Messages in this thread | | | Date | Sat, 21 Apr 2001 10:18:06 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: x86 rwsem in 2.4.4pre[234] are still buggy [was Re: rwsem benchmarks [Re: generic rwsem [Re: Alpha "process table hang"]]] |
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On Sat, 21 Apr 2001, Russell King wrote: > > Erm, spin_lock()? What if up_read or up_write gets called from interrupt > context (is this allowed)?
Currently that is not allowed.
We allow it for regular semaphores, but not for rw-semaphores.
We may some day have to revisit that issue, but I suspect we won't have much reason to.
Linus
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