WorkStruct: Separate delayable and non-delayable events.

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

View File

@ -35,7 +35,7 @@ static unsigned long linkwatch_flags;
static unsigned long linkwatch_nextevent;
static void linkwatch_event(void *dummy);
static DECLARE_WORK(linkwatch_work, linkwatch_event, NULL);
static DECLARE_DELAYED_WORK(linkwatch_work, linkwatch_event, NULL);
static LIST_HEAD(lweventlist);
static DEFINE_SPINLOCK(lweventlist_lock);
@ -171,10 +171,9 @@ void linkwatch_fire_event(struct net_device *dev)
unsigned long delay = linkwatch_nextevent - jiffies;
/* If we wrap around we'll delay it by at most HZ. */
if (!delay || delay > HZ)
schedule_work(&linkwatch_work);
else
schedule_delayed_work(&linkwatch_work, delay);
if (delay > HZ)
delay = 0;
schedule_delayed_work(&linkwatch_work, delay);
}
}
}