* [merged mm-stable] docs-core-api-memory-allocation-clarify-when-to-use-kzalloc_obj-and-kzalloc.patch removed from -mm tree
@ 2026-10-09 5:58 Andrew Morton
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From: Andrew Morton @ 2026-10-09 5:58 UTC (permalink / raw)
To: mm-commits, vbabka, surenb, sj, rdunlap, mhocko, ljs, liam, david,
corbet, rppt, akpm
The quilt patch titled
Subject: docs/core-api: memory-allocation: clarify when to use kzalloc_obj and kzalloc
has been removed from the -mm tree. Its filename was
docs-core-api-memory-allocation-clarify-when-to-use-kzalloc_obj-and-kzalloc.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: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
Subject: docs/core-api: memory-allocation: clarify when to use kzalloc_obj and kzalloc
Date: Mon, 7 Sep 2026 09:36:54 +0300
Make it abundantly clear that in the most cases objects should be
allocated with kzalloc_obj() and buffers should be allocated with
kzalloc().
Link: https://lore.kernel.org/20260907063654.2248617-1-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Acked-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
---
Documentation/core-api/memory-allocation.rst | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/Documentation/core-api/memory-allocation.rst~docs-core-api-memory-allocation-clarify-when-to-use-kzalloc_obj-and-kzalloc
+++ a/Documentation/core-api/memory-allocation.rst
@@ -23,12 +23,14 @@ answer, although very likely you should
kzalloc_obj(<VAR_OR_TYPE>);
-or
+if you need memory for an object and
::
kzalloc(<size>, GFP_KERNEL);
+if you need memory for a buffer.
+
Of course there are cases when other allocation APIs and different GFP
flags must be used.
_
Patches currently in -mm which might be from rppt@kernel.org are
docs-mm-describe-set_memory-and-set_direct_map-apis.patch
docs-mm-describe-set_memory-and-set_direct_map-apis-fix.patch
arch-mm-promote-debug_wx-to-check_wx.patch
sh-remove-config_numa-and-realted-configuration-options.patch
sh-mm-remove-numac.patch
sh-mm-drop-allocate_pgdat.patch
sh-remove-setup_bootmem_node-and-plat_mem_setup.patch
sh-drop-dead-code-guarded-by-ifdef-config_numa.patch
sh-drop-include-asm-mmzoneh.patch
init-kconfig-drop-arch_want_numa_variable_locality.patch
sh-init-remove-call-the-memblock_set_node.patch
sh-remove-sparsemem-related-entries-from-kconfig.patch
sh-drop-include-asm-sparsememh.patch
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2026-10-09 5:58 [merged mm-stable] docs-core-api-memory-allocation-clarify-when-to-use-kzalloc_obj-and-kzalloc.patch removed from -mm tree Andrew Morton
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