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urcu-bp: don't copy old region upon mremap
author
Mathieu Desnoyers
<mathieu.desnoyers@efficios.com>
Wed, 29 Jun 2011 20:31:16 +0000
(16:31 -0400)
committer
Mathieu Desnoyers
<mathieu.desnoyers@efficios.com>
Wed, 29 Jun 2011 20:31:16 +0000
(16:31 -0400)
mremap keeps the same virtual pages for the old/new mappings. So
explicitly copying from the old mapping is not needed, and probably
buggy, since the old mapping might have been unmapped.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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