Date: Sun, 23 Mar 2008 11:05:41 +0000 (GMT) From: Robert Watson <rwatson@FreeBSD.org> To: =?UTF-8?B?VsOhY2xhdiBIYWlzbWFu?= <v.haisman@sh.cvut.cz> Cc: freebsd-fs@freebsd.org, pjd@FreeBSD.org Subject: Re: Indication of extended attributes availability. Message-ID: <20080323110257.O80582@fledge.watson.org> In-Reply-To: <47E62AB7.60300@sh.cvut.cz> References: <47E43496.5080201@sh.cvut.cz> <20080322180253.B27442@fledge.watson.org> <47E55BC1.9080707@sh.cvut.cz> <20080322195758.K32322@fledge.watson.org> <47E570D2.8010502@sh.cvut.cz> <47E62AB7.60300@sh.cvut.cz>
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On Sun, 23 Mar 2008, Václav Haisman wrote: > What about <http://shell.sh.cvut.cz/~wilx/freebsd/extattr2.diff>? It extends > ufs_pathconf() with handling of _PC_XATTR_ENABLED. The patch is untested. I think it sounds fairly reasonable. However, the switch for ufs_pathconf() appears to be missing the _PC_XATTR_EXISTS case? I'd probably panic rather than KASSERT() there. I'll also need to update the fpathconf(2) man page to list _PC_XATTR_*. Finally, I'm not convinced, having reread the fsattr man page on Solaris, that what they mean by XATTR is what we mean by extended attribute. However, I think that's a confusion fairly specific to Solaris and that we do have and apply a consistent meaning for extended attribute. A question for Pawel would be how he plans to expose ZFS "extended attributes" (file streams) in FreeBSD, so I've CC'd him. Robert N M Watson Computer Laboratory University of Cambridge
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