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| author |   Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2011-10-12 16:17:54 -0700 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2011-10-25 11:55:15 -0700 |
| commit | 97ce2c88f9ad42e3c60a9beb9fca87abf3639faa (patch) | |
| tree | c25d41a8754b6e11dbf54ba69ebbee11fdffd07e /include/linux/jump_label.h | |
| parent | x86/jump_label: add arch_jump_label_transform_static() (diff) | |
| download | linux-dev-97ce2c88f9ad42e3c60a9beb9fca87abf3639faa.tar.xz linux-dev-97ce2c88f9ad42e3c60a9beb9fca87abf3639faa.zip | |
jump-label: initialize jump-label subsystem much earlier
Initialize jump_labels much, much earlier, so they're available for use
during system setup.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Diffstat (limited to 'include/linux/jump_label.h')
| -rw-r--r-- | include/linux/jump_label.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h index 56594e45b011..388b0d425b50 100644 --- a/include/linux/jump_label.h +++ b/include/linux/jump_label.h @@ -16,7 +16,7 @@ struct jump_label_key { # include <asm/jump_label.h> # define HAVE_JUMP_LABEL -#endif +#endif /* CC_HAVE_ASM_GOTO && CONFIG_JUMP_LABEL */ enum jump_label_type { JUMP_LABEL_DISABLE = 0, @@ -41,6 +41,7 @@ static __always_inline bool static_branch(struct jump_label_key *key) extern struct jump_entry __start___jump_table[]; extern struct jump_entry __stop___jump_table[]; +extern void jump_label_init(void); extern void jump_label_lock(void); extern void jump_label_unlock(void); extern void arch_jump_label_transform(struct jump_entry *entry, @@ -53,7 +54,7 @@ extern void jump_label_dec(struct jump_label_key *key); extern bool jump_label_enabled(struct jump_label_key *key); extern void jump_label_apply_nops(struct module *mod); -#else +#else /* !HAVE_JUMP_LABEL */ #include <linux/atomic.h> @@ -63,6 +64,10 @@ struct jump_label_key { atomic_t enabled; }; +static __always_inline void jump_label_init(void) +{ +} + static __always_inline bool static_branch(struct jump_label_key *key) { if (unlikely(atomic_read(&key->enabled))) @@ -97,7 +102,6 @@ static inline int jump_label_apply_nops(struct module *mod) { return 0; } +#endif /* HAVE_JUMP_LABEL */ -#endif - -#endif +#endif /* _LINUX_JUMP_LABEL_H */ |