ext2_alloc_blocks(9)

💖 ext2_alloc_blocks(9) 💖

okay so welcome to the Kernel API Manual, bestie — this one is all about grabbing multiple blocks for a branch, and honestly it's giving “allocator main character energy.” 👑

🌸 NAME 🌸

ext2_alloc_blocks — allocate multiple blocks needed for a branch. That's the whole vibe. 💅

✨ SYNOPSIS ✨

int ext2_alloc_blocks (struct inode *inode , ext2_fsblk_t goal , int
       indirect_blks , int blks , ext2_fsblk_t new_blocks[4] , int *err );

🎀 ARGUMENTS 🎀

• inode — owner. Like, whose blocks are these? 👑
• goal — preferred place for allocation. It's giving “put it near here if you can” energy. ✨
• indirect_blks — the number of blocks needed to allocate for indirect blocks.
• blks — the number of blocks need to allocate for direct blocks.
• new_blocks — on return it will store the new block numbers for the indirect blocks(if needed) and the first direct block. Literally the receipts. 🧾
• err — error pointer. That's it, that's the whole job. 🫶

🔥 RETURN 🔥

Number of blocks allocated. That's the return value, bestie — a count, periodt. 💯

🦋 SEE ALSO 🦋

• Kernel file ./fs/ext2/inode.c
• ext2_block_to_path(9)
• ext2_get_branch(9)
• ext2_find_near(9)
• ext2_find_goal(9)
• ext2_blks_to_allocate(9)
• ext2_alloc_branch(9)
• ext2_splice_branch(9)
• ext2_find_shared(9)
• ext2_free_data(9)
• ext2_free_branches(9)

xoxo, your fave kernel-docs bestie 💅 — source/version: ./fs/ext2, dated October 2026 🎀