diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2024-08-14 16:56:42 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-08-14 16:59:28 -0400 |
| commit | ee057c8c194b9283f4137b253b70e292693a39f0 (patch) | |
| tree | 4ee9868bfc432e0b1230016cd316468719f0b477 /kernel/trace/tracing_map.c | |
| parent | b96c312551b241bc17226c5347c6d6b38a1efd3e (diff) | |
| parent | 7c626ce4bae1ac14f60076d00eafe71af30450ba (diff) | |
Merge tag 'v6.11-rc3' into trace/ring-buffer/core
The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be able to be mapped at the address specified by the "reserve_mem" command
line parameter.
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/tracing_map.c')
| -rw-r--r-- | kernel/trace/tracing_map.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/trace/tracing_map.c b/kernel/trace/tracing_map.c index a4dcf0f24352..3a56e7c8aa4f 100644 --- a/kernel/trace/tracing_map.c +++ b/kernel/trace/tracing_map.c @@ -454,7 +454,7 @@ static struct tracing_map_elt *get_free_elt(struct tracing_map *map) struct tracing_map_elt *elt = NULL; int idx; - idx = atomic_inc_return(&map->next_elt); + idx = atomic_fetch_add_unless(&map->next_elt, 1, map->max_elts); if (idx < map->max_elts) { elt = *(TRACING_MAP_ELT(map->elts, idx)); if (map->ops && map->ops->elt_init) @@ -699,7 +699,7 @@ void tracing_map_clear(struct tracing_map *map) { unsigned int i; - atomic_set(&map->next_elt, -1); + atomic_set(&map->next_elt, 0); atomic64_set(&map->hits, 0); atomic64_set(&map->drops, 0); @@ -783,7 +783,7 @@ struct tracing_map *tracing_map_create(unsigned int map_bits, map->map_bits = map_bits; map->max_elts = (1 << map_bits); - atomic_set(&map->next_elt, -1); + atomic_set(&map->next_elt, 0); map->map_size = (1 << (map_bits + 1)); map->ops = ops; |