Linux 7.1's FSMOUNT_NAMESPACE: One Syscall for Container Roots, No Dance Required

⚡ Key Takeaways

• FSMOUNT_NAMESPACE simplifies container rootfs creation to a single fsmount() syscall with namespace isolation baked in. 𝕏
• Benefits runtimes like CRI-O and runc by eliminating pivot_root() dances and race conditions. 𝕏
• Lands in Linux 7.1 VFS tree — expect runtime updates soon for faster pod startups. 𝕏