nilfs_get_block(9)

nilfs_get_block(9) 💅

okay so bestie, welcome to the nilfs_get_block(9) page from the Kernel API Manual. It’s giving kernel callback that gets a file block on the filesystem energy, and we’re gonna read it together. 🫶

✨ NAME ✨

nilfs_get_block — get a file block on the filesystem (callback function). slay. 💖

🌸 SYNOPSIS 🌸

int nilfs_get_block (struct inode *inode , sector_t blkoff , struct
       buffer_head *bh_result , int create );

🎀 ARGUMENTS 🎀

• inode — the inode struct of the target file. literally the main character file info. 💖
• blkoff — file block number. yes bestie, the block number. ✨
• bh_result — buffer head to be mapped on. 🦋
• create — indicates whether allocating the block or not when it has not been allocated yet. so like, allocation-permission energy. 💅

💖 DESCRIPTION 💖

Heads up though: this function does not issue the actual read request of the specified data block. That part is done by VFS. no cap, VFS handles it. 🫶

🌈 RETURN 🌈

0 on success, or a negative error code on failure. periodt. 💅

👑 SEE ALSO 👑

• Kernel file ./fs/nilfs2/inode.c — struct nilfs_iget_args(9)
• nilfs_read_folio(9)
• nilfs_attach_btree_node_cache(9)
• nilfs_detach_btree_node_cache(9)
• nilfs_iget_for_shadow(9)
• nilfs_write_inode_common(9)
• nilfs_dirty_inode(9)

okay that’s the whole read, bestie — source/version ./fs/nilfs2, dated October 2026 💖✨