Re: Usage semantics of atomic_set ( )

[Vineet Gupta]

> What operations are you using to implement spinlocks?

The cpu provides atomic exchange instruction (atomic Read/write
semantics) which forms the back end of spin lock code.
__raw_spin_trylock( ) atomically swaps the lock memory with a reg (set
to 1)

Using a pool of spinlocks rather that original idea of spinlock per
atomic_t anyways seems to be a better idea.
I really appreciate the responses. Thanks a lot

-Vineet
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