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authorDavid S. Miller <davem@davemloft.net>2005-09-15 00:47:01 -0400
committerDavid S. Miller <davem@davemloft.net>2005-09-15 00:47:01 -0400
commit4db2ce0199f04b6e99999f22e28ef9a0ae5f0d2f (patch)
tree87a00c97e02a77cdfec517398caa3f1d8f6a2f0d /arch/m32r
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>
Diffstat (limited to 'arch/m32r')
-rw-r--r--arch/m32r/Kconfig5
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 1ef3987ebc6a..4d100f3886e1 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -220,11 +220,6 @@ config PREEMPT
220 Say Y here if you are building a kernel for a desktop, embedded 220 Say Y here if you are building a kernel for a desktop, embedded
221 or real-time system. Say N if you are unsure. 221 or real-time system. Say N if you are unsure.
222 222
223config HAVE_DEC_LOCK
224 bool
225 depends on (SMP || PREEMPT)
226 default n
227
228config SMP 223config SMP
229 bool "Symmetric multi-processing support" 224 bool "Symmetric multi-processing support"
230 ---help--- 225 ---help---