From: Richard Kennedy <richard@rsk.demon.co.uk>
To: jgarzik@pobox.com
Cc: lkml <linux-kernel@vger.kernel.org>, linux-ide@vger.kernel.org
Subject: [PATCH] libata: reorder ata_device to remove 8 bytes of padding on 64 bits
Date: Thu, 21 Aug 2008 14:47:00 +0100 [thread overview]
Message-ID: <1219326420.1276.8.camel@castor.localdomain> (raw)
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>
---
patch against 2.6.27-rc4 compiled & run on AMD64.
Richard
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 06b8033..84a7a0d 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -553,8 +553,8 @@ 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;
reply other threads:[~2008-08-21 13:47 UTC|newest]
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