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FAILED: patch "[PATCH] tools/mm/slabinfo: fix total_objects attribute name" failed to apply to 5.15-stable tree

PATCH Applied [email protected] 3 participants 3 messages Jul 14 – Jul 17

Subsystems (3)
Stable branch Memory management Slab allocator
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author maintainer
#0 lore raw

The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 892a7864730775c3dbee2a39e9ead4fa8d4256e7
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2026071426-segment-spirits-4788@gregkh' --subject-prefix 'PATCH 5.15.y' 'HEAD^..'

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 892a7864730775c3dbee2a39e9ead4fa8d4256e7 Mon Sep 17 00:00:00 2001
From: Yichong Chen <[email protected]>
Date: Fri, 12 Jun 2026 15:13:59 +0800
Subject: [PATCH] tools/mm/slabinfo: fix total_objects attribute name

SLUB exports the total_objects sysfs attribute, but slabinfo tries to read objects_total. As a result, the lookup fails and the field remains zero.

Use the correct attribute name and rename the corresponding structure member to match.

Fixes 205ab99dd103 ("slub: Update statistics handling for variable order slabs")
Signed-off-by Yichong Chen <[email protected]>
Cc <[email protected]>
Reviewed-by SeongJae Park <[email protected]>
Link https://patch.msgid.link/96556748872BB47E+20260612071359.649946-1-chenyichong@uniontech.com open here
Signed-off-by Vlastimil Babka (SUSE) <[email protected]>
tools/mm/slabinfo.c +2 -2
index 87570c22b151..48d1ee8b0e81 100644
@@ -33,7 +33,7 @@ struct slabinfo {
 	unsigned int hwcache_align, object_size, objs_per_slab;
 	unsigned int sanity_checks, slab_size, store_user, trace;
 	int order, poison, reclaim_account, red_zone;
-	unsigned long partial, objects, slabs, objects_partial, objects_total;
+	unsigned long partial, objects, slabs, objects_partial, total_objects;
 	unsigned long alloc_fastpath, alloc_slowpath;
 	unsigned long free_fastpath, free_slowpath;
 	unsigned long free_frozen, free_add_partial, free_remove_partial;

@@ -1262,7 +1262,7 @@ static void read_slab_dir(void)
 			slab->object_size = get_obj("object_size");
 			slab->objects = get_obj("objects");
 			slab->objects_partial = get_obj("objects_partial");
-			slab->objects_total = get_obj("objects_total");
+			slab->total_objects = get_obj("total_objects");
 			slab->objs_per_slab = get_obj("objs_per_slab");
 			slab->order = get_obj("order");
 			slab->partial = get_obj_and_str("partial", &t);
#1 lore raw

PATCH 1/1 tools/mm/slabinfo: fix total_objects attribute name

SLUB exports the total_objects sysfs attribute, but slabinfo tries to read objects_total. As a result, the lookup fails and the field remains zero.

Use the correct attribute name and rename the corresponding structure member to match.

Fixes 205ab99dd103 ("slub: Update statistics handling for variable order slabs")
Signed-off-by Yichong Chen <[email protected]>
Cc <[email protected]>
Reviewed-by SeongJae Park <[email protected]>
Link https://patch.msgid.link/96556748872BB47E+20260612071359.649946-1-chenyichong@uniontech.com open here
Signed-off-by Vlastimil Babka (SUSE) <[email protected]>
(cherry picked from commit 892a7864730775c3dbee2a39e9ead4fa8d4256e7)
---
 tools/vm/slabinfo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
tools/vm/slabinfo.c +2 -2
index 0fffaeedee76..d26a44e3e684 100644
@@ -33,7 +33,7 @@ struct slabinfo {
 	unsigned int hwcache_align, object_size, objs_per_slab;
 	unsigned int sanity_checks, slab_size, store_user, trace;
 	int order, poison, reclaim_account, red_zone;
-	unsigned long partial, objects, slabs, objects_partial, objects_total;
+	unsigned long partial, objects, slabs, objects_partial, total_objects;
 	unsigned long alloc_fastpath, alloc_slowpath;
 	unsigned long free_fastpath, free_slowpath;
 	unsigned long free_frozen, free_add_partial, free_remove_partial;

@@ -1254,7 +1254,7 @@ static void read_slab_dir(void)
 			slab->object_size = get_obj("object_size");
 			slab->objects = get_obj("objects");
 			slab->objects_partial = get_obj("objects_partial");
-			slab->objects_total = get_obj("objects_total");
+			slab->total_objects = get_obj("total_objects");
 			slab->objs_per_slab = get_obj("objs_per_slab");
 			slab->order = get_obj("order");
 			slab->partial = get_obj("partial");
Signature · 1 line
2.20.1
maintainer Applied
#2 lore raw

Re: [PATCH 5.15.y] tools/mm/slabinfo: fix total_objects attribute name

Quoted 2 lines · Yichong Chen

SLUB exports the total_objects sysfs attribute, but slabinfo tries to read objects_total. As a result, the lookup fails and the field remains zero.

Queued for 5.15, thanks.

Signature · 2 lines
Thanks,
Sasha