procfs: make freeing proc_fs_info rcu-delayed
makes proc_pid_ns() safe from rcu pathwalk (put_pid_ns() is still synchronous, but that's not a problem - it does rcu-delay everything that needs to be) Reviewed-by:Christian Brauner <brauner@kernel.org> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
parent
47458802
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