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Ned Bass
f0d8bb26b4
Adds a task queue to receive tasks dispatched with TQ_FRONT. Worker threads pull tasks from this high priority queue before the default pending queue. Executing tasks out of FIFO order potentially breaks taskq_lowest_id() if we do not preserve the ordering of the work list by taskqid. Therefore, instead of always appending to the work list, we search for the appropriate place to insert a task. The common case is to append to the list, so we make this operation efficient by searching the work list in reverse order. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
The Solaris Porting Layer (SPL) is a Linux kernel module which provides many of the Solaris kernel APIs. This shim layer makes it possible to run Solaris kernel code in the Linux kernel with relatively minimal modification. This can be particularly useful when you want to track upstream Solaris development closely and don’t want the overhead of maintaining a large patch which converts Solaris primitives to Linux primitives.
Documentation for building, configuring, and using the SPL can be found at: http://wiki.github.com/behlendorf/spl/