usb: storage: add support for write cache quirk
authorNamjae Jeon <namjae.jeon@samsung.com>
Sun, 8 Jul 2012 03:05:28 +0000 (23:05 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 16 Jul 2012 23:46:22 +0000 (16:46 -0700)
commite1bc9e50752c291a9ea602866331cd9e02049745
treed66f87eb9150dcd60da468c345b673e2d510cb1e
parent7620c687429553d469afb699565054748d74b81f
usb: storage: add support for write cache quirk

Add support for write cache quirk on usb hdd. scsi driver will be set to wce
by detecting write cache quirk in quirk list when plugging usb hdd.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Documentation/kernel-parameters.txt
drivers/usb/storage/scsiglue.c
drivers/usb/storage/usb.c
include/linux/usb_usual.h