ceph_change_snap_realm(9)

💅 ceph_change_snap_realm

okay so this is the ceph_change_snap_realm(9) manual page from the Kernel API Manual, and it's literally about changing the snap_realm for an inode. bestie, we're moving inodes between snap realms and it's giving kernel-internals main character energy ✨

🎀 NAME

ceph_change_snap_realm — change the snap_realm for an inode 🦋

🌸 SYNOPSIS

void ceph_change_snap_realm (struct inode *inode , struct ceph_snap_realm *realm );

✨ ARGUMENTS

• inode — the inode you're moving to a new snap realm, periodt 💅
• realm — the new realm to move the inode into; it may be NULL, no cap 🙈

💖 DESCRIPTION

Detach an inode from its old snaprealm (if any) and attach it to the new snaprealm (if any). the old snap realm reference held by the inode gets put — that's the whole move 🔥

If realm is non-NULL, then the caller's reference to it is taken over by the inode. yep, the inode takes over that reference, so keep that in mind 👑

🫶 SEE ALSO

Kernel file ./fs/ceph/snap.c — go read it, iykyk 📖🌸

made with 💖 from ./fs/ceph — October 2026 — ceph_change_snap_realm(9) ⭐