diff options
| author | David Matlack <dmatlack@google.com> | 2016-12-16 14:30:35 -0800 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2017-01-26 17:40:35 +0100 |
| commit | a53623a647f19f179111002de01df3d67bf0d499 (patch) | |
| tree | c25ab96aa0a2f854ab1580f7876def58cb42d641 /include | |
| parent | f043f20c055e3485fb82e0955a9f94f50cdffe15 (diff) | |
jump_labels: API for flushing deferred jump label updates
commit b6416e61012429e0277bd15a229222fd17afc1c1 upstream.
Modules that use static_key_deferred need a way to synchronize with
any delayed work that is still pending when the module is unloaded.
Introduce static_key_deferred_flush() which flushes any pending
jump label updates.
[js] no STATIC_KEY_CHECK_USE in 3.12 -> remove it
Signed-off-by: David Matlack <dmatlack@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/jump_label_ratelimit.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/jump_label_ratelimit.h b/include/linux/jump_label_ratelimit.h index 113788389b3d..3f66ce8f0819 100644 --- a/include/linux/jump_label_ratelimit.h +++ b/include/linux/jump_label_ratelimit.h @@ -14,6 +14,7 @@ struct static_key_deferred { #ifdef HAVE_JUMP_LABEL extern void static_key_slow_dec_deferred(struct static_key_deferred *key); +extern void static_key_deferred_flush(struct static_key_deferred *key); extern void jump_label_rate_limit(struct static_key_deferred *key, unsigned long rl); @@ -25,6 +26,9 @@ static inline void static_key_slow_dec_deferred(struct static_key_deferred *key) { static_key_slow_dec(&key->key); } +static inline void static_key_deferred_flush(struct static_key_deferred *key) +{ +} static inline void jump_label_rate_limit(struct static_key_deferred *key, unsigned long rl) |