Date: Sat, 09 Apr 2005 14:52:16 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Jeff Roberson <jroberson@chesapeake.net> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern vfs_lookup.c Message-ID: <26855.1113051136@critter.freebsd.dk> In-Reply-To: Your message of "Sat, 09 Apr 2005 08:25:06 EDT." <20050409082310.J28571@mail.chesapeake.net>
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In message <20050409082310.J28571@mail.chesapeake.net>, Jeff Roberson writes: >On Sat, 9 Apr 2005, Jeff Roberson wrote: > >> jeff 2005-04-09 11:53:16 UTC >> >> FreeBSD src repository >> >> Modified files: >> sys/kern vfs_lookup.c > >With this change I'm able to make -j128 buildworld on a nullfs mount of >/usr/src at the same time as doing the same on the real /usr/src. The >intrduction of a vn_lock in vrele() more than 5 years ago broke this by >creating a lock order reversal in every place that vrele'd the dvp before >droping a child's lock. Will this also allow us to make more of vop_lookup() generic or does it still not pay off ? -- 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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