nilfs_read_log_header(9)

💖 nilfs_read_log_header 💖

okay bestie, quick vibe check: this page comes from the Kernel API Manual, and it’s lowkey just here to read one summary header from a log. tiny function, very specific job, we love that for it. 🫶

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🌸 NAME 🌸

nilfs_read_log_header — read the summary header of the specified log. 💅

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✨ SYNOPSIS ✨

struct buffer_head * nilfs_read_log_header (struct the_nilfs *nilfs , sector_t start_blocknr , struct nilfs_segment_summary **sum );

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🎀 ARGUMENTS 🎀

• nilfs — the nilfs object. like, the object you’re working with. 🦋
• start_blocknr — start block number of the log.
• sum — pointer to return segment summary structure. it’s the spot where that segment summary struct comes back. ✨

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🔥 RETURN 🔥

You get a buffer head pointer, or NULL if an I/O error occurs. that’s the whole tea. 🍓

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🌈 SEE ALSO 🌈

Kernel file: ./fs/nilfs2/recovery.c. The SEE ALSO squad is:

• nilfs_compute_checksum(9)
• nilfs_read_super_root_block(9)
• nilfs_validate_log(9)
• nilfs_read_summary_info(9)
• nilfs_skip_summary_info(9)
• nilfs_scan_dsync_log(9)
• nilfs_do_roll_forward(9)
• nilfs_abort_roll_forward(9)
• nilfs_salvage_orphan_logs(9)
• nilfs_search_super_root(9)

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okay bye bestie 💖 this page’s footer says source/version ./fs/nilfs2, dated October 2026, and the whole thing is nilfs_read_log_header(9). slay, periodt. 👑