dmmp_...mpath(3)

💖 dmmp_flush_mpath — flush that multipath device map bestie 💖

okay so this is part of the Device Mapper Multipath API aka the libdmmp manual, and we are talking about dmmp_flush_mpath today. it's giving cleanup era. ✨

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🌸 NAME 🌸

dmmp_flush_mpath — Flush specified multipath device map if unused.

like, if nobody's using it, we're clearing it out. no cap. 💅

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✨ SYNOPSIS ✨

int dmmp_flush_mpath (struct dmmp_context *ctx, const char *mpath_name);

two args, one int coming back at you. iconic. 🎀

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🫶 ARGUMENTS 🫶

• ctx — Pointer of 'struct dmmp_context'. and listen, if this pointer is NULL, your program will be terminated by assert. not a vibe. not a drill. do not pass NULL here bestie, seriously. 😭
• mpath_name — const char *. The name of multipath device map. just the name, that's it, that's the whole thing. 🦋

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💫 DESCRIPTION 💫

Flush a multipath device map specified as parameter, if unused.

so like — you hand it a multipath device map, and if it's just sitting there unused, it gets flushed. that's the whole move. the "if unused" part is doing a LOT of heavy lifting there so don't forget it. 🌸

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🔥 RETURN 🔥

int. and the valid error codes are, in no particular order because they're all equally important:

• DMMP_OK 👑 (the slay outcome)
• DMMP_ERR_BUG 💀
• DMMP_ERR_NO_MEMORY 😭
• DMMP_ERR_NO_DAEMON 🙈
• DMMP_ERR_MPATH_BUSY (she's occupied, come back later)
• DMMP_ERR_MPATH_NOT_FOUND 🕵️
• DMMP_ERR_INVALID_ARGUMENT ✋
• DMMP_ERR_PERMISSION_DENY 🚫

and the error number could be converted to string by dmmp_strerror. so if you get a number and you're like "what does this MEAN", hit up dmmp_strerror and she'll translate. iykyk. ✨

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fr fr: check your return value. the number is not the message, dmmp_strerror is the message. don't skip that step. 💖

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and that's the page babes — this was dmmp_flush_mpath from the libdmmp manual (the dmmp_...mpath(3) one, you know the one), dated June 2025. go forth and flush responsibly. mwah. 💅🎀🦋