[roll] Roll fuchsia [kernel][vm] Remove redundant trim

Due to the way looking up multiple pages in a VmObject use to work,
that is the LookupPagesLocked interface, the requested pages from a
page fault was trimmed to prevent more than the actual faulting page
from being marked dirty. The current LookupCursor interface uses an
explicit IfExistPages lookup, which is not allowed to perform dirty
transitions, and so the requested length does not need specific
trimming.

This does not improve performance or change behavior, but it improves
code clarity as the existing comment, check and logic is now confusing
given the current LookupCursor behavior.

There are existing core-tests that explicitly validate that page faults
do not cause additional dirty transitions.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1048655
Original-Revision: 78d34c2413834be2238307e499b73e898920e49c
GitOrigin-RevId: ec53a237a2eb210c153f5d280671cc1d15dcf075
Change-Id: Id515207144e2ecf244a783a706f8a0936a366db5
1 file changed
tree: 81981324c6b3a460a659d01301e12354275b9aa1
  1. ctf/
  2. git-hooks/
  3. infra/
  4. third_party/
  5. cts
  6. firmware
  7. flower
  8. jiri.lock
  9. MILESTONE
  10. minimal
  11. prebuilts
  12. README.md
  13. stem
  14. test_durations
  15. toolchain
README.md

Integration

This repository contains Fuchsia's Global Integration manifest files.

Making changes

All changes should be made to the internal version of this repository. Our infrastructure automatically updates this version when the internal one changes.

Currently all changes must be made by a Google employee. Non-Google employees wishing to make a change can ask for assistance via the IRC channel #fuchsia on Freenode.

Obtaining the source

First install Jiri.

Next run:

$ jiri init
$ jiri import minimal https://fuchsia.googlesource.com/integration
$ jiri update

Third party

Third party projects should have their own subdirectory in ./third_party.