* [patch 3/3] libata: reorder ata_device to remove 8 bytes of padding on 64 bits
@ 2008-09-22 21:47 akpm
2008-09-22 21:53 ` Alan Cox
0 siblings, 1 reply; 2+ messages in thread
From: akpm @ 2008-09-22 21:47 UTC (permalink / raw)
To: jeff; +Cc: linux-ide, akpm, richard
From: Richard Kennedy <richard@rsk.demon.co.uk>
reduce size by 8 bytes from 1160 to 1152 allowing it to fit in 1 fewer
cachelines.
Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/libata.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/libata.h~libata-reorder-ata_device-to-remove-8-bytes-of-padding-on-64-bits include/linux/libata.h
--- a/include/linux/libata.h~libata-reorder-ata_device-to-remove-8-bytes-of-padding-on-64-bits
+++ a/include/linux/libata.h
@@ -554,8 +554,8 @@ struct ata_ering {
struct ata_device {
struct ata_link *link;
unsigned int devno; /* 0 or 1 */
- unsigned long flags; /* ATA_DFLAG_xxx */
unsigned int horkage; /* List of broken features */
+ unsigned long flags; /* ATA_DFLAG_xxx */
struct scsi_device *sdev; /* attached SCSI device */
#ifdef CONFIG_ATA_ACPI
acpi_handle acpi_handle;
_
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [patch 3/3] libata: reorder ata_device to remove 8 bytes of padding on 64 bits
2008-09-22 21:47 [patch 3/3] libata: reorder ata_device to remove 8 bytes of padding on 64 bits akpm
@ 2008-09-22 21:53 ` Alan Cox
0 siblings, 0 replies; 2+ messages in thread
From: Alan Cox @ 2008-09-22 21:53 UTC (permalink / raw)
Cc: jeff, linux-ide, akpm, richard
On Mon, 22 Sep 2008 14:47:13 -0700
akpm@linux-foundation.org wrote:
> From: Richard Kennedy <richard@rsk.demon.co.uk>
>
> reduce size by 8 bytes from 1160 to 1152 allowing it to fit in 1 fewer
> cachelines.
>
> Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
> Cc: Jeff Garzik <jeff@garzik.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Alan Cox <alan@redhat.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2008-09-22 21:47 [patch 3/3] libata: reorder ata_device to remove 8 bytes of padding on 64 bits akpm
2008-09-22 21:53 ` Alan Cox
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