On Fri, 2007-06-22 at 22:05 +0530, Vaidyanathan Srinivasan wrote:

Merging both limits will eliminate the issue, however we would need
individual limits for pagecache and RSS for better control.  There are
use cases for pagecache_limit alone without RSS_limit like the case of
database application using direct IO, backup applications and
streaming applications that does not make good use of pagecache.

I'm aware that some people want this. However we rejected adding a
pagecache limit to the kernel proper on grounds that reclaim should do a
better job.

And now we're sneaking it in the backdoor.

If we're going to do this, get it in the kernel proper first.

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