Re: blocking writes and tiger update
Re: blocking writes and tiger update
- Subject: Re: blocking writes and tiger update
- From: Shawn Erickson <email@hidden>
- Date: Mon, 2 May 2005 13:22:11 -0700
On May 2, 2005, at 11:17 AM, Nicolas Berloquin wrote:
Hello !
I'm new to the list, but I saw a few familiar names posting here ;D
I've searched the archives about blocking writes (or other
accesses) on
a storage device and found some suggestions like :
1 - use a stacked nullfs-like driver and call the 'super' methods.
2 - never use a stacked driver... ever
3 - the docs on vfs say that vfs are going to change, so don't use
that. (even at
todays' date, ie after tiger release.)
Since the docs on developer.apple.com haven't been updated for
tiger, I'm wondering
what the current state of affair is about all that.
Is is still verboten to use nullfs-like techniques ?
Will apple implement an NKE type of API, FSKE with usable hooks ?
thanks for any pointers or hints ^_^
You seen the following (note the VFS section)...?
<http://developer.apple.com/documentation/Darwin/Reference/
KPI_Reference/kpi_reference.html>
Also on Apple ADC downloads (log into ADC account, may require a seed
key) you can find a set of file system plugin samples.
Anyway what exactly do mean by blocking writes? What are you trying
to achieve?
-Shawn
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