tree 5e2f1fdfc223b76ab798c87fd25bcff8d5f92eeb
parent 15f7176eb1cccec0a332541285ee752b935c1c85
author Alexey Dobriyan <adobriyan@gmail.com> 1238537955 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1238601548 -0700

proc tty: add struct tty_operations::proc_fops

Used for gradual switch of TTY drivers from using ->read_proc which helps
with gradual switch from ->read_proc for the whole tree.

As side effect, fix possible race condition when ->data initialized after
PDE is hooked into proc tree.

->proc_fops takes precedence over ->read_proc.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>