Hi,
"Mulyadi Santosa" <[EMAIL PROTECTED]> writes:
> Hi
>
> On Sun, Jun 1, 2008 at 12:33 PM, Johannes Weiner <[EMAIL PROTECTED]> wrote:
>> It only drops clean stuff. So sync first manually.
>
> Hm, really? Isn't that also forcing sync?
No. See drop_caches_sysctl_handler() calling drop_pagecache() calling
__invalidate_mapping_pages(). The latter skips dirty pages and those
getting written back currently.
Hannes
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