* [to-be-updated] mm-khugepaged-use-vma_start_write_killable-in-collapse_huge_page.patch removed from -mm tree
@ 2026-03-27 23:04 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2026-03-27 23:04 UTC (permalink / raw)
To: mm-commits, surenb, akpm
The quilt patch titled
Subject: mm/khugepaged: use vma_start_write_killable() in collapse_huge_page()
has been removed from the -mm tree. Its filename was
mm-khugepaged-use-vma_start_write_killable-in-collapse_huge_page.patch
This patch was dropped because an updated version will be issued
------------------------------------------------------
From: Suren Baghdasaryan <surenb@google.com>
Subject: mm/khugepaged: use vma_start_write_killable() in collapse_huge_page()
Date: Thu, 26 Mar 2026 01:08:33 -0700
Replace vma_start_write() with vma_start_write_killable(), improving
reaction time to the kill signal. Replace vma_start_write() in
collapse_huge_page().
Link: https://lkml.kernel.org/r/20260326080836.695207-4-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Byungchul Park <byungchul@sk.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Gregory Price <gourry@gourry.net>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Jann Horn <jannh@google.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/khugepaged.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/mm/khugepaged.c~mm-khugepaged-use-vma_start_write_killable-in-collapse_huge_page
+++ a/mm/khugepaged.c
@@ -1166,7 +1166,10 @@ static enum scan_result collapse_huge_pa
if (result != SCAN_SUCCEED)
goto out_up_write;
/* check if the pmd is still valid */
- vma_start_write(vma);
+ if (vma_start_write_killable(vma)) {
+ result = SCAN_FAIL;
+ goto out_up_write;
+ }
result = check_pmd_still_valid(mm, address, pmd);
if (result != SCAN_SUCCEED)
goto out_up_write;
_
Patches currently in -mm which might be from surenb@google.com are
a.patch
mm-vma-use-vma_start_write_killable-in-vma-operations.patch
mm-use-vma_start_write_killable-in-process_vma_walk_lock.patch
kvm-ppc-use-vma_start_write_killable-in-kvmppc_memslot_page_merge.patch
mm-vmscan-prevent-mglru-reclaim-from-pinning-address-space.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
* [to-be-updated] mm-khugepaged-use-vma_start_write_killable-in-collapse_huge_page.patch removed from -mm tree
@ 2026-03-31 18:29 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2026-03-31 18:29 UTC (permalink / raw)
To: mm-commits, surenb, akpm
The quilt patch titled
Subject: mm/khugepaged: use vma_start_write_killable() in collapse_huge_page()
has been removed from the -mm tree. Its filename was
mm-khugepaged-use-vma_start_write_killable-in-collapse_huge_page.patch
This patch was dropped because an updated version will be issued
------------------------------------------------------
From: Suren Baghdasaryan <surenb@google.com>
Subject: mm/khugepaged: use vma_start_write_killable() in collapse_huge_page()
Date: Fri, 27 Mar 2026 13:54:54 -0700
Replace vma_start_write() with vma_start_write_killable(), improving
reaction time to the kill signal. Replace vma_start_write() in
collapse_huge_page().
Link: https://lkml.kernel.org/r/20260327205457.604224-4-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Byungchul Park <byungchul@sk.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Gregory Price <gourry@gourry.net>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Jann Horn <jannh@google.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/khugepaged.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/mm/khugepaged.c~mm-khugepaged-use-vma_start_write_killable-in-collapse_huge_page
+++ a/mm/khugepaged.c
@@ -1159,7 +1159,10 @@ static enum scan_result collapse_huge_pa
if (result != SCAN_SUCCEED)
goto out_up_write;
/* check if the pmd is still valid */
- vma_start_write(vma);
+ if (vma_start_write_killable(vma)) {
+ result = SCAN_FAIL;
+ goto out_up_write;
+ }
result = check_pmd_still_valid(mm, address, pmd);
if (result != SCAN_SUCCEED)
goto out_up_write;
_
Patches currently in -mm which might be from surenb@google.com are
mm-vma-use-vma_start_write_killable-in-vma-operations.patch
mm-use-vma_start_write_killable-in-process_vma_walk_lock.patch
kvm-ppc-use-vma_start_write_killable-in-kvmppc_memslot_page_merge.patch
mm-vmscan-prevent-mglru-reclaim-from-pinning-address-space.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
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2026-03-27 23:04 [to-be-updated] mm-khugepaged-use-vma_start_write_killable-in-collapse_huge_page.patch removed from -mm tree Andrew Morton
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