nilfs_read_super_root_block(9)

✨ NAME ✨

okay so bestie, welcome to the Kernel API Manual page for nilfs_read_super_root_block(9) — and the name is literally doing the most: nilfs_read_super_root_block means read super root block. iconic behavior, no cap 💅.

🦋 SYNOPSIS 🦋

the signature is giving very kernel-C main character energy, so here it is exactly:

int nilfs_read_super_root_block (struct the_nilfs *nilfs , sector_t
       sr_block , struct buffer_head **pbh , int check );

💅 ARGUMENTS 💅

• nilfs — the nilfs object. that’s the vibe it operates on 🫶
• sr_block — the disk block number of the super root block.
• pbh — the address of a buffer_head pointer to return super root buffer.
• check — the CRC check flag 🔥

🌸 RETURN 🌸

0 on success, or one of the following negative error codes on failure — yes, bestie, keep the receipts:

• -EINVAL — Super root block corrupted.
• -EIO — I/O error. 😭

🎀 SEE ALSO 🎀

Kernel file ./fs/nilfs2/recovery.c nilfs_compute_checksum(9), nilfs_read_log_header(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)

mwah 💋 — source/version is ./fs/nilfs2, dated October 2026, and this whole cute little page is nilfs_read_super_root_block(9). that’s the manual, bestie, periodt 🦋✨