STRUCT NILFS_DAT_INFO(9)

🦋 struct nilfs_dat_info(9) 🦋

okay so this is a page from the Kernel API Manual (yes, that manual, the kernel one, we're fancy now 💅) and it's all about struct nilfs_dat_info — the on-memory private data of the DAT file. that's it. that's the whole vibe. it's giving "small struct, big responsibilities" ✨

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🌸 NAME 🌸

struct nilfs_dat_info — the on-memory private data of the DAT file. literally what it says on the tin, bestie 🎀

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✨ SYNOPSIS ✨

struct nilfs_dat_info {
    struct nilfs_mdt_info mi;
    struct nilfs_palloc_cache palloc_cache;
    struct nilfs_shadow_map shadow;
 };

look at her. three members. absolutely iconic. no notes 👑

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🫶 Members 🫶

• mi — the on-memory private data of the metadata file. yeah it's private data inside private data, we're going full inception here 🌀
• palloc_cache — the persistent object allocator cache of the DAT file. caching, but make it persistent. we love a queen who remembers things 💖
• shadow — the shadow map of the DAT file. spooky naming but it's just doing its job fr fr 🌚

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🔥 SEE ALSO 🔥

• Kernel file ./fs/nilfs2/dat.c
• nilfs_dat_mark_dirty(9)
• nilfs_dat_freev(9)
• nilfs_dat_move(9)
• nilfs_dat_translate(9)
• nilfs_dat_read(9)

go read those if you wanna know what actually happens with this struct, iykyk 📚

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ngl this page is short but it ate. every member accounted for, nothing skipped, no cap 🧚

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and that's the whole thing!! this one lives under ./fs/nilfs2 and the date on it is October 2026, header still reads struct nilfs_dat_info(9) like the main character she is. mwah 💋🌸 see u in the next manpage bestie 🫶✨