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authorThomas Hellstrom <thellstrom@vmware.com>2012-11-21 15:53:21 +0100
committerDave Airlie <airlied@redhat.com>2012-11-28 09:37:59 +0100
commit82fe50bcc87e508e85250c87b745296a36a07897 (patch)
tree6fd205d9d0a92391e9bf5cf31a442a54992fe0b5 /drivers/hwspinlock
parentdrm/ttm: Use the hashtab _rcu interface for ttm_objects (diff)
downloadlinux-82fe50bcc87e508e85250c87b745296a36a07897.tar.xz
linux-82fe50bcc87e508e85250c87b745296a36a07897.zip
drm/ttm: Optimize vm locking using kref_get_unless_zero v3
Removes the need for a write lock each time we call ttm_bo_unref(). v2: Remove an unused variable. v3: Really remove the unused variable. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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