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Generic semaphore implementation

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Semaphores are no longer performance-critical, so a generic C
implementation is better for maintainability, debuggability and
extensibility.  Thanks to Peter Zijlstra for fixing the lockdep
warning.  Thanks to Harvey Harrison for pointing out that the
unlikely() was unnecessary.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Matthew Wilcox
2008-03-07 21:55:58 -05:00
committed by Matthew Wilcox
parent e48b3deee4
commit 64ac24e738
113 changed files with 314 additions and 7679 deletions
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2
arch/m32r/kernel/Makefile
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@@ -5,7 +5,7 @@
extra-y := head.o init_task.o vmlinux.lds
obj-y := process.o entry.o traps.o align.o irq.o setup.o time.o \
m32r_ksyms.o sys_m32r.o semaphore.o signal.o ptrace.o
m32r_ksyms.o sys_m32r.o signal.o ptrace.o
obj-$(CONFIG_SMP) += smp.o smpboot.o
obj-$(CONFIG_MODULES) += module.o