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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2011-10-03 11:01:46 -0700
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2011-10-25 11:54:31 -0700
commit20284aa77c0f6227da4783a920b72dc61d4bcc09 (patch)
tree46fb708a9508e3d718be7eb432367547e71208d3 /arch/s390
parent92e02396d7214fdc7c25239eb647eb48e6fe6ba9 (diff)
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jump_label: add arch_jump_label_transform_static() to optimise non-live code updates
When updating a newly loaded module, the code is definitely not yet executing on any processor, so it can be updated with no need for any heavyweight synchronization. This patch adds arch_jump_label_static() which is implemented as arch_jump_label_transform() by default, but architectures can override it if it avoids, say, a call to stop_machine(). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Jason Baron <jbaron@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
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