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authorDavid S. Miller <davem@davemloft.net>2005-09-14 21:47:01 -0700
committerDavid S. Miller <davem@davemloft.net>2005-09-14 21:47:01 -0700
commit4db2ce0199f04b6e99999f22e28ef9a0ae5f0d2f (patch)
tree87a00c97e02a77cdfec517398caa3f1d8f6a2f0d /Documentation/magic-number.txt
parent4a805e863d6b9466baf7084e1d6fdbe6e0628d8e (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>
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