On Sat, Apr 20, 2013 at 11:18:17PM +0200, Bernd Schubert wrote:
> Alex, Andrew,
>
> did you notice the patch Ted just sent?
> ("ext4: mark all metadata I/O with REQ_META")
This patch was sent to fix another issue that was brought up at Linux
Storage, Filesystem, and MM workshop. I did bring up this issue with
Mel Gorman while at LSF/MM, and as a result, tThe mm folks are going
to look into making mark_page_accessed() do the right thing, or
perhaps provide us with new interface. The problem with forcing the
page to be marked as activated is this would cause a TLB flush, which
would be pointless since this these buddy bitmap pages aren't actually
mapped in anywhere.
- Ted
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