[AEP]Add micro-optimizations to dax page pinning
Bug #1801248 reported by
quanxian
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| intel |
Fix Released
|
Undecided
|
Unassigned | ||
| linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bug Description
Description
We think we can save a few cpu cycles when pinning user pages mmap'ed from dax by avoiding the memtype_lock when looking up the memory type, and cache the dev_pagemap structure so we don't need to search the radix tree for it for every page.
Commits:
df06b37ffe5a442
Target Kernel: 4.19
Target Release: 19.04
| description: | updated |
| Changed in intel: | |
| status: | New → Fix Committed |
| Changed in intel: | |
| status: | Fix Committed → Fix Released |
| Changed in linux (Ubuntu): | |
| status: | New → Fix Released |
| tags: | added: cscc |
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