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H A Dfd.cdiff ddd3e0771bc7b869c550687c204e21f0155d5496 Sun Aug 26 09:28:20 CDT 2012 Cyrill Gorcunov <gorcunov@openvz.org> procfs: Convert /proc/pid/fdinfo/ handling routines to seq-file v2

This patch converts /proc/pid/fdinfo/ handling routines to seq-file which
is needed to extend seq operations and plug in auxiliary fdinfo provides
from subsystems like eventfd/eventpoll/fsnotify.

Note the proc_fd_link no longer call for proc_fd_info, simply because
the guts of proc_fd_info() got merged into ->show() of that seq_file

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