[PATCH] autofs4: use ACCESS_ONCE rather than rcu_dereference for dentry->d_inode

As the kbuild test robot reports, rcu_dereference() isn't really appropriate here - we don't need a memory barrier, just a guard against accidentally dereferencing NULL. This can be merged into autofs4: d_manage() should return -EISDIR when appropriate in rcu-walk mode. in 'mm'.

[PATCH] autofs4: use ACCESS_ONCE rather than rcu_dereference for dentry-d_inode

As the kbuild test robot reports, rcu_dereference() isn't really appropriate here - we don't need a memory barrier, just a guard against accidentally dereferencing NULL. This can be merged into autofs4: d_manage() should return -EISDIR when appropriate in rcu-walk mode. in 'mm'.