kernel: use rcu to access allowlist, refactor get allowlist api

[5ec1cff]

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[Copilot]

Pull request overview

This PR refactors the allow list API to optimize how the superuser count is retrieved. Instead of fetching the entire list of UIDs just to get the count, it introduces a dedicated getSuperuserCount() method that only returns the count. The API changes also introduce a more flexible allow list structure with support for paginated retrieval.

Key changes:

• Replaced direct allowList.size access with a new getSuperuserCount() native method
• Refactored the kernel ksu_get_allow_list_cmd structure to use a flexible array member and separate count fields
• Unified allow/deny list retrieval logic into a common do_get_list_common function with proper memory management

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
manager/app/src/main/java/me/weishu/kernelsu/ui/util/KsuCli.kt	Updated to call the new getSuperuserCount() method instead of accessing allowList.size
manager/app/src/main/java/me/weishu/kernelsu/Natives.kt	Removed the allowList property and added getSuperuserCount() external function
manager/app/src/main/cpp/ksu.h	Modified ksu_get_allow_list_cmd structure to use flexible array member and split count fields
manager/app/src/main/cpp/jni.cc	Replaced getAllowList() with getSuperuserCount() that only retrieves the total count
kernel/supercalls.h	Updated ksu_get_allow_list_cmd structure to match the userspace changes
kernel/supercalls.c	Refactored allow/deny list retrieval into common function with dynamic memory allocation
kernel/allowlist.h	Updated function signature to accept separate length and total count parameters
kernel/allowlist.c	Modified implementation to track both returned items and total count separately

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[Copilot]

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 10 comments.

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Pull request overview

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 3 comments.

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