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WorkStruct: Separate delayable and non-delayable events.

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Separate delayable work items from non-delayable work items be splitting them
into a separate structure (delayed_work), which incorporates a work_struct and
the timer_list removed from work_struct.

The work_struct struct is huge, and this limits it's usefulness.  On a 64-bit
architecture it's nearly 100 bytes in size.  This reduces that by half for the
non-delayable type of event.

Signed-Off-By: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2006-11-22 14:54:01 +00:00
parent 0f9005a6f7
commit 52bad64d95
22 changed files with 96 additions and 73 deletions
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2
drivers/char/tty_io.c
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@@ -3580,7 +3580,7 @@ static void initialize_tty_struct(struct tty_struct *tty)
tty->overrun_time = jiffies;
tty->buf.head = tty->buf.tail = NULL;
tty_buffer_init(tty);
INIT_WORK(&tty->buf.work, flush_to_ldisc, tty);
INIT_DELAYED_WORK(&tty->buf.work, flush_to_ldisc, tty);
init_MUTEX(&tty->buf.pty_sem);
mutex_init(&tty->termios_mutex);
init_waitqueue_head(&tty->write_wait);