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tty: Ldisc revamp

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Move the line disciplines towards a conventional ->ops arrangement.  For
the moment the actual 'tty_ldisc' struct in the tty is kept as part of
the tty struct but this can then be changed if it turns out that when it
all settles down we want to refcount ldiscs separately to the tty.

Pull the ldisc code out of /proc and put it with our ldisc code.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2008-07-16 21:53:12 +01:00 • committed by Linus Torvalds
parent e1e5770bb6
commit a352def21a
32 changed files with 286 additions and 246 deletions
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7
include/linux/tty_ldisc.h
View file

@ -104,7 +104,7 @@
#include <linux/fs.h>
#include <linux/wait.h>
struct tty_ldisc {
struct tty_ldisc_ops {
int magic;
char *name;
int num;
@ -142,6 +142,11 @@ struct tty_ldisc {
int refcount;
};
struct tty_ldisc {
struct tty_ldisc_ops *ops;
int refcount;
};
#define TTY_LDISC_MAGIC 0x5403
#define LDISC_FLAG_DEFINED 0x00000001