The patch titled
Subject: mm-hugetlb-simplify-refs-in-memfd_alloc_folio-v2
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
mm-hugetlb-simplify-refs-in-memfd_alloc_folio-v2.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-hugetlb-simplify-refs-in-memfd_alloc_folio-v2.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Steve Sistare <steven.sistare@xxxxxxxxxx>
Subject: mm-hugetlb-simplify-refs-in-memfd_alloc_folio-v2
Date: Wed, 4 Sep 2024 13:32:00 -0700
remove explicit call to free_huge_folio(), per Matthew
Link: https://lkml.kernel.org/r/Zti-7nPVMcGgpcbi@xxxxxxxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/1725481920-82506-1-git-send-email-steven.sistare@xxxxxxxxxx
Fixes: 89c1905d9c14 ("mm/gup: introduce memfd_pin_folios() for pinning memfd folios")
Signed-off-by: Steve Sistare <steven.sistare@xxxxxxxxxx>
Suggested-by: Vivek Kasireddy <vivek.kasireddy@xxxxxxxxx>
Suggested-by: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Jason Gunthorpe <jgg@xxxxxxxxxx>
Cc: Muchun Song <muchun.song@xxxxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memfd.c | 1 -
1 file changed, 1 deletion(-)
--- a/mm/memfd.c~mm-hugetlb-simplify-refs-in-memfd_alloc_folio-v2
+++ a/mm/memfd.c
@@ -95,7 +95,6 @@ struct folio *memfd_alloc_folio(struct f
idx);
if (err) {
folio_put(folio);
- free_huge_folio(folio);
return ERR_PTR(err);
}
folio_unlock(folio);
_
Patches currently in -mm which might be from steven.sistare@xxxxxxxxxx are
mm-filemap-fix-filemap_get_folios_contig-thp-panic.patch
mm-hugetlb-fix-memfd_pin_folios-free_huge_pages-leak.patch
mm-hugetlb-fix-memfd_pin_folios-resv_huge_pages-leak.patch
mm-gup-fix-memfd_pin_folios-hugetlb-page-allocation.patch
mm-gup-fix-memfd_pin_folios-alloc-race-panic.patch
mm-hugetlb-simplify-refs-in-memfd_alloc_folio.patch
mm-hugetlb-simplify-refs-in-memfd_alloc_folio-v2.patch
