The patch titled
Subject: alloc_tag: export memory allocation profiling symbols used by modules
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
alloc_tag-export-memory-allocation-profiling-symbols-used-by-modules.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/alloc_tag-export-memory-allocation-profiling-symbols-used-by-modules.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Subject: alloc_tag: export memory allocation profiling symbols used by modules
Date: Thu, 11 Jul 2024 13:46:26 -0700
Export mem_alloc_profiling_key, page_ext_get() and page_ext_set() symbols
as they can be used by modules (mem_alloc_profiling_key is used indirectly
via mem_alloc_profiling_enabled()).
Link: https://lkml.kernel.org/r/20240711204626.1669138-1-surenb@xxxxxxxxxx
Fixes: 22d407b164ff ("lib: add allocation tagging support for memory allocation profiling")
Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202407080044.DWMC9N9I-lkp@xxxxxxxxx/
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Cc: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
Cc: Sourav Panda <souravpanda@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/alloc_tag.c | 1 +
mm/page_ext.c | 2 ++
2 files changed, 3 insertions(+)
--- a/lib/alloc_tag.c~alloc_tag-export-memory-allocation-profiling-symbols-used-by-modules
+++ a/lib/alloc_tag.c
@@ -15,6 +15,7 @@ EXPORT_SYMBOL(_shared_alloc_tag);
DEFINE_STATIC_KEY_MAYBE(CONFIG_MEM_ALLOC_PROFILING_ENABLED_BY_DEFAULT,
mem_alloc_profiling_key);
+EXPORT_SYMBOL(mem_alloc_profiling_key);
struct allocinfo_private {
struct codetag_iterator iter;
--- a/mm/page_ext.c~alloc_tag-export-memory-allocation-profiling-symbols-used-by-modules
+++ a/mm/page_ext.c
@@ -527,6 +527,7 @@ struct page_ext *page_ext_get(const stru
return page_ext;
}
+EXPORT_SYMBOL(page_ext_get);
/**
* page_ext_put() - Working with page extended information is done.
@@ -545,3 +546,4 @@ void page_ext_put(struct page_ext *page_
rcu_read_unlock();
}
+EXPORT_SYMBOL(page_ext_put);
_
Patches currently in -mm which might be from surenb@xxxxxxxxxx are
alloc_tag-export-memory-allocation-profiling-symbols-used-by-modules.patch
mm-add-comments-for-allocation-helpers-explaining-why-they-are-macros.patch
