diff options
| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-28 11:51:45 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-28 11:51:45 -0800 |
| commit | 624441927ff6af871d793dfa49fa347c8450e250 (patch) | |
| tree | e86adaab9e82eb357d243b0e27201972a3fbd37b /include | |
| parent | Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff) | |
| parent | sched/core: Fix cpu.max vs. cpuhotplug deadlock (diff) | |
| download | linux-dev-624441927ff6af871d793dfa49fa347c8450e250.tar.xz linux-dev-624441927ff6af871d793dfa49fa347c8450e250.zip | |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
"A single bug fix to prevent a subtle deadlock in the scheduler core
code vs cpu hotplug"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Fix cpu.max vs. cpuhotplug deadlock
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/jump_label.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h index c7b368c734af..e0340ca08d98 100644 --- a/include/linux/jump_label.h +++ b/include/linux/jump_label.h @@ -160,6 +160,8 @@ extern void arch_jump_label_transform_static(struct jump_entry *entry, extern int jump_label_text_reserved(void *start, void *end); extern void static_key_slow_inc(struct static_key *key); extern void static_key_slow_dec(struct static_key *key); +extern void static_key_slow_inc_cpuslocked(struct static_key *key); +extern void static_key_slow_dec_cpuslocked(struct static_key *key); extern void jump_label_apply_nops(struct module *mod); extern int static_key_count(struct static_key *key); extern void static_key_enable(struct static_key *key); @@ -222,6 +224,9 @@ static inline void static_key_slow_dec(struct static_key *key) atomic_dec(&key->enabled); } +#define static_key_slow_inc_cpuslocked(key) static_key_slow_inc(key) +#define static_key_slow_dec_cpuslocked(key) static_key_slow_dec(key) + static inline int jump_label_text_reserved(void *start, void *end) { return 0; @@ -416,6 +421,8 @@ extern bool ____wrong_branch_error(void); #define static_branch_inc(x) static_key_slow_inc(&(x)->key) #define static_branch_dec(x) static_key_slow_dec(&(x)->key) +#define static_branch_inc_cpuslocked(x) static_key_slow_inc_cpuslocked(&(x)->key) +#define static_branch_dec_cpuslocked(x) static_key_slow_dec_cpuslocked(&(x)->key) /* * Normal usage; boolean enable/disable. |