kernel_optimize_test/include
Alan Stern 1941044aa9 USB: add "last_busy" field for use in autosuspend
This patch (as877) adds a "last_busy" field to struct usb_device, for
use by the autosuspend framework.  Now if an autosuspend call comes at
a time when the device isn't busy but hasn't yet been idle for long
enough, the timer can be set to exactly the desired value.  And we
will be ready to handle things like HID drivers, which can't maintain
a useful usage count and must rely on the time-of-last-use to decide
when to autosuspend.

The patch also makes some related minor improvements:

	Move the calls to the autosuspend condition-checking routine
	into usb_suspend_both(), which is the only place where it
	really matters.

	If the autosuspend timer is already running, don't stop
	and restart it.

	Replace immediate returns with gotos so that the optional
	debugging ouput won't be bypassed.

	If autoresume is disabled but the device is already awake,
	don't return an error for an autoresume call.

	Don't try to autoresume a device if it isn't suspended.
	(Yes, this undercuts the previous change -- so sue me.)

	Don't duplicate existing code in the autosuspend work routine.

	Fix the kerneldoc in usb_autopm_put_interface(): If an
	autoresume call fails, the usage counter is left unchanged.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:39 -07:00
..
acpi Pull bugzilla-8171 into release branch 2007-03-20 11:06:00 -04:00
asm-alpha Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-04-27 09:29:04 -07:00
asm-arm [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-arm26 [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-avr32 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2007-04-27 09:26:46 -07:00
asm-cris [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-frv [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-generic Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2007-04-27 09:26:46 -07:00
asm-h8300 [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-i386 [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-ia64 [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-m32r [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-m68k [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-m68knommu [PATCH] m68knommu: GPIO line defines for the ColdFire 5282 2007-03-06 18:08:38 -08:00
asm-mips Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2007-04-27 09:26:46 -07:00
asm-parisc [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-powerpc Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-04-27 09:29:04 -07:00
asm-ppc [POWERPC] ppc: Add support for AMCC Taishan 440GX eval board 2007-02-13 15:35:52 +11:00
asm-s390 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2007-04-27 09:26:46 -07:00
asm-sh Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-04-27 09:29:04 -07:00
asm-sh64 [NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution 2007-04-25 22:24:04 -07:00
asm-sparc Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-04-27 09:29:04 -07:00
asm-sparc64 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-04-27 09:29:04 -07:00
asm-um [NET]: div64_64 consolidate (rev3) 2007-04-25 22:23:33 -07:00
asm-v850 [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-x86_64 [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
asm-xtensa [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
crypto
keys [AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both 2007-04-26 15:48:28 -07:00
linux USB: add "last_busy" field for use in autosuspend 2007-04-27 13:28:39 -07:00
math-emu
media V4L/DVB (5441): Saa7146: Fix allocation of clipping memory 2007-03-27 08:45:56 -03:00
mtd UBI: Unsorted Block Images 2007-04-27 14:23:33 +03:00
net [WEXT]: Clean up how wext is called. 2007-04-26 20:43:56 -07:00
pcmcia serial: Add PCMCIA IDs for Quatech DSP-100 dual RS232 adapter. 2007-02-16 15:19:16 -08:00
rdma RDMA/cma: Add multicast communication support 2007-02-16 14:29:07 -08:00
rxrpc [AF_RXRPC]: Delete the old RxRPC code. 2007-04-26 15:55:48 -07:00
scsi Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-02-19 13:32:28 -08:00
sound [ALSA] version 1.0.14rc3 2007-03-14 08:25:52 +01:00
video [PATCH] Video: fb, add true ref_count atomicity 2007-02-12 09:48:42 -08:00
Kbuild