[Deepin Kernel SIG] deepin: KABI: KABI reservation for dentry

[Avenger-285714]

structure                size reserves reserved

dentry                   200     2      216
dentry_operations        104     3      128

Link: https://gitee.com/openeuler/kernel/issues/I91CF6

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在dentry结构体中新增了两个未定义的宏DEEPIN_KABI_RESERVE，需要确认这些宏的作用以及它们是否与现有代码库兼容。
• 新增的宏DEEPIN_KABI_RESERVE可能影响现有代码的内存对齐方式，需要检查是否有相应的对齐调整。

是否建议立即修改:

• 是，需要确保新增代码的正确性和兼容性，并确保内存对齐的一致性。

[deepin-ci-robot]

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