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| author | Maxime Ripard <mripard@kernel.org> | 2024-02-26 17:23:00 +0300 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2024-02-26 17:23:00 +0300 |
| commit | 2f910859724b53f1cd3579246e3d9bebb16d78b8 (patch) | |
| tree | 75cd2329b7e737865bf28ea734a2e0649c02a5bf /kernel/trace/tracing_map.c | |
| parent | 86bf8cfda6d2a6720fa2e6e676c98f0882c9d3d7 (diff) | |
| parent | 72fa02fdf83306c52bc1eede28359e3fa32a151a (diff) | |
| download | linux-2f910859724b53f1cd3579246e3d9bebb16d78b8.tar.xz | |
Merge drm/drm-fixes into drm-misc-fixes
Sima needs a more recent release to apply a patch.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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; |