Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page

[PATCH v2 00/12] mm: free retracted page table by RCU · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 01/12] mm/pgtable: add rcu_read_lock() and rcu_read_unlock()s · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 02/12] mm/pgtable: add PAE safety to __pte_offset_map() · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 03/12] arm: adjust_pte() use pte_offset_map_nolock() · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 04/12] powerpc: assert_pte_locked() use pte_offset_map_nolock() · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 05/12] powerpc: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-06-20
Re: [PATCH v2 05/12] powerpc: add pte_free_defer() for pgtables sharing page · Jason Gunthorpe <jgg@ziepe.ca> · 2023-06-20
Re: [PATCH v2 05/12] powerpc: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-06-20
Re: [PATCH v2 05/12] powerpc: add pte_free_defer() for pgtables sharing page · Jason Gunthorpe <jgg@ziepe.ca> · 2023-06-20
Re: [PATCH v2 05/12] powerpc: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-06-22
Re: [PATCH v2 05/12] powerpc: add pte_free_defer() for pgtables sharing page · Jason Gunthorpe <jgg@ziepe.ca> · 2023-06-27
Re: [PATCH v2 05/12] powerpc: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-06-27
[PATCH v2 06/12] sparc: add pte_free_defer() for pte_t *pgtable_t · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-06-20
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Gerald Schaefer <gerald.schaefer@linux.ibm.com> · 2023-06-28
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-06-29
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Jason Gunthorpe <jgg@ziepe.ca> · 2023-06-29
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Gerald Schaefer <gerald.schaefer@linux.ibm.com> · 2023-06-29
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-06-30
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-07-02
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Alexander Gordeev <agordeev@linux.ibm.com> · 2023-07-04
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-07-04
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Gerald Schaefer <gerald.schaefer@linux.ibm.com> · 2023-07-04
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-07-04
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Gerald Schaefer <gerald.schaefer@linux.ibm.com> · 2023-07-05
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-07-06
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Gerald Schaefer <gerald.schaefer@linux.ibm.com> · 2023-07-06
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-07-06
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Jason Gunthorpe <jgg@ziepe.ca> · 2023-07-10
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Alexander Gordeev <agordeev@linux.ibm.com> · 2023-07-05
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-07-06
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Gerald Schaefer <gerald.schaefer@linux.ibm.com> · 2023-07-07
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Gerald Schaefer <gerald.schaefer@linux.ibm.com> · 2023-07-03
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Alexander Gordeev <agordeev@linux.ibm.com> · 2023-06-29
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Gerald Schaefer <gerald.schaefer@linux.ibm.com> · 2023-06-29
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Claudio Imbrenda <imbrenda@linux.ibm.com> · 2023-06-30
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-06-30
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Claudio Imbrenda <imbrenda@linux.ibm.com> · 2023-06-30
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Hugh Dickins <hughd@google.com> · 2023-06-30
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Claudio Imbrenda <imbrenda@linux.ibm.com> · 2023-07-03
Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page · Jason Gunthorpe <jgg@ziepe.ca> · 2023-07-03
[PATCH v2 08/12] mm/pgtable: add pte_free_defer() for pgtable as page · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 09/12] mm/khugepaged: retract_page_tables() without mmap or vma lock · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 10/12] mm/khugepaged: collapse_pte_mapped_thp() with mmap_read_lock() · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH mm 10/12] mm/khugepaged: collapse_pte_mapped_thp() with mmap_read_lock() · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 11/12] mm/khugepaged: delete khugepaged_collapse_pte_mapped_thps() · Hugh Dickins <hughd@google.com> · 2023-06-20
[PATCH v2 12/12] mm: delete mmap_write_trylock() and vma_try_start_write() · Hugh Dickins <hughd@google.com> · 2023-06-20

From: Alexander Gordeev <agordeev@linux.ibm.com>
Date: 2023-07-05 06:50:21
Also in: linux-mm, linux-s390, lkml, sparclinux

On Sat, Jul 01, 2023 at 09:32:38PM -0700, Hugh Dickins wrote:

On Thu, 29 Jun 2023, Hugh Dickins wrote:

Hi Hugh,

...

+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+void pte_free_defer(struct mm_struct *mm, pgtable_t pgtable)
+{
+	struct page *page;

If I got your and Claudio conversation right, you were going to add
here WARN_ON_ONCE() in case of mm_alloc_pgste(mm)?

+	page = virt_to_page(pgtable);
+	SetPageActive(page);
+	page_table_free(mm, (unsigned long *)pgtable);
+}
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+
 /*
  * Base infrastructure required to generate basic asces, region, segment,
  * and page tables that do not make use of enhanced features like EDAT1.

Thanks!

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