Several kernel support tweaks:

- add btrfs-progs
- btrfs kernel support
- runtime PM
- re-enable usb suspend (needs runtime PM)
- pcie ASPM (power savings)
- several minor options to make powertop happier

conf/base.list

@@ -72,3 +72,4 @@ iwlwifi-3945-ucode
 iwlwifi-4965-ucode
 iwlwifi-5000-ucode
 b43-fwcutter
+btrfs-progs

kernels/conf/2.6/base

@@ -400,7 +400,7 @@ CONFIG_SUSPEND=y
 CONFIG_SUSPEND_FREEZER=y
 CONFIG_HIBERNATION=y
 CONFIG_PM_STD_PARTITION=""
-# CONFIG_PM_RUNTIME is not set
+CONFIG_PM_RUNTIME=y
 CONFIG_PM_OPS=y
 CONFIG_ACPI=y
 CONFIG_ACPI_SLEEP=y
@@ -499,7 +499,7 @@ CONFIG_PCIEPORTBUS=y
 CONFIG_PCIEAER=y
 CONFIG_PCIE_ECRC=y
 # CONFIG_PCIEAER_INJECT is not set
-# CONFIG_PCIEASPM is not set
+CONFIG_PCIEASPM=y
 CONFIG_ARCH_SUPPORTS_MSI=y
 CONFIG_PCI_MSI=y
 # CONFIG_PCI_STUB is not set
@@ -2655,9 +2655,11 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 #
 # Miscellaneous USB options
 #
-# CONFIG_USB_DEVICEFS is not set
-# CONFIG_USB_DEVICE_CLASS is not set
+CONFIG_USB_DEVICEFS=y
+CONFIG_USB_DEVICE_CLASS=y
 # CONFIG_USB_DYNAMIC_MINORS is not set
+CONFIG_USB_SUSPEND=y
+# CONFIG_USB_OTG is not set
 CONFIG_USB_MON=y
 # CONFIG_USB_WUSB is not set
 # CONFIG_USB_WUSB_CBAF is not set
@@ -3084,7 +3086,8 @@ CONFIG_XFS_POSIX_ACL=y
 # CONFIG_XFS_DEBUG is not set
 # CONFIG_GFS2_FS is not set
 # CONFIG_OCFS2_FS is not set
-# CONFIG_BTRFS_FS is not set
+CONFIG_BTRFS_FS=y
+CONFIG_BTRFS_FS_POSIX_ACL=y
 # CONFIG_NILFS2_FS is not set
 CONFIG_FILE_LOCKING=y
 CONFIG_FSNOTIFY=y

kernels/conf/2.6/base.x86_64

@@ -387,7 +387,7 @@ CONFIG_SUSPEND=y
 CONFIG_SUSPEND_FREEZER=y
 CONFIG_HIBERNATION=y
 CONFIG_PM_STD_PARTITION=""
-# CONFIG_PM_RUNTIME is not set
+CONFIG_PM_RUNTIME=y
 CONFIG_PM_OPS=y
 CONFIG_ACPI=y
 CONFIG_ACPI_SLEEP=y
@@ -473,7 +473,7 @@ CONFIG_PCIEPORTBUS=y
 CONFIG_PCIEAER=y
 CONFIG_PCIE_ECRC=y
 # CONFIG_PCIEAER_INJECT is not set
-# CONFIG_PCIEASPM is not set
+CONFIG_PCIEASPM=y
 CONFIG_ARCH_SUPPORTS_MSI=y
 CONFIG_PCI_MSI=y
 # CONFIG_PCI_STUB is not set
@@ -2596,9 +2596,11 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 #
 # Miscellaneous USB options
 #
-# CONFIG_USB_DEVICEFS is not set
-# CONFIG_USB_DEVICE_CLASS is not set
+CONFIG_USB_DEVICEFS=y
+CONFIG_USB_DEVICE_CLASS=y
 # CONFIG_USB_DYNAMIC_MINORS is not set
+CONFIG_USB_SUSPEND=y
+# CONFIG_USB_OTG is not set
 CONFIG_USB_MON=y
 # CONFIG_USB_WUSB is not set
 # CONFIG_USB_WUSB_CBAF is not set
@@ -3024,7 +3026,8 @@ CONFIG_XFS_POSIX_ACL=y
 # CONFIG_XFS_DEBUG is not set
 # CONFIG_GFS2_FS is not set
 # CONFIG_OCFS2_FS is not set
-# CONFIG_BTRFS_FS is not set
+CONFIG_BTRFS_FS=y
+CONFIG_BTRFS_FS_POSIX_ACL=y
 # CONFIG_NILFS2_FS is not set
 CONFIG_FILE_LOCKING=y
 CONFIG_FSNOTIFY=y