diff options
| author | Andrey Konovalov <andreyknvl@google.com> | 2023-12-21 19:35:39 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-29 11:58:46 -0800 |
| commit | fd4064f69708bc84d960b666896715fe86882c85 (patch) | |
| tree | 3738f707c74a76bef3b9658ab895bcacb995cd7c /mm/kasan/common.c | |
| parent | 04afc540e58e8f66fd85b0b88af3e8ce286be17c (diff) | |
kasan: simplify saving extra info into tracks
Avoid duplicating code for saving extra info into tracks: reuse the common
function for this.
Link: https://lkml.kernel.org/r/20231221183540.168428-3-andrey.konovalov@linux.dev
Fixes: 5d4c6ac94694 ("kasan: record and report more information")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Juntong Deng <juntong.deng@outlook.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/kasan/common.c')
| -rw-r--r-- | mm/kasan/common.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/mm/kasan/common.c b/mm/kasan/common.c index 86adf80cc11a..a486e9b1ac68 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -48,7 +48,7 @@ depot_stack_handle_t kasan_save_stack(gfp_t flags, depot_flags_t depot_flags) return stack_depot_save_flags(entries, nr_entries, flags, depot_flags); } -void kasan_set_track(struct kasan_track *track, gfp_t flags) +void kasan_set_track(struct kasan_track *track, depot_stack_handle_t stack) { #ifdef CONFIG_KASAN_EXTRA_INFO u32 cpu = raw_smp_processor_id(); @@ -58,8 +58,16 @@ void kasan_set_track(struct kasan_track *track, gfp_t flags) track->timestamp = ts_nsec >> 3; #endif /* CONFIG_KASAN_EXTRA_INFO */ track->pid = current->pid; - track->stack = kasan_save_stack(flags, + track->stack = stack; +} + +void kasan_save_track(struct kasan_track *track, gfp_t flags) +{ + depot_stack_handle_t stack; + + stack = kasan_save_stack(flags, STACK_DEPOT_FLAG_CAN_ALLOC | STACK_DEPOT_FLAG_GET); + kasan_set_track(track, stack); } #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) |