Claude review: vfs: change inode->i_ino from unsigned long to u64

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Overall Series Review

Subject: vfs: change inode->i_ino from unsigned long to u64
Author: Jeff Layton <jlayton@kernel.org>
Patches: 3
Reviewed: 2026-02-27T11:50:53.889328

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This is a 61-patch series from Jeff Layton that changes `inode->i_ino` from `unsigned long` to `u64` across the kernel. The mbox has been filtered to show only the 3 messages relevant to DRM/dma-buf subsystems: the cover letter (patch 0/61), patch 52/61 (drm/amdgpu), and patch 56/61 (dma-buf).

The overall goal is well-motivated: `unsigned long` is 32 bits on 32-bit architectures, forcing filesystems to hash 64-bit identifiers into 32 bits. Changing to `u64` eliminates those hacks and provides a universal 64-bit inode identifier. The two patches touching DRM/dma-buf code are straightforward mechanical format string updates and are clearly correct.

**Recommendation: Acked-by for both drm/amdgpu and dma-buf patches.** These are trivially correct format string changes that follow directly from the type change in patch 2 of the series.

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