Commit | Line | Data |
---|---|---|
d5de8841 JF |
1 | /* |
2 | * Split spinlock implementation out into its own file, so it can be | |
3 | * compiled in a FTRACE-compatible way. | |
4 | */ | |
5 | #include <linux/spinlock.h> | |
6 | #include <linux/module.h> | |
7 | ||
8 | #include <asm/paravirt.h> | |
9 | ||
63d3a75d JF |
10 | static void default_spin_lock_flags(struct raw_spinlock *lock, unsigned long flags) |
11 | { | |
12 | __raw_spin_lock(lock); | |
13 | } | |
14 | ||
d5de8841 JF |
15 | struct pv_lock_ops pv_lock_ops = { |
16 | #ifdef CONFIG_SMP | |
17 | .spin_is_locked = __ticket_spin_is_locked, | |
18 | .spin_is_contended = __ticket_spin_is_contended, | |
19 | ||
20 | .spin_lock = __ticket_spin_lock, | |
63d3a75d | 21 | .spin_lock_flags = default_spin_lock_flags, |
d5de8841 JF |
22 | .spin_trylock = __ticket_spin_trylock, |
23 | .spin_unlock = __ticket_spin_unlock, | |
24 | #endif | |
25 | }; | |
25258ef7 | 26 | EXPORT_SYMBOL(pv_lock_ops); |
d5de8841 JF |
27 | |
28 | void __init paravirt_use_bytelocks(void) | |
29 | { | |
30 | #ifdef CONFIG_SMP | |
31 | pv_lock_ops.spin_is_locked = __byte_spin_is_locked; | |
32 | pv_lock_ops.spin_is_contended = __byte_spin_is_contended; | |
33 | pv_lock_ops.spin_lock = __byte_spin_lock; | |
34 | pv_lock_ops.spin_trylock = __byte_spin_trylock; | |
35 | pv_lock_ops.spin_unlock = __byte_spin_unlock; | |
36 | #endif | |
37 | } |