Re: filesystem transactions API

[Artem B. Bityuckiy]

Jamie Lokier wrote:
> No.  Why would you block?  You can have transactions without blocking
> other processes.
>
> When updating, say, the core-utils package (which contains cat),
> there's no reason why a program which executes "cat" should have to
> block during the update.  It can simply execute the old one until the
> new one is committed at the end of the update.
>
> It's analogous to RCU for protecting kernel data structures without
> blocking readers.
Hmm, can't we implement a user-space locking system which admits of 
readers during transactions? I gues we can.

--
Best regards, Artem B. Bityuckiy
Oktet Labs (St. Petersburg), Software Engineer.
+78124286709 (office) +79112449030 (mobile)
E-mail: dedekind@xxxxxxxxxxxx, web: http://www.oktetlabs.ru
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