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Message-Id: <1292445846-12101-5-git-send-email-matthew@wil.cx>
Date: Wed, 15 Dec 2010 15:44:06 -0500
From: matthew@....cx
To: Greg KH <greg@...ah.com>
Cc: linux-usb@...r.kernel.org, linux-scsi@...r.kernel.org,
linux-kernel@...r.kernel.org, Matthew Wilcox <matthew@....cx>,
Matthew Wilcox <willy@...ux.intel.com>
Subject: [PATCH 5/5] uas: Use GFP_NOIO instead of GFP_KERNEL in I/O submission path
From: Matthew Wilcox <matthew@....cx>
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@...e.de>
Signed-off-by: Matthew Wilcox <willy@...ux.intel.com>
---
drivers/usb/storage/uas.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 0ebe7f6..23f0dd9 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);
}
}
--
1.7.2.3
--
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