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>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index abd2debebca2..5f04006e8dd2 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -568,8 +568,8 @@ struct ata_port {
         struct ata_host         *host;
         struct device           *dev;
 
-        struct work_struct      port_task;
-        struct work_struct      hotplug_task;
+        struct delayed_work     port_task;
+        struct delayed_work     hotplug_task;
         struct work_struct      scsi_rescan_task;
 
         unsigned int            hsm_task_state;