Date: Wed, 30 Nov 2011 10:05:11 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: Baptiste Daroussin <bapt@freebsd.org> Subject: Re: [patch] turning devctl into a "multiple openable" device Message-ID: <201111301005.11938.jhb@freebsd.org> In-Reply-To: <20111130124320.GA1449@azathoth.lan> References: <20111130124320.GA1449@azathoth.lan>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wednesday, November 30, 2011 7:43:20 am Baptiste Daroussin wrote: > Hi all, > > With the help of cognet, I wrote a patch to turn devctl into a multiple openable > device, that mean that it will allow to open /dev/devctl in multiple programs, > for example hald and everythings that want to receive notification from the > device won't need to depend on haveing devd running. > > here is the patch: > http://people.freebsd.org/~bapt/devctl_multi_open.diff Shouldn't devctl_queue_data_f() use the requested malloc() flags instead of hardcoding M_NOWAIT? Also, I know that it was an intentional design decisison by Warner to have the multiplexing of devctl data done in userland via devd rather than in the kernel. (I think he envisioned devd providing a UNIX domain socket or some such for other daemons to use to listen to events.) Have you asked him about this change? -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201111301005.11938.jhb>