+ mm-vmalloc-enable-memory-allocation-profiling-fix.patch added to mm-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: arch/um: fix forward declaration for vmalloc
has been added to the -mm mm-unstable branch.  Its filename is
     mm-vmalloc-enable-memory-allocation-profiling-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmalloc-enable-memory-allocation-profiling-fix.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Suren Baghdasaryan <surenb@google.com>
Subject: arch/um: fix forward declaration for vmalloc
Date: Tue, 26 Mar 2024 00:37:50 -0700

Patch [1] replaced vmalloc() function with a new definition but it did not
adjust the forward declaration used in UML architecture.  Change it to act
as before.

Note that this prevents the vmalloc() allocations in __wrap_malloc() from
being accounted.  If accounting here is critical, we will have to remove
this forward declaration and include vmalloc.h, however that would pull in
more dependencies and would require introducing more architecture-specific
headers, like asm/bug.h, asm/rwonce.h, etc.  This is likely the reason why
this forward declaration was introduced in the first place.

[1] https://lore.kernel.org/all/20240321163705.3067592-31-surenb@google.com/

Link: https://lkml.kernel.org/r/20240326073750.726636-1-surenb@google.com
Fixes: 576477564ede ("mm: vmalloc: enable memory allocation profiling")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reported-by: SeongJae Park <sj@kernel.org>
Closes: https://lore.kernel.org/all/20240323180506.195396-1-sj@kernel.org/
Tested-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/um/include/shared/um_malloc.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/um/include/shared/um_malloc.h~mm-vmalloc-enable-memory-allocation-profiling-fix
+++ a/arch/um/include/shared/um_malloc.h
@@ -11,7 +11,8 @@
 extern void *uml_kmalloc(int size, int flags);
 extern void kfree(const void *ptr);
 
-extern void *vmalloc(unsigned long size);
+extern void *vmalloc_noprof(unsigned long size);
+#define vmalloc(...)		vmalloc_noprof(__VA_ARGS__)
 extern void vfree(void *ptr);
 
 #endif /* __UM_MALLOC_H__ */
_

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

mm-introduce-slabobj_ext-to-support-slab-object-extensions.patch
mm-introduce-__gfp_no_obj_ext-flag-to-selectively-prevent-slabobj_ext-creation.patch
mm-slab-introduce-slab_no_obj_ext-to-avoid-obj_ext-creation.patch
slab-objext-introduce-objext_flags-as-extension-to-page_memcg_data_flags.patch
lib-code-tagging-framework.patch
lib-code-tagging-module-support.patch
lib-prevent-module-unloading-if-memory-is-not-freed.patch
lib-add-allocation-tagging-support-for-memory-allocation-profiling.patch
lib-introduce-support-for-page-allocation-tagging.patch
lib-introduce-early-boot-parameter-to-avoid-page_ext-memory-overhead.patch
mm-percpu-increase-percpu_module_reserve-to-accommodate-allocation-tags.patch
change-alloc_pages-name-in-dma_map_ops-to-avoid-name-conflicts.patch
mm-enable-page-allocation-tagging.patch
mm-create-new-codetag-references-during-page-splitting.patch
mm-fix-non-compound-multi-order-memory-accounting-in-__free_pages.patch
mm-page_ext-enable-early_page_ext-when-config_mem_alloc_profiling_debug=y.patch
lib-add-codetag-reference-into-slabobj_ext.patch
mm-slab-add-allocation-accounting-into-slab-allocation-and-free-paths.patch
mm-slab-enable-slab-allocation-tagging-for-kmalloc-and-friends.patch
mm-percpu-enable-per-cpu-allocation-tagging.patch
mm-vmalloc-enable-memory-allocation-profiling-fix.patch
lib-add-memory-allocations-report-in-show_mem.patch
codetag-debug-skip-objext-checking-when-its-for-objext-itself.patch
codetag-debug-mark-codetags-for-reserved-pages-as-empty.patch
codetag-debug-introduce-objexts_alloc_fail-to-mark-failed-slab_ext-allocations.patch