Subject: FAILED: patch "[PATCH] tools/mm/slabinfo: fix total_objects attribute name" failed to apply to 5.15-stable tree
To: chenyichong@uniontech.com,sj@kernel.org,stable@vger.kernel.org,vbabka@kernel.org
Cc: <stable@vger.kernel.org>
From: <gregkh@linuxfoundation.org>
Date: Tue, 14 Jul 2026 16:52:26 +0200
Message-ID: <2026071426-segment-spirits-4788@gregkh>
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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 <stable@vger.kernel.org>.

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 '<stable@vger.kernel.org>' --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 <chenyichong@uniontech.com>
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 <chenyichong@uniontech.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Link: https://patch.msgid.link/96556748872BB47E+20260612071359.649946-1-chenyichong@uniontech.com
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>

diff --git a/tools/mm/slabinfo.c b/tools/mm/slabinfo.c
index 87570c22b151..48d1ee8b0e81 100644
--- a/tools/mm/slabinfo.c
+++ b/tools/mm/slabinfo.c
@@ -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);