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Description
We already keep the sector in the radix tree as part of the exceptional
entry. For page faults where we already have an exceptional entry, use
this information directly from the radix tree instead of calling into
the filesystem to get a block mapping. This should show a measurable
performance improvement, which should be reported as motivation for the
patches.
Target Kernel:TBD
Target Release: 19.04
** Affects: intel
Importance: Medium
Assignee: Canonical Kernel Team (canonical-kernel-team)
Status: Triaged
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: intel-kernel-19.04 kernel kernel-da-key
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[Feature] Crystal Ridge - Use FS DAX radix tree as a cache to service page
faults
https://bugs.launchpad.net/bugs/1704433
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