Question (tty ldisc): safe to use disc_data without changing ldisc?

[Ulrich Windl]

Hello experts,

I have a question: In a kernel modification I dynamically add some data 
structure that is referred to by using the "disc_data" member of the tty 
structure. My question is: is it safe to do that (I'm using a new magic number 
of course), or can some other code just replace my reference? If it's not 
safe, how would I correctly do that?

Any pointers to written (up to date) online documents are OK...

Regards
Ulrich
P.S. not subscribed here, I won't survive the traffic. Please [B]CC: to me.


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