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    SubjectRe: [PATCH, RFC 1/3] Add sem_getcount() to arches that lack it
    On Thu, Mar 10, 2005 at 09:56:52PM -0800, Andrew Morton wrote:
    > That's a nice application of semaphores. I can see that there's also a
    > need to be able to read the value back for reporting purposes. Dang.
    > But I guess it's a bit hard to justify adding more infrastructure to
    > support a single callsite which has a simple alternative. So if you could
    > please add the separate counter?

    It's pretty *small* infrastructure, and it gives me something to whine at
    people about when they use atomic_read on something that isn't an atomic.

    > > ...
    > >
    > > If this patch isn't accepted, we should get rid of the xfs and 1394
    > > hacks and delete sem_getcount (parisc, frv) and sema_count (arm) as they
    > > are unused.
    > True.

    If we are going to get rid of sem_getcount, could we rename the 'count'
    variables, at least on i386 and ppc to make it clear that you're not
    supposed to do this ... maybe to 'count_$ARCH'?

    "Next the statesmen will invent cheap lies, putting the blame upon
    the nation that is attacked, and every man will be glad of those
    conscience-soothing falsities, and will diligently study them, and refuse
    to examine any refutations of them; and thus he will by and by convince
    himself that the war is just, and will thank God for the better sleep
    he enjoys after this process of grotesque self-deception." -- Mark Twain
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