Paul Fulghum
33b37a33c2
[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 >
2006-06-28 14:59:05 -07:00
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