From: Andrew Morton <akpm@digeo.com>
To: Raghu R Arur <rra2002@columbia.edu>
Cc: linux-mm@kvack.org
Subject: Re: shrink_caches()
Date: Fri, 27 Jun 2003 21:35:35 -0700 [thread overview]
Message-ID: <20030627213535.56c0ab4a.akpm@digeo.com> (raw)
In-Reply-To: <Pine.GSO.4.50.0306261315060.26256-100000@aloha.cc.columbia.edu>
Raghu R Arur <rra2002@columbia.edu> wrote:
>
> I was going thru the code of shrink_caches(). it returns the difference
> between the number of pages requested to be freed and the number of pages
> that were actually freed. What i see over here is that the nr_pages which
> is the return value, is decremented only when the pages are freed from
> slab cache and page cache. The value is not decremented when the pages get
> freed from dentry cache, inode cache or the quota cache, which are freed
> at high memory pressure times. So when no pages get freed from page cache,
> but get freed from dentry/inode caches we will be returning a value which
> says that no pages were freed. Why is this done? can you PLEASE explain me
> this.
yes, it is an oversight. it's fixed in 2.5.
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prev parent reply other threads:[~2003-06-28 4:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-26 17:21 shrink_caches() Raghu R Arur
2003-06-28 4:35 ` Andrew Morton [this message]
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