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| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-02-12 10:12:41 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-02-12 10:12:41 +0100 |
| commit | 104e00bbc76fc2a0fe887649d01d9c15f0e08021 (patch) | |
| tree | 40deeae5026da7aa54fae6c7b158bbb854a33520 /kernel/trace/tracing_map.c | |
| parent | aab5c6f200238ac45001bec3d5494fff8438a8dc (diff) | |
| parent | 841c35169323cd833294798e58b9bf63fa4fa1de (diff) | |
Merge tag 'v6.8-rc4' into gpio/for-next
Linux 6.8-rc4
Pulling this for a bugfix upstream with which the gpio/for-next branch
conflicts.
Diffstat (limited to 'kernel/trace/tracing_map.c')
| -rw-r--r-- | kernel/trace/tracing_map.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/trace/tracing_map.c b/kernel/trace/tracing_map.c index c774e560f2f9..a4dcf0f24352 100644 --- a/kernel/trace/tracing_map.c +++ b/kernel/trace/tracing_map.c @@ -574,7 +574,12 @@ __tracing_map_insert(struct tracing_map *map, void *key, bool lookup_only) } memcpy(elt->key, key, map->key_size); - entry->val = elt; + /* + * Ensure the initialization is visible and + * publish the elt. + */ + smp_wmb(); + WRITE_ONCE(entry->val, elt); atomic64_inc(&map->hits); return entry->val; |