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SubjectRe: [QUESTION] MOD_INC/MOD_DEC: useful to check for correct usage?


On Wed, 4 Apr 2001, Dawson Engler wrote:

> Hi,
>
> in the old days you couldn't call a sleeping function in a module
> before doing a MOD_INC or after doing a MOD_DEC. Then some safety nets
> were added that made these obsolete (in some number of places). I was
> told that people had decided to potentially get rid of all safety
> nets. Is this true? Is it worthwhile to have a checker for these two
> rules?

It's worth removing the MOD_{INC,DEC}_USE_COUNT. Which had been done
in quite a few places. Let the caller handle the refcount on callee -
_that_ is definitely safe.

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