devfs patch, please test.

Poul-Henning Kamp phk at
Tue Aug 16 20:26:11 GMT 2005

Please test and report.

Back when devfs was first introduced, it was necessary to isolate the
device driver context(s) from the filesystem context(s) and a lot of
atomic instructions went into that.

Now that SMPng and various cleanups have simplified the world a bit,
this patch eliminates all the atomic fireworks and does away with the
"overflow" table and other nastyness.

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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