propagate_mnt(9)

✨ propagate_mnt(9) — Kernel API Manual ✨

okay so bestie, welcome to the propagate_mnt(9) page in the Kernel API Manual. this one is all about creating secondary copies for tree attachment, and it's lowkey iconic kernel-tree business. 🫶✨

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🌸 NAME 🌸

propagate_mnt — create secondary copies for tree attachment

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✨ SYNOPSIS ✨

int propagate_mnt (struct mount *dest_mnt , struct mountpoint *dest_mp ,
       struct mount *source_mnt , struct hlist_head *tree_list );

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🎀 ARGUMENTS 🎀

• dest_mnt — destination mount.
• dest_mp — destination mountpoint.
• source_mnt — source mount.
• tree_list — list of secondaries to be attached.

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💅 DESCRIPTION 💅

okay so here's the tea: this creates secondary copies for attaching a tree with root source_mnt at mount dest_mnt with mountpoint dest_mp. it links all new mounts into a propagation graph. it sets mountpoints for all secondaries, and links their roots into tree_list via ->mnt_hash. slay. 💖

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🦋 SEE ALSO 🦋

• Kernel file ./fs/pnode.c
• propagation_would_overmount(9)
• propagate_umount(9)

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xoxo, ur kernel bestie 💅 — this page comes from ./fs, dated October 2026, and it's the propagate_mnt(9) manual. periodt. 🌈