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From: Geoffrey Lefebvre <geoffrey@cs.ubc.ca>
To: xen-devel@lists.xensource.com
Cc: Jake.Wires@xensource.com, andrew.warfield@cl.cam.ac.uk
Subject: [PATCH 0 of 2] RFC blktap: Small changes to blktap + added a hook to clear ptes on implicit release of VMAs.
Date: Mon, 21 May 2007 16:23:38 -0700	[thread overview]
Message-ID: <patchbomb.1179789818@localhost.localdomain> (raw)

Hi,

These patches contain changes to the kernel blktap code. The main change is the addition of a vma hook to clear ptes when linux implicitly releases a vma. This allows the block tap to release grants when a user level process such as tapdisk crashes. This fixes the problem of Xen killing a domain because of implicit grant unmapping.

The patches should apply cleanly to changeset 15080. Comments are most welcome.

Thanks,

geoffrey

             reply	other threads:[~2007-05-21 23:23 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-21 23:23 Geoffrey Lefebvre [this message]
2007-05-21 23:23 ` [PATCH 1 of 2] Small changes to blktap: free memory on release, invalidate p2m entry when unmapping grants, check for alloc failure of idx_map, added DONTCOPY flag Geoffrey Lefebvre
2007-05-21 23:23 ` [PATCH 2 of 2] Added a hook for clearing ptes when a vma is freed by the kernel. Adapted from gntdev Geoffrey Lefebvre

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