Andy Shevchenko a93917d39f USB: gadget: storage: optional SCSI WRITE FUA bit ... MS Windows mounts removable storage in "Removal optimized mode" by default. All the writes to the media are synchronous which is achieved by setting FUA (Force Unit Access) bit in SCSI WRITE(10,12) commands. This prevents I/O requests aggregation in block layer dramatically decreasing performance. This patch brings an option to accept or ignore mentioned bit a) via specifying module parameter "nofua", or b) through sysfs entry /sys/devices/platform/_UDC_/gadget/gadget-lunX/nofua (_UDC_ is the name of the USB Device Controller driver) Patch is based on the work that was done by Denis Karpov for Maemo 5 platform. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Denis Karpov <ext-denis.2.karpov@nokia.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2010-08-10 14:35:42 -07:00
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debugfs-ec	Documentation: Add new /sys/kernel/debug/ec/* files to ABI	2010-08-03 09:49:07 -04:00
debugfs-pktcdvd	doc: use correct debugfs mountpoint	2009-04-13 15:04:33 -07:00
ima_policy	ima: rename PATH_CHECK to FILE_CHECK	2010-02-07 03:06:23 -05:00
procfs-diskstats	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
sysfs-block	block: Added in stricter no merge semantics for block I/O	2010-01-29 09:04:08 +01:00
sysfs-bus-css	[S390] cio: Introduce modalias for css bus.	2008-07-14 10:02:05 +02:00
sysfs-bus-i2c-devices-hm6352	hmc6352: add driver for the HMC6352 compass	2010-08-09 20:45:10 -07:00
sysfs-bus-pci	PCI: export SMBIOS provided firmware instance and label to sysfs	2010-07-30 09:36:01 -07:00
sysfs-bus-pci-devices-cciss	cciss: Add usage_count attribute to each logical drive in /sys	2009-10-01 21:15:44 +02:00
sysfs-bus-umc	uwb: document UWB and WUSB sysfs files	2008-09-17 16:54:35 +01:00
sysfs-bus-usb	USB: deprecate the power/level sysfs attribute	2010-05-20 13:21:37 -07:00
sysfs-bus-usb-devices-usbsevseg	USB: Added driver for a Delcom USB 7-segment LED Display	2008-10-17 14:40:51 -07:00
sysfs-c2port	Add c2 port support	2008-11-12 17:17:18 -08:00
sysfs-class	[PATCH] Add kernel<->userspace ABI stability documentation	2006-06-21 12:40:47 -07:00
sysfs-class-bdi	fuse: fix bdi naming conflict	2008-05-24 09:56:07 -07:00
sysfs-class-lcd	video/lcd: document sysfs interface	2009-08-28 15:21:12 -04:00
sysfs-class-led	led: document sysfs interface	2009-08-28 15:21:12 -04:00
sysfs-class-mtd	Documentation: add MTD sysfs docs	2009-05-29 15:13:04 +01:00
sysfs-class-pktcdvd	[PATCH] pktcdvd: cleanup	2007-02-11 10:51:28 -08:00
sysfs-class-power	ds2760_battery: Document ABI change	2010-05-19 12:25:39 +04:00
sysfs-class-regulator	regulator: add get_status()	2009-03-31 09:56:20 +01:00
sysfs-class-uwb_rc	uwb: add basic radio manager	2008-11-19 14:46:33 +00:00
sysfs-class-uwb_rc-wusbhc	USB: wusb: add wusb_phy_rate sysfs file to host controllers	2009-12-11 11:55:16 -08:00
sysfs-dev	sysfs: add /sys/dev/{char,block} to lookup sysfs path by major:minor	2008-07-21 21:54:40 -07:00
sysfs-devices	[PATCH] Add kernel<->userspace ABI stability documentation	2006-06-21 12:40:47 -07:00
sysfs-devices-memory	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
sysfs-devices-node	mm: compaction: add /sys trigger for per-node memory compaction	2010-05-25 08:06:59 -07:00
sysfs-devices-platform-_UDC_-gadget	USB: gadget: storage: optional SCSI WRITE FUA bit	2010-08-10 14:35:42 -07:00
sysfs-devices-power	PM: Add facility for advanced testing of async suspend/resume	2010-02-26 20:39:10 +01:00
sysfs-devices-system-cpu	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
sysfs-driver-hid-picolcd	HID: split picolcd's operation_mode sysfs attribute	2010-04-27 15:31:26 +02:00
sysfs-driver-hid-prodikeys	HID: Prodikeys PC-MIDI HID Driver	2010-05-12 15:18:59 +02:00
sysfs-driver-hid-roccat-kone	HID: roccat: remove obsolete kone_abi_version sysfs attribute	2010-06-21 15:20:35 +02:00
sysfs-firmware-acpi	ACPI: add /sys/firmware/acpi/interrupts/sci_not counter	2009-04-21 00:35:47 -04:00
sysfs-firmware-memmap	Bernhard has moved	2009-02-18 15:37:56 -08:00
sysfs-firmware-sfi	SFI: add sysfs interface for SFI tables.	2010-05-27 12:46:20 -04:00
sysfs-firmware-sgi_uv	sysfs: document files in /sys/firmware/sgi_uv/	2008-09-02 19:21:40 -07:00
sysfs-fs-ext4	ext4: teach the inode allocator to use a goal inode number	2009-06-13 11:45:35 -04:00
sysfs-gpio	gpiolib: allow poll() on value	2009-09-23 07:39:48 -07:00
sysfs-i2c-bmp085	drivers/misc: support for the pressure sensor BMP085 from Bosch Sensortec	2010-08-09 20:45:05 -07:00
sysfs-ibft	Firmware: add iSCSI iBFT Support	2008-04-19 19:10:28 -07:00
sysfs-kernel-mm	mm: create /sys/kernel/mm	2008-07-24 10:47:17 -07:00
sysfs-kernel-mm-hugepages	hugetlb: new sysfs interface	2008-07-24 10:47:17 -07:00
sysfs-kernel-slab	slub: allow stats to be cleared	2009-10-15 21:34:12 +03:00
sysfs-kernel-uids	Documentation: create new scheduler/ subdirectory	2008-02-07 08:42:17 -08:00
sysfs-memory-page-offline	HWPOISON: Add soft page offline support	2009-12-16 12:20:00 +01:00
sysfs-ocfs2	ocfs2: Document /sys/fs/ocfs2	2008-04-18 08:56:07 -07:00
sysfs-platform-asus-laptop	asus-laptop: set the right paths in the documentation	2010-02-28 19:35:09 +01:00
sysfs-platform-eeepc-laptop	eeepc-laptop: set the right paths in the documentation	2010-02-28 19:30:57 +01:00
sysfs-power	PM: Make it possible to avoid races between wakeup and system sleep	2010-07-19 01:58:48 +02:00
sysfs-pps	LinuxPPS: core support	2009-06-18 13:04:04 -07:00
sysfs-profiling	profiling: dynamically enable readprofile at runtime	2008-10-16 11:21:31 -07:00
sysfs-wacom	HID: wacom: add ABI doc entry for speed attribute	2010-04-23 02:14:10 +02:00
sysfs-wusb_cbaf	uwb: document UWB and WUSB sysfs files	2008-09-17 16:54:35 +01:00