* [merged mm-stable] xarray-honor-xa_flags_account-in-xas_split_alloc.patch removed from -mm tree
@ 2026-08-25 1:53 Andrew Morton
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From: Andrew Morton @ 2026-08-25 1:53 UTC (permalink / raw)
To: mm-commits, willy, william.kucharski, stable, ryan.roberts, ljs,
liam, lance.yang, hannes, dev.jain, david, baolin.wang, baohua,
ziy, akpm
The quilt patch titled
Subject: xarray: honor XA_FLAGS_ACCOUNT in xas_split_alloc()
has been removed from the -mm tree. Its filename was
xarray-honor-xa_flags_account-in-xas_split_alloc.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: Zi Yan <ziy@nvidia.com>
Subject: xarray: honor XA_FLAGS_ACCOUNT in xas_split_alloc()
Date: Tue, 04 Aug 2026 17:04:28 -0400
XArray operations that allocate xa_nodes, such as xas_nomem() and
xas_alloc(), add __GFP_ACCOUNT when the array has XA_FLAGS_ACCOUNT set.
This charges the allocated memory and avoids the workingset convergence
issue described by commit 7b785645e8f13 ("mm: fix page cache convergence
regression").
xas_split_alloc() does not add _GFP_ACCOUNT when XA_FLAGS_ACCOUNT is
present. Fix it.
Link: https://lore.kernel.org/20260804-add-gfp_account-to-xas_split_alloc-v3-2-38cb3ff325c5@nvidia.com
Fixes: 6b24ca4a1a8d ("mm: Use multi-index entries in the page cache")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
lib/xarray.c | 3 +++
1 file changed, 3 insertions(+)
--- a/lib/xarray.c~xarray-honor-xa_flags_account-in-xas_split_alloc
+++ a/lib/xarray.c
@@ -1053,6 +1053,9 @@ void xas_split_alloc(struct xa_state *xa
if (xas->xa_shift + XA_CHUNK_SHIFT > order)
return;
+ if (xas->xa->xa_flags & XA_FLAGS_ACCOUNT)
+ gfp |= __GFP_ACCOUNT;
+
do {
struct xa_node *node;
_
Patches currently in -mm which might be from ziy@nvidia.com are
usb-gadgetfs-do-not-warn-about-excessively-large-memory-allocations.patch
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2026-08-25 1:53 [merged mm-stable] xarray-honor-xa_flags_account-in-xas_split_alloc.patch removed from -mm tree Andrew Morton
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