tree f08dc498b28cd9a98abdd1c67346ddbf87eb06ca
parent 74d016ecc1a7974664e98d1afbf649cd4e0e0423
author Al Viro <viro@zeniv.linux.org.uk> 1700005962 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1700106478 -0500

bch2_ioctl_subvolume_destroy(): fix locking

make it use user_path_locked_at() to get the normal directory protection
for modifications, as well as stable ->d_parent and ->d_name in victim

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>