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authorLinus Torvalds <torvalds@linux-foundation.org>2018-01-28 11:51:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-01-28 11:51:45 -0800
commit624441927ff6af871d793dfa49fa347c8450e250 (patch)
treee86adaab9e82eb357d243b0e27201972a3fbd37b /include
parent39e383626caffd2b5f4407710157b32172898869 (diff)
parentce48c146495a1a50e48cdbfbfaba3e708be7c07c (diff)
download96b-common-624441927ff6af871d793dfa49fa347c8450e250.tar.gz
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.h7
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.