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mm: create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor}

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Create pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(),
and pagetable_pmd_dtor() and make the original pgtable
constructor/destructors wrappers.

Link: https://lkml.kernel.org/r/20230807230513.102486-12-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Guo Ren <guoren@kernel.org>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Palmer Dabbelt <palmer@rivosinc.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Vishal Moola (Oracle) 2023-08-07 16:04:53 -07:00 committed by Andrew Morton
parent 6ed1b8a09d
commit 7e11dca14b
1 changed files with 44 additions and 16 deletions
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60
include/linux/mm.h
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@ -2887,20 +2887,34 @@ static inline bool ptlock_init(struct ptdesc *ptdesc) { return true; }
static inline void ptlock_free(struct ptdesc *ptdesc) {}
#endif /* USE_SPLIT_PTE_PTLOCKS */
static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc)
{
struct folio *folio = ptdesc_folio(ptdesc);
if (!ptlock_init(ptdesc))
return false;
__folio_set_pgtable(folio);
lruvec_stat_add_folio(folio, NR_PAGETABLE);
return true;
}
static inline bool pgtable_pte_page_ctor(struct page *page)
{
if (!ptlock_init(page_ptdesc(page)))
return false;
__SetPageTable(page);
inc_lruvec_page_state(page, NR_PAGETABLE);
return true;
return pagetable_pte_ctor(page_ptdesc(page));
}
static inline void pagetable_pte_dtor(struct ptdesc *ptdesc)
{
struct folio *folio = ptdesc_folio(ptdesc);
ptlock_free(ptdesc);
__folio_clear_pgtable(folio);
lruvec_stat_sub_folio(folio, NR_PAGETABLE);
}
static inline void pgtable_pte_page_dtor(struct page *page)
{
ptlock_free(page_ptdesc(page));
__ClearPageTable(page);
dec_lruvec_page_state(page, NR_PAGETABLE);
pagetable_pte_dtor(page_ptdesc(page));
}
pte_t *__pte_offset_map(pmd_t *pmd, unsigned long addr, pmd_t *pmdvalp);
@ -2998,20 +3012,34 @@ static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd)
return ptl;
}
static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc)
{
struct folio *folio = ptdesc_folio(ptdesc);
if (!pmd_ptlock_init(ptdesc))
return false;
__folio_set_pgtable(folio);
lruvec_stat_add_folio(folio, NR_PAGETABLE);
return true;
}
static inline bool pgtable_pmd_page_ctor(struct page *page)
{
if (!pmd_ptlock_init(page_ptdesc(page)))
return false;
__SetPageTable(page);
inc_lruvec_page_state(page, NR_PAGETABLE);
return true;
return pagetable_pmd_ctor(page_ptdesc(page));
}
static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc)
{
struct folio *folio = ptdesc_folio(ptdesc);
pmd_ptlock_free(ptdesc);
__folio_clear_pgtable(folio);
lruvec_stat_sub_folio(folio, NR_PAGETABLE);
}
static inline void pgtable_pmd_page_dtor(struct page *page)
{
pmd_ptlock_free(page_ptdesc(page));
__ClearPageTable(page);
dec_lruvec_page_state(page, NR_PAGETABLE);
pagetable_pmd_dtor(page_ptdesc(page));
}
/*