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authorTheodore Ts'o <tytso@mit.edu>2012-07-05 10:21:01 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-15 12:04:13 -0700
commitb2b6f1202d6f948bfe8d280dec83da1fef05a05c (patch)
treeb05d994874e35a5e048ca6202535bf9b186311fb /include/linux/random.h
parent118f98c7de67622c27ef9c968958b6de8483357f (diff)
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random: use the arch-specific rng in xfer_secondary_pool
commit e6d4947b12e8ad947add1032dd754803c6004824 upstream. If the CPU supports a hardware random number generator, use it in xfer_secondary_pool(), where it will significantly improve things and where we can afford it. Also, remove the use of the arch-specific rng in add_timer_randomness(), since the call is significantly slower than get_cycles(), and we're much better off using it in xfer_secondary_pool() anyway. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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