| commit | 61e1444816df473bb5648541ab6e5d8897972053 | |
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | |
| Tue, 28 Dec 2010 21:08:42 +0000 (28 13:08 -0800) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 17 Feb 2011 23:15:22 +0000 (17 15:15 -0800) | ||
| tree | 1a8a4356f4ae7a42643f31040bd44cec0e2c7a42 | treesnapshot (tar.gz zip) |
| parent | 1baa45caa1c0a5aa2075b0be7f8dea1ba35d59ea | commitdiff |
xhci: Use GFP_NOIO during device reset.
commit a6d940dd759bf240d28624198660ed34582a327b upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit a6d940dd759bf240d28624198660ed34582a327b upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/usb/host/xhci.c | diffblobblamehistory |