diff options
| author | Paul Fulghum <paulkf@microgate.com> | 2006-06-28 15:26:49 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-29 01:59:05 +0400 |
| commit | 33b37a33c242542fac2980b8ccd90977388b7a8d (patch) | |
| tree | e3a18605e57e1d1268dd04e9a3e5276f7f0488fe /include/linux/tty.h | |
| parent | 2c3bb20f46709a0adfa7ea408013edbcab945d5a (diff) | |
| download | linux-33b37a33c242542fac2980b8ccd90977388b7a8d.tar.xz | |
[PATCH] remove active field from tty buffer structure
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>
Diffstat (limited to 'include/linux/tty.h')
| -rw-r--r-- | include/linux/tty.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index 341cc4552c00..b3b807e4b050 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -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 */ |