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lib/stackdepot: check disabled flag when fetching

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Do not try fetching a stack trace from the stack depot if the
stack_depot_disabled flag is enabled.

Link: https://lkml.kernel.org/r/c3bfa3b7ab00b2e48ab75a3fbb9c67555777cb08.1700502145.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Andrey Konovalov 2023-11-20 18:47:00 +01:00 committed by Andrew Morton
parent 4d07a03723
commit 0c5d44a814
1 changed files with 1 additions and 1 deletions
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2
lib/stackdepot.c
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@ -483,7 +483,7 @@ unsigned int stack_depot_fetch(depot_stack_handle_t handle,
*/ */
kmsan_unpoison_memory(entries, sizeof(*entries)); kmsan_unpoison_memory(entries, sizeof(*entries));
if (!handle) if (!handle || stack_depot_disabled)
return 0; return 0;
if (parts.pool_index > pool_index_cached) { if (parts.pool_index > pool_index_cached) {