xen/gntdev: convert priv->lock to a mutex

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commit 1401c00e59 upstream.

Unmapping may require sleeping and we unmap while holding priv->lock, so
convert it to a mutex.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
[ luis: 3.16 prereq for:
  30b03d05e0 xen/gntdevt: Fix race condition in gntdev_release() ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

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David Vrabel 2015-01-09 18:06:12 +00:00 • committed by Luis Henriques

parent 1fa60c74d7

commit 00c115f19e

1 changed files with 20 additions and 20 deletions

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drivers/xen/gntdev.c

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