nilfs_mdt_delete_block(9)

💫 nilfs_mdt_delete_block 💫

okay so bestie, welcome to the Kernel API Manual 🎀 — this is the page for nilfs_mdt_delete_block, and it does exactly one iconic thing: it punches a hole in the meta data file. literally. a hole. in the metadata. iykyk 💅

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✨ NAME ✨

nilfs_mdt_delete_block — make a hole on the meta data file. that's the whole vibe, no cap 🕳️✨

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🦋 SYNOPSIS 🦋

int nilfs_mdt_delete_block (struct inode *inode , unsigned long block );

like yes that's the whole signature, she's short and she knows it 💖

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🌸 ARGUMENTS 🌸

• inode — inode of the meta data file. the main character of this whole operation, fr fr 👑
• block — block offset. telling us which block is getting the hole treatment 🫶

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⭐ RETURN ⭐

0 on success — slay, we ate 💅

or one of these negative error codes on failure, and ngl these are not the fun ones 😭:

• -EIO — I/O error (including metadata corruption). yeah. that. 💀
• -ENOENT — Non-existent block. the block said "i'm not here" 🙈
• -ENOMEM — Insufficient memory available. out of RAM, out of luck, lowkey tragic 😭

bestie pls read those carefully — metadata corruption and I/O errors are the real deal, so don't go blaming yourself when -EIO shows up 🔥

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🧚 SEE ALSO 🧚

Kernel file ./fs/nilfs2/mdt.c plus the whole friend group, all of them linked below, all of them iconic:

• nilfs_mdt_get_block(9)
• nilfs_mdt_find_block(9)
• nilfs_mdt_forget_block(9)
• nilfs_mdt_clear(9)
• nilfs_mdt_destroy(9)
• nilfs_mdt_setup_shadow_map(9)
• nilfs_mdt_save_to_shadow_map(9)
• nilfs_mdt_restore_from_shadow_map(9)
• nilfs_mdt_clear_shadow_map(9)

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and that's the page, bestie 🫶 one last thing for the record: this came from ./fs/nilfs2 and it's dated October 2026 — so when you cite it, cite it cute 💜🌈⭐

bye babes, go delete some blocks (safely) 💖✨