Bug 4488 - [ANCK 4.19]mm/memory-failure: unnecessary amount of unmapping
Summary: [ANCK 4.19]mm/memory-failure: unnecessary amount of unmapping
Status: NEW
Alias: None
Product: ANCK 4.19 Dev
Classification: ANCK
Component: mm (show other bugs) mm
Version: 4.19-027.x
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: jiaoff
QA Contact: shuming
URL:
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Keywords:
Depends on:
Blocks:
 
Reported: 2023-03-10 21:58 UTC by jiaoff
Modified: 2023-03-16 11:25 UTC (History)
2 users (show)

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Description jiaoff 2023-03-10 21:58:02 UTC 
Description of problem:

  It appears that unmap_mapping_range() actually takes a 'size' as its third
  argument rather than a location, the current calling fashion causes
  unnecessary amount of unmapping to occur.

Additional info:
upstream:
https://github.com/torvalds/linux/commit/4d75136be8bf3ae01b0bc3e725b2cdc921e103bd