On Tue, Mar 26, 2013 at 01:04:29PM +0100, Sebastian Ramacher wrote:
> On 2013-03-26 05:50:22, Marwan Tanager wrote:
> > This patch implements a page cache that is invalidated in a LRU fashion. 
> > 
> > Pages are added to the cache as soon as they become visible. When the cache 
> > is 
> > full and a new page that isn't in the cache becomes visible, the least 
> > recently 
> > viewed page in the cache is evicted from memory and the new one takes it's 
> > place.
> > 
> > The cache size is configurable using the page-cache-size configuration 
> > variable, with a default value of 15 pages. Very large values for the cache 
> > size are not recommended, though, as it will stress the system memory out.
> > 
> > The old periodic page reclaiming code is no longer necessary with this 
> > patch, 
> > so I removed it.
> Thanks. I've applied it with an additional check if the user-specified page
> size is positive. (Just in case someone thinks -1 is a good cache size
> and the code would allocate an array of INT_MAX integers).


I think you meant the user-specified cache size, not page size.

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