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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2014-04-04 14:48:04 -0400
committerDavid Vrabel <david.vrabel@citrix.com>2014-04-15 17:41:28 +0100
commite0fc17a936334c08b2729fff87168c03fdecf5b6 (patch)
tree8a42f8c774ddd37f5b74650b114a0cade7fd1cd9 /drivers/xen
parentc0914e61660fa7d501ef9394b26f4847ef3dc98e (diff)
xen/spinlock: Don't enable them unconditionally.
The git commit a945928ea2709bc0e8e8165d33aed855a0110279 ('xen: Do not enable spinlocks before jump_label_init() has executed') was added to deal with the jump machinery. Earlier the code that turned on the jump label was only called by Xen specific functions. But now that it had been moved to the initcall machinery it gets called on Xen, KVM, and baremetal - ouch!. And the detection machinery to only call it on Xen wasn't remembered in the heat of merge window excitement. This means that the slowpath is enabled on baremetal while it should not be. Reported-by: Waiman Long <waiman.long@hp.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> CC: stable@vger.kernel.org CC: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
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