From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,willy@infradead.org,songmuchun@bytedance.com,ryan.roberts@arm.com,peterx@redhat.com,muchun.song@linux.dev,hughd@google.com,fengwei.yin@intel.com,david@redhat.com,akpm@linux-foundation.org
Subject: [merged mm-stable] mm-huge_memory-page_try_dup_anon_rmap-folio_try_dup_anon_rmap_pmd.patch removed from -mm tree
Date: Fri, 29 Dec 2023 12:01:58 -0800 [thread overview]
Message-ID: <20231229200159.661C2C433C7@smtp.kernel.org> (raw)
The quilt patch titled
Subject: mm/huge_memory: page_try_dup_anon_rmap() -> folio_try_dup_anon_rmap_pmd()
has been removed from the -mm tree. Its filename was
mm-huge_memory-page_try_dup_anon_rmap-folio_try_dup_anon_rmap_pmd.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: David Hildenbrand <david@redhat.com>
Subject: mm/huge_memory: page_try_dup_anon_rmap() -> folio_try_dup_anon_rmap_pmd()
Date: Wed, 20 Dec 2023 23:44:59 +0100
Let's convert copy_huge_pmd() and fixup the comment in copy_huge_pud().
While at it, perform more folio conversion in copy_huge_pmd().
Link: https://lkml.kernel.org/r/20231220224504.646757-36-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/huge_memory.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
--- a/mm/huge_memory.c~mm-huge_memory-page_try_dup_anon_rmap-folio_try_dup_anon_rmap_pmd
+++ a/mm/huge_memory.c
@@ -1275,6 +1275,7 @@ int copy_huge_pmd(struct mm_struct *dst_
{
spinlock_t *dst_ptl, *src_ptl;
struct page *src_page;
+ struct folio *src_folio;
pmd_t pmd;
pgtable_t pgtable = NULL;
int ret = -ENOMEM;
@@ -1341,11 +1342,12 @@ int copy_huge_pmd(struct mm_struct *dst_
src_page = pmd_page(pmd);
VM_BUG_ON_PAGE(!PageHead(src_page), src_page);
+ src_folio = page_folio(src_page);
- get_page(src_page);
- if (unlikely(page_try_dup_anon_rmap(src_page, true, src_vma))) {
+ folio_get(src_folio);
+ if (unlikely(folio_try_dup_anon_rmap_pmd(src_folio, src_page, src_vma))) {
/* Page maybe pinned: split and retry the fault on PTEs. */
- put_page(src_page);
+ folio_put(src_folio);
pte_free(dst_mm, pgtable);
spin_unlock(src_ptl);
spin_unlock(dst_ptl);
@@ -1454,8 +1456,8 @@ int copy_huge_pud(struct mm_struct *dst_
}
/*
- * TODO: once we support anonymous pages, use page_try_dup_anon_rmap()
- * and split if duplicating fails.
+ * TODO: once we support anonymous pages, use
+ * folio_try_dup_anon_rmap_*() and split if duplicating fails.
*/
pudp_set_wrprotect(src_mm, addr, src_pud);
pud = pud_mkold(pud_wrprotect(pud));
_
Patches currently in -mm which might be from david@redhat.com are
reply other threads:[~2023-12-29 20:01 UTC|newest]
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