Messages in this thread | | | Date | Sun, 4 Jan 2004 16:23:01 -0800 | From | Andrew Morton <> | Subject | Re: Buffer and Page cache coherent? was: Strange IDE performance change in 2.6.1-rc1 (again) |
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Mike Fedyk <mfedyk@matchmail.com> wrote: > > So in what way is the buffer cache coherent with the pagecache? >
There is no "buffer cache" in Linux. There is a pagecache for /etc/passwd and there is a pagecache for /dev/hda1. They are treated pretty much identically. The kernel attaches buffer_heads to those pagecache pages when needed - generally when it wants to deal with individual disk blocks.
> Any progress on that pagecache coherent block relocation patch you had for > ext3? :)
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