd, entry);
        mm_inc_nr_ptes(mm);
 }
@@ -1167,7 +1167,7 @@ static void insert_pfn_pmd(struct vm_area_struct *vma, 
unsigned long addr,
        }
 
        if (ptdesc) {
-               pgtable_trans_huge_deposit(mm, pmd, ptdesc_page(ptdesc));
+               pgtable_trans_huge_deposit(mm, pmd, ptdesc);
                mm_inc_nr_ptes(mm);
                ptdesc = NULL;
        }
@@ -1404,7 +1404,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct 
mm_struct *src_mm,
                }
                add_mm_counter(dst_mm, MM_ANONPAGES, HPAGE_PMD_NR);
                mm_inc_nr_ptes(dst_mm);
-               pgtable_trans_huge_deposit(dst_mm, dst_pmd, 
ptdesc_page(ptdesc));
+               pgtable_trans_huge_deposit(dst_mm, dst_pmd, ptdesc);
                if (!userfaultfd_wp(dst_vma))
                        pmd = pmd_swp_clear_uffd_wp(pmd);
                set_pmd_at(dst_mm, addr, dst_pmd, pmd);
@@ -1449,7 +1449,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct 
mm_struct *src_mm,
        add_mm_counter(dst_mm, MM_ANONPAGES, HPAGE_PMD_NR);
 out_zero_page:
        mm_inc_nr_ptes(dst_mm);
-       pgtable_trans_huge_deposit(dst_mm, dst_pmd, ptdesc_page(ptdesc));
+       pgtable_trans_huge_deposit(dst_mm, dst_pmd, ptdesc);
        pmdp_set_wrprotect(src_mm, addr, src_pmd);
        if (!userfaultfd_wp(dst_vma))
                pmd = pmd_clear_uffd_wp(pmd);
@@ -1962,7 +1962,7 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned 
long old_addr,
                        struct ptdesc *ptdesc;
 
                        ptdesc = pgtable_trans_huge_withdraw(mm, old_pmd);
-                       pgtable_trans_huge_deposit(mm, new_pmd, 
ptdesc_page(ptdesc));
+                       pgtable_trans_huge_deposit(mm, new_pmd, ptdesc);
                }
                pmd = move_soft_dirty_pmd(pmd);
                set_pmd_at(mm, new_addr, new_pmd, pmd);
@@ -2236,7 +2236,7 @@ int move_pages_huge_pmd(struct mm_struct *mm, pmd_t 
*dst_pmd, pmd_t *src_pmd, pm
        set_pmd_at(mm, dst_addr, dst_pmd, _dst_pmd);
 
        src_ptdesc = pgtable_trans_huge_withdraw(mm, src_pmd);
-       pgtable_trans_huge_deposit(mm, dst_pmd, ptdesc_page(src_ptdesc));
+       pgtable_trans_huge_deposit(mm, dst_pmd, src_ptdesc);
 unlock_ptls:
        double_pt_unlock(src_ptl, dst_ptl);
        if (src_anon_vma) {
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index f3b3db104615..48a54269472e 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1232,7 +1232,7 @@ static int collapse_huge_page(struct mm_struct *mm, 
unsigned long address,
        BUG_ON(!pmd_none(*pmd));
        folio_add_new_anon_rmap(folio, vma, address, RMAP_EXCLUSIVE);
        folio_add_lru_vma(folio, vma);
-       pgtable_trans_huge_deposit(mm, pmd, pgtable);
+       pgtable_trans_huge_deposit(mm, pmd, page_ptdesc(pgtable));
        set_pmd_at(mm, address, pmd, _pmd);
        update_mmu_cache_pmd(vma, address, pmd);
        spin_unlock(pmd_ptl);
diff --git a/mm/memory.c b/mm/memory.c
index 27c2f63b7487..956cfe5f644d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4687,7 +4687,7 @@ static void deposit_prealloc_pte(struct vm_fault *vmf)
 {
        struct vm_area_struct *vma = vmf->vma;
 
-       pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, vmf->prealloc_pte);
+       pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, 
page_ptdesc(vmf->prealloc_pte));
        /*
         * We are going to consume the prealloc table,
         * count that as nr_ptes.
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index de1ed30fea16..5e763682941d 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -163,16 +163,16 @@ pud_t pudp_huge_clear_flush(struct vm_area_struct *vma, 
unsigned long address,
 
 #ifndef __HAVE_ARCH_PGTABLE_DEPOSIT
 void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
-                               pgtable_t pgtable)
+                               struct ptdesc *ptdesc)
 {
        assert_spin_locked(pmd_lockptr(mm, pmdp));
 
        /* FIFO */
        if (!pmd_huge_pte(mm, pmdp))
-               INIT_LIST_HEAD(&pgtable->lru);
+               INIT_LIST_HEAD(&ptdesc->pt_list);
        else
-               list_add(&pgtable->lru, &pmd_huge_pte(mm, pmdp)->pt_list);
-       pmd_huge_pte(mm, pmdp) = page_ptdesc(pgtable);
+               list_add(&ptdesc->pt_list, &pmd_huge_pte(mm, pmdp)->pt_list);
+       pmd_huge_pte(mm, pmdp) = ptdesc;
 }
 #endif
 
-- 
2.43.0

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