mips: configs: enable SquashFS compression support, OverlayFS

[MingcongBai]

Enable compressed SquashFS and OverlayFS support as required by the installation media. Also tune SquashFS defaults to optimise performance.

Summary by Sourcery

New Features:

• Support compressed SquashFS and OverlayFS on Loongson3 desktop systems.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request enables SquashFS compression and OverlayFS support for the MIPS architecture, specifically for the deepin_loongson3_desktop configuration. It also includes some performance tuning for SquashFS.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Enabled SquashFS compression and OverlayFS support.	Enabled CONFIG_SQUASHFS_LZ4. Enabled CONFIG_SQUASHFS_XZ. Enabled CONFIG_OVERLAY_FS.	arch/mips/configs/deepin_loongson3_desktop_defconfig
Tuned SquashFS defaults for performance.	Set CONFIG_SQUASHFS_BLOCK_SIZE to 1048576. Set CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE to 512.	arch/mips/configs/deepin_loongson3_desktop_defconfig

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[sourcery-ai]

Hey @MingcongBai - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: sourcery-ai[bot]
Once this PR has been reviewed and has the lgtm label, please ask for approval from mingcongbai. For more information see the Code Review Process.

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Details

Needs approval from an approver in each of these files:

• deepin/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[opsiff]

/lgtm