[roll] Roll fuchsia Revert "[kernel][vm] Separately handle contiguous VMOs in ZeroPagesLocked"

This reverts commit cf3cdb93b453baa3ecfea0f98074268ccc09fb32.

Reason for revert: b/458594047

Original change's description:
> [kernel][vm] Separately handle contiguous VMOs in ZeroPagesLocked
>
> Break out the contiguous (direct_source_supplies_zero_pages) case from
> ZeroPagesLocked to its own helper method.
>
> We move most of the logic from ZeroPagesLocked to a new
> ZeroPagesNoDirectPageSourceLocked. Because this method can assume there
> is no direct page source, several conditions are eliminated or become
> simpler.
>
> This is part of a larger effort to simplify VmCowPages::ZeroPagesLocked.
>
> Original-Fixed: 456572308
> Original-Bug: 423017076
> Change-Id: I12e02d1e8c6811a1fd9507e57f486f93b6f4f3dc
> Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1409457
> Reviewed-by: Adrian Danis <adanis@google.com>
> Commit-Queue: Ethan Williams <ethanws@google.com>

Original-Bug: 423017076
Original-Fixed: 456572308
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1416776
Original-Revision: e99c8604eef6237f80edfc891eb04fd6d4f5f258
GitOrigin-RevId: 7f945c01824c38463e58c3de65d7cd6ce182bcde
Change-Id: I96ffcd468092242ac8209d7d063588fe0af74f1b
1 file changed
tree: 4e1b1bfa159a5bd7529aaae2cc9d14f90d525b68
  1. ctf/
  2. git-hooks/
  3. infra/
  4. third_party/
  5. flower
  6. jiri.lock
  7. MILESTONE
  8. minimal
  9. prebuilts
  10. README.md
  11. stem
  12. test_durations
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 in one of the communication channels documented at get involved.

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.