[merged mm-stable] xarray-honor-xa_flags_account-in-xas_split_alloc.patch removed from -mm tree
Andrew Morton <[email protected]>
| Newsgroups | org.kernel.vger.stable,org.kernel.vger.mm-commits |
|---|---|
| Message-ID | <[email protected]> |
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 <[email protected]>
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 <[email protected]>
Reviewed-by: Lorenzo Stoakes (ARM) <[email protected]>
Acked-by: Johannes Weiner <[email protected]>
Cc: Baolin Wang <[email protected]>
Cc: Barry Song <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Dev Jain <[email protected]>
Cc: Lance Yang <[email protected]>
Cc: Liam R. Howlett <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Ryan Roberts <[email protected]>
Cc: William Kucharski <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
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 [email protected] are
usb-gadgetfs-do-not-warn-about-excessively-large-memory-allocations.patch