Messages in this thread | | | From | "David S. Miller" <> | Date | Thu, 12 Apr 2001 01:44:44 -0700 (PDT) | Subject | Re: [CFT][PATCH] Re: Fwd: Re: memory usage - dentry_cache |
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Alexander Viro writes: > OK, how about wider testing? Theory: prune_dcache() goes through the > list of immediately killable dentries and tries to free given amount. > It has a "one warning" policy - it kills dentry if it sees it twice without > lookup finding that dentry in the interval. Unfortunately, as implemented > it stops when it had freed _or_ warned given amount. As the result, memory > pressure on dcache is less than expected.
The reason the code is how it is right now is there used to be a bug where that goto spot would --count but not check against zero, making count possibly go negative and then you'd be there for a _long_ time :-)
Just a FYI...
Later, David S. Miller davem@redhat.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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