Messages in this thread | | | Date | Wed, 14 May 2008 14:16:41 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [announce] "kill the Big Kernel Lock (BKL)" tree |
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Andi Kleen wrote: > Alan Cox wrote: >>> Most of the legacy users are unlikely to be latency problems, >>> simply because only very few people (or nobody) still has that hardware >>> and the code will never run. >>> >>> Also I wouldn't lose sleep over e.g. let ISDN continue using BKL forever. >> Most > > Most? > >> of the legacy users inflict that locking on other code - eg the ISN >> use of the BKL directly impacts on the tty layer work. > > So you just stick unlock_kernel()/lock_kernel() around the call > to TTY (or similar to the entry points) >
... assuming that the ISDN code doesn't assume lock continuity across the TTY call.
-hpa
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