Public bug reported:
>From trusty through to vivid there is a copy_to/from_user patch that
improved performance on the m400. This patch was not pushed into wily's
4.2 kernel as a new one was nearing upstream acceptance. That patch has
now landed in linux-next and needs to be backported to wily's 4.2
kernel.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Craig Magina (craig.magina)
Status: In Progress
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Craig Magina (craig.magina)
** Summary changed:
- arm64 performance regression in wily 4.2 kernel on m400 due to dropped patch
+ [SRU] arm64 performance regression in wily 4.2 kernel on m400 due to dropped
patch
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https://bugs.launchpad.net/bugs/1508471
Title:
[SRU] arm64 performance regression in wily 4.2 kernel on m400 due to
dropped patch
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