[merged mm-stable] lib-add-codetag-reference-into-slabobj_ext.patch removed from -mm tree

[merged mm-stable] lib-add-codetag-reference-into-slabobj_ext.patch removed from -mm tree

[Andrew Morton]

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The quilt patch titled
     Subject: lib: add codetag reference into slabobj_ext
has been removed from the -mm tree.  Its filename was
     lib-add-codetag-reference-into-slabobj_ext.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: Suren Baghdasaryan <surenb@google.com>
Subject: lib: add codetag reference into slabobj_ext
Date: Thu, 21 Mar 2024 09:36:44 -0700

To store code tag for every slab object, a codetag reference is embedded
into slabobj_ext when CONFIG_MEM_ALLOC_PROFILING=y.

Link: https://lkml.kernel.org/r/20240321163705.3067592-23-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Co-developed-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Tested-by: Kees Cook <keescook@chromium.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andreas Hindborg <a.hindborg@samsung.com>
Cc: Benno Lossin <benno.lossin@proton.me>
Cc: "Björn Roy Baron" <bjorn3_gh@protonmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Gary Guo <gary@garyguo.net>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/memcontrol.h |    5 +++++
 lib/Kconfig.debug          |    1 +
 2 files changed, 6 insertions(+)

--- a/include/linux/memcontrol.h~lib-add-codetag-reference-into-slabobj_ext
+++ a/include/linux/memcontrol.h
@@ -1653,7 +1653,12 @@ unsigned long mem_cgroup_soft_limit_recl
  * if MEMCG_DATA_OBJEXTS is set.
  */
 struct slabobj_ext {
+#ifdef CONFIG_MEMCG_KMEM
 	struct obj_cgroup *objcg;
+#endif
+#ifdef CONFIG_MEM_ALLOC_PROFILING
+	union codetag_ref ref;
+#endif
 } __aligned(8);
 
 static inline void __inc_lruvec_kmem_state(void *p, enum node_stat_item idx)
--- a/lib/Kconfig.debug~lib-add-codetag-reference-into-slabobj_ext
+++ a/lib/Kconfig.debug
@@ -979,6 +979,7 @@ config MEM_ALLOC_PROFILING
 	depends on !DEBUG_FORCE_WEAK_PER_CPU
 	select CODE_TAGGING
 	select PAGE_EXTENSION
+	select SLAB_OBJ_EXT
 	help
 	  Track allocation source code and record total allocation size
 	  initiated at that code location. The mechanism can be used to track
_

Patches currently in -mm which might be from surenb@google.com are

userfaultfd-remove-write_once-when-setting-folio-index-during-uffdio_move.patch