Re: [RFC 0/2] new kfifo API

[Mike Christie]

On 08/03/2009 09:42 AM, Arnd Bergmann wrote:
> On Monday 03 August 2009, Stefani Seibold wrote:
> > This is a proposal of a new generic kernel FIFO implementation.
> >
> > The current kernel fifo API is not very widely used, because it has to many
> > constrains. Only 13 files in the current 2.6.30 used it. FIFO's are
> > like list are a very basic thing and a kfifo API which handles the most use
> > case would save a lot of time and memory resources.
> >
> > I think there are the following reasons why kfifo is not in use.
> >
> > - There is a need of a spinlock despite you need it or not
> > - A fifo can only allocated dynamically
> > - There is no support for data records inside a fifo
> > - The FIFO size can only a power of two


For iscsi, the only thing we have not liked with the current code is 
having to have the fifo a power of 2. It has not been that big a deal 
though.
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