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On Wed, 23 Aug 2006 15:54:47 -0700, Andrew Morton wrote: > > > Some users have requested the ability to create a monitoring session > > > with perfmon2 from iside the kernel using a kernel thread. Perfmon2 > > > leverages a lot of kernel mechanisms which are not easy to use for > > > inside the kernel: e.g. file descriptor, signals, system calls. > > > > Again, please drop this. There are no planned intree kernel users > > so far, and once we add them we can architect a proper API for them. > > Getting rid of this should also help to collapse the tons of useless > > abstractions layers in the current perfmon code. > > > > Yes, I think we either need a stronger argument for including this code, or > we drop it. This interface is for people writing kprobes who want to do performance monitoring within their probe code. There will probably never be any in-kernel users, just like there are no in-kernel users of kprobes. > It is especially worrisome that the exports which are added here are plain > old EXPORT_SYMBOL(). kprobes exports are all GPL, so these should be too. -- Chuck - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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