dm_parse_devices(9)

💫 dm_parse_devices(9) 💫

okay so bestie, welcome to the Kernel API Manual — yes that's the manual name, we're fancy here. this page is all about dm_parse_devices(9), a little function that does exactly one job and does it slayfully. let's get into it 🎀

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✨ NAME ✨

dm_parse_devices — parses the "dm-mod.create=" argument 🫶

like, that's it. that's the whole vibe. it takes that kernel command-line argument and makes sense of it. no cap.

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🌸 SYNOPSIS 🌸

int dm_parse_devices (struct list_head *devices , char *str );

look at her go 💅 the return type is int, she takes two args — genuinely iconic signature.

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🦋 ARGUMENTS 🦋

• devices — a list of struct dm_device, and its whole purpose in life is to store the parsed information. she's the container, the moment, the main character. ✨
• str — the pointer to a string, and that string has to be in this exact format:

<device>[;<device>+]

so: one <device>, then optionally a ; followed by one or more more <device>s, and so on. the + means "keep going", iykyk. 🙈

lowkey important: match the format exactly — <device>[;<device>+] — because that's literally what the function is expecting to chew on. 🍓

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🧚 SEE ALSO 🧚

• Kernel file ./drivers/md/dm-init.c
• str_field_delimit(9)
• dm_parse_table_entry(9)
• dm_parse_table(9)
• dm_parse_device_entry(9)
• dm_init_init(9)

the whole little parsing friend group honestly 🔥 go read them, they're all linked up and they all live near each other in ./drivers/md/dm-init.c.

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and that's the page, bestie!! 💖 this came to you from ./drivers/md and it's dated October 2026 — so like, future vibes but make it kernel. mwah, go parse something. 💜🌈👑