GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-26 00:21:17 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

[PATCH] remove active field from tty buffer structure

Browse source 
Remove 'active' field from tty buffer structure.  This was added in 2.6.16
as part of a patch to make the new tty buffering SMP safe.  This field is
unnecessary with the more intelligently written flush_to_ldisc that adds
receive_room handling.

Removing this field reverts to simpler logic where the tail buffer is
always the 'active' buffer, which should not be freed by flush_to_ldisc.
(active == buffer being filled with new data)

The result is simpler, smaller, and faster tty buffer code.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul Fulghum 2006-06-28 04:26:49 -07:00 • committed by Linus Torvalds
parent 2c3bb20f46
commit 33b37a33c2
4 changed files with 6 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/linux/tty.h
View file

@ -57,7 +57,6 @@ struct tty_buffer {
unsigned char *flag_buf_ptr;
int used;
int size;
int active;
int commit;
int read;
/* Data points here */