On Tue, Sep 15, 2020 at 01:08:31PM +0300, Ard Biesheuvel wrote: > > But making atomic kmap preemptible/sleepable creates the exact same > problem, i.e., that we have no idea which existing callers are > currently relying on those preemption disabling semantics, so we can't > just take them away. Or am I missing something? Good point. Thomas mentioned that RT has been doing this for a while now so perhaps someone has studied this problem already? Thomas? Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
