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Re: No more MAKEDEV?



Arjan van de Ven wrote:
On Thu, 18 Sep 2008 17:41:12 -0700
Bill Nottingham <notting redhat com> wrote:

Looking at some of the inefficiencies in bootup (in regards to the 5
second Fedora boot), we came across MAKEDEV. To be short - it's a pig.

The only user of it in Fedora is udev, which uses it for entries in
/etc/udev/makedev.d. However, there's an already-upstream solution
of putting device nodes in /lib/udev/devices. Why not just use this,
remove MAKEDEV, simplify start_udev, and boot faster?

this btw can be done in two steps; Step 1) Put the standard static device nodes in /lib/udev/devices
Step 2) Once MAKEDEV no longer is used as a result, obsolete it

Step 1) is obviously simple and can be done with no risk ... and will
in practice make MAKEDEV unused and gives you the boottime gain


I switched from /lib/udev/devices to MAKEDEV!

Complaints have been filed in bugzilla, because /lib should not contain devices.
a
# grep -r foo /lib
could do harm!

selinux does not like devices in /lib also.




Step 2) can be done later... to make people who guard freezes less
nervous




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