procfs: preparations for remove_proc_entry() race fixes
authorAl Viro <viro@zeniv.linux.org.uk>
Wed, 3 Apr 2013 23:07:30 +0000 (19:07 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Tue, 9 Apr 2013 19:16:51 +0000 (15:16 -0400)
* leave ->proc_fops alone; make ->pde_users negative instead
* trim pde_opener
* move relevant code in fs/proc/inode.c

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

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