cvs commit: src/sys/kern vfs_lookup.c

Poul-Henning Kamp phk at phk.freebsd.dk
Sat Apr 9 05:52:26 PDT 2005


In message <20050409082310.J28571 at 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 at 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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