diff options
| author | Jeff Garzik <jeff@garzik.org> | 2006-03-23 17:13:43 -0500 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-03-23 17:13:43 -0500 |
| commit | 88e3c1da8b3258a81c5c81d4e7e22557b7d71ba7 (patch) | |
| tree | ab518773c0ff4606f1a57d00b5931332a7e1d96e /include/asm-m68k/atomic.h | |
| parent | fa4fa40a990f8f4eff65476bef32007c154bbac0 (diff) | |
| parent | b0e6e962992b76580f4900b166a337bad7c1e81b (diff) | |
Merge branch 'master'
Diffstat (limited to 'include/asm-m68k/atomic.h')
| -rw-r--r-- | include/asm-m68k/atomic.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/asm-m68k/atomic.h b/include/asm-m68k/atomic.h index 862e497c2645..732d696d31a6 100644 --- a/include/asm-m68k/atomic.h +++ b/include/asm-m68k/atomic.h @@ -175,8 +175,14 @@ static inline void atomic_set_mask(unsigned long mask, unsigned long *v) ({ \ int c, old; \ c = atomic_read(v); \ - while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \ + for (;;) { \ + if (unlikely(c == (u))) \ + break; \ + old = atomic_cmpxchg((v), c, c + (a)); \ + if (likely(old == c)) \ + break; \ c = old; \ + } \ c != (u); \ }) #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) |