Hi, Remy Bohmer <l.pinguin <at> gmail.com> writes: > > Hello Thomas, > > I have build an implementation for the routine > futex_atomic_cmpxchg_inatomic() to make PTHREAD_PRIO_INHERIT mutex > work on ARM. > Compared to other architectures where CPU specific assembler is used, > it is probably not the most optimal implementation possible, but I > tested it successfully on a Atmel AT91RM9200 core, and it could work > on other (UP) architectures as well. > > What do you think of it? > Or do you know a better solution? May be you could have a look at __kuser_cmpxchg (arch/arm/kernel/entry-armv.S). There stuff for smp for armv6 and newer. For armv5 and older, maybe masking interrupt is the best solution. But I believe you should CC arm linux mailling list. You should find more arm expert :) Matthieu - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
