calc_chunk_count(9)

💅 calc_chunk_count(9) 💅

okay so bestie, welcome to the Kernel API Manual, section 9 — this page is literally all about calc_chunk_count, and it’s giving “tiny helper with one job.” ✨

🌸 NAME 🌸

calc_chunk_count — calculates the number chunks to be filled in the Chunks[] array of struct copychunk_ioctl. no cap, that’s the whole gig. 💖

🦋 SYNOPSIS 🦋

u32 calc_chunk_count (struct cifs_tcon *tcon , u64 bytes_left , u32
       chunk_size );

🎀 ARGUMENTS 🎀

• tcon — destination file tcon. that’s the file we’re copying into, bestie.
• bytes_left — how many bytes are left to copy. the countdown, basically. ⏳
• chunk_size — maximum size of a single chunk. big chunk energy, but capped. 🍓

👑 RETURN 👑

maximum number of chunks with which Chunks[] can be filled. that’s the u32 you get back, and it’s exactly what it sounds like. 💅

🌈 SEE ALSO 🌈

• Kernel file ./fs/smb/client/smb2ops.c and __smb2_copychunk_range(9) — go peek at them, iykyk. 🔥

mwah 💋 — source/version: ./fs/smb/client, dated October 2026, and yes this page is calc_chunk_count(9). 🫶