From 0b83ae960cd7d4a5ee02786ecf41ab45688999bf Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <matthew@wil.cx>
Date: Wed, 15 Dec 2010 15:44:06 -0500
Subject: [PATCH] USB: uas: Use GFP_NOIO instead of GFP_KERNEL in I/O
 submission path

If swap is on a UAS device, we could recurse into the driver by using
GFP_KERNEL.  Using GFP_NOIO ensures we won't.

Reported-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/storage/uas.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 52e5ec1b2e8a..8d58c6316111 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -141,7 +141,7 @@ static void uas_do_work(struct work_struct *work)
 		struct scsi_pointer *scp = (void *)cmdinfo;
 		struct scsi_cmnd *cmnd = container_of(scp,
 							struct scsi_cmnd, SCp);
-		uas_submit_urbs(cmnd, cmnd->device->hostdata, GFP_KERNEL);
+		uas_submit_urbs(cmnd, cmnd->device->hostdata, GFP_NOIO);
 	}
 }
 
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