mtd_align_erase_req(9)

💅 mtd_align_erase_req — the Kernel API Manual, bestie edition 🎀

okay so this is mtd_align_erase_req(9) from the kernel API manual and it is literally the glow-up artist for erase requests ✨ it takes your kinda-sloppy erase request and snaps it onto eraseblock boundaries. no cap, it's giving "personal stylist for structs."

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✨ NAME ✨

mtd_align_erase_req — Adjust an erase request to align things on eraseblock boundaries. 🫶

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🌸 SYNOPSIS 🌸

void mtd_align_erase_req (struct mtd_info *mtd , struct erase_info *req );

like… that's it. one function, two pointers, zero drama. 💅

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🦋 ARGUMENTS 🦋

• mtd — the MTD device this erase request applies on. the main character device, iykyk 👑
• req — the erase request to adjust. this is the one getting the makeover 💖

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⭐ DESCRIPTION ⭐

This function will adjust req->addr and req->len to align them on mtd->erasesize. 🎀

so basically it grabs your request's address and length and lines them up all pretty on those eraseblock boundaries — the way that it just snaps everything into place? obsessed. 💅✨

Of course we expect mtd->erasesize to be != 0. 🌈 fr fr, do not come in here with a zero erasesize, that's not the vibe, that's undefined-behavior-adjacent behavior and we don't stan 😭

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🔥 SEE ALSO 🔥

• Kernel file ./include/linux/mtd/mtd.h
• struct mtd_oob_ops(9)
• struct mtd_oob_region(9)
• struct mtd_pairing_info(9)
• struct mtd_pairing_scheme(9)
• struct mtd_debug_info(9)
• struct mtd_part(9)
• struct mtd_master(9)

the whole struct squad, assembled 🧚💜 go read them, they're iconic.

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and that's the page bestie 💖 this one came out of ./include/linux/mtd, dated October 2026, and it's filed under mtd_align_erase_req(9) — slay, periodt, go align something. 🌸🦋🎀