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* Nick Piggin <nickpiggin@yahoo.com.au> wrote: > Yes, that patch is basically what I had in mind. > > Is -rt ever allocating memory from really-hard-don't-preempt-me > context? I guess not, unless the zone->lock is one of those locks too, > right? no. zone->lock (and all the slab locks, and all the other MM locks) are fully preemptible too. > Should you add a > > #else > BUG_ON(_really_dont_preempt_me()); > #endif > > just for safety, or will such misusage get caught elsewhere (eg. when > attempting to take zone->lock). it should be caught immediately, by the cond_resched(). Ingo - 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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