Date: Tue, 29 Mar 2005 10:57:28 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: "M. Warner Losh" <imp@bsdimp.com> Cc: ticso@cicely.de Subject: Re: Reattach/redetect allways connected umass device - is it possible ? Message-ID: <40326.1112086648@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 29 Mar 2005 01:46:02 PDT." <20050329.014602.66168889.imp@bsdimp.com>
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In message <20050329.014602.66168889.imp@bsdimp.com>, "M. Warner Losh" writes: >Then we'd have to poll every second in a sane way to accomplish that. >And finding the sane way that doesn't interfere with other bus usage >may be tricky. > >Unless we're going to give events to the actual user (meaning userland >entities that inform the user in a friendly way), I'd maintain that >there's no difference between knowing that the media is ejected >immediately, and the time of next use. The user experience will be >the same either way. The filesystems could get an upcall now when the disk disappears, but I have not had time to try to implement this sensibly in any filesystems yet. >In the short run, however, adding a few checks to critical parts of >the path, like daopen, would make the user experience much better. Absolutely, I just get uncomfortable when I see too much "...we can get away with...", I want us to stay the UNIX that solves problems the right way. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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