The patch titled
Subject: lib-stackdepot-annotate-racy-slab_index-accesses-fix
has been added to the -mm mm-nonmm-unstable branch. Its filename is
lib-stackdepot-annotate-racy-slab_index-accesses-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/lib-stackdepot-annotate-racy-slab_index-accesses-fix.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: lib-stackdepot-annotate-racy-slab_index-accesses-fix
Date: Tue Jan 31 01:10:50 PM PST 2023
enhance comment, per Marco
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Cc: Evgenii Stepanov <eugenis@xxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/stackdepot.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/lib/stackdepot.c~lib-stackdepot-annotate-racy-slab_index-accesses-fix
+++ a/lib/stackdepot.c
@@ -271,7 +271,8 @@ depot_alloc_stack(unsigned long *entries
/*
* Move on to the next slab.
- * WRITE_ONCE annotates a race with stack_depot_fetch.
+ * WRITE_ONCE pairs with potential concurrent read in
+ * stack_depot_fetch().
*/
WRITE_ONCE(slab_index, slab_index + 1);
slab_offset = 0;
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
mm-mremap-fix-mremap-expanding-for-vmas-with-vm_ops-close-checkpatch-fixes.patch
mm-hugetlb-proc-check-for-hugetlb-shared-pmd-in-proc-pid-smaps-fix.patch
mm-hugetlb-proc-check-for-hugetlb-shared-pmd-in-proc-pid-smaps-fix-2.patch
mm-add-folio_add_new_anon_rmap-fix.patch
mm-remove-page_evictable-fix.patch
mm-remove-the-swap_readpage-return-value-fix.patch
block-remove-rw_page-fix.patch
mm-add-memcpy_from_file_folio-fix.patch
mm-replace-vma-vm_flags-direct-modifications-with-modifier-calls-fix.patch
error-injection-remove-ei_etype_none-fix.patch
hfsplus-remove-unnecessary-variable-initialization-fix.patch
scripts-gdb-add-mm-introspection-utils-fix.patch
lib-stackdepot-mm-rename-stack_depot_want_early_init-fix.patch
lib-stackdepot-annotate-racy-slab_index-accesses-fix.patch
