[PATCH 4.4 11/75] bpf, inode: disallow userns mounts

4.4-stable review patch. If anyone has any objections, please let me know. -- From: Daniel Borkmann [ Upstream commit 612bacad78ba6d0a91166fc4487af114bac172a8 ] Follow-up to commit e27f4a942a0e ("bpf: Use mount_nodev not mount_ns to mount the bpf

[PATCH 4.4 11/75] bpf, inode: disallow userns mounts

4.4-stable review patch. If anyone has any objections, please let me know. -- From: Daniel Borkmann [ Upstream commit 612bacad78ba6d0a91166fc4487af114bac172a8 ] Follow-up to commit e27f4a942a0e ("bpf: Use mount_nodev not mount_ns to mount the bpf filesystem"), which removes