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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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4
fs/aio.c
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@ -227,7 +227,7 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
INIT_LIST_HEAD(&ctx->active_reqs);
INIT_LIST_HEAD(&ctx->run_list);
INIT_WORK(&ctx->wq, aio_kick_handler, ctx);
INIT_DELAYED_WORK(&ctx->wq, aio_kick_handler, ctx);
if (aio_setup_ring(ctx) < 0)
goto out_freectx;
@ -876,7 +876,7 @@ static void aio_kick_handler(void *data)
* we're in a worker thread already, don't use queue_delayed_work,
*/
if (requeue)
queue_work(aio_wq, &ctx->wq);
queue_delayed_work(aio_wq, &ctx->wq, 0);
}