| commit | 4db2ce0199f04b6e99999f22e28ef9a0ae5f0d2f | [log] [tgz] |
|---|---|---|
| author | David S. Miller <davem@davemloft.net> | Wed Sep 14 21:47:01 2005 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Wed Sep 14 21:47:01 2005 -0700 |
| tree | 87a00c97e02a77cdfec517398caa3f1d8f6a2f0d | |
| parent | 4a805e863d6b9466baf7084e1d6fdbe6e0628d8e [diff] |
[LIB]: Consolidate _atomic_dec_and_lock() Several implementations were essentialy a common piece of C code using the cmpxchg() macro. Put the implementation in one spot that everyone can share, and convert sparc64 over to using this. Alpha is the lone arch-specific implementation, which codes up a special fast path for the common case in order to avoid GP reloading which a pure C version would require. Signed-off-by: David S. Miller <davem@davemloft.net>