tree 4a6ce6ef72bb872a9f0a94933b3d6f749b58538e
parent 653a39d1f61bdc9f277766736d21d2e9be0391cb
author Sarah Sharp <sarah.a.sharp@linux.intel.com> 1293570522 -0800
committer Sarah Sharp <sarah.a.sharp@linux.intel.com> 1295049111 -0800

xhci: Use GFP_NOIO during device reset.

When xhci_discover_or_reset_device() is called after a host controller
power loss, the virtual device may need to be reallocated.  Make sure
xhci_alloc_dev() uses GFP_NOIO.  This avoid causing a deadlock by allowing
the kernel to flush pending I/O while reallocating memory for a virtual
device for a USB mass storage device that's holding the backing store for
dirty memory buffers.

This patch should be queued for the 2.6.37 stable tree.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org