Theodore Ts'o 61875f30da random: allow architectures to optionally define random_get_entropy()
Allow architectures which have a disabled get_cycles() function to
provide a random_get_entropy() function which provides a fine-grained,
rapidly changing counter that can be used by the /dev/random driver.

For example, an architecture might have a rapidly changing register
used to control random TLB cache eviction, or DRAM refresh that
doesn't meet the requirements of get_cycles(), but which is good
enough for the needs of the random driver.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
2013-10-10 14:30:53 -04:00
..
2013-06-03 14:20:18 -07:00
2013-03-15 12:23:48 -07:00
2013-05-05 00:11:29 -04:00
2013-02-22 23:31:31 -05:00
2013-02-22 23:31:31 -05:00
2013-05-05 00:12:29 -04:00
2013-05-05 00:12:29 -04:00
2013-06-03 14:31:39 -07:00
2012-10-16 18:07:12 -07:00
2012-11-21 12:55:19 -08:00
2011-03-31 11:26:23 -03:00
2013-07-03 16:08:03 -07:00
2013-02-22 23:31:31 -05:00
2012-03-28 18:30:03 +01:00
2012-10-07 07:22:32 -07:00
2013-02-22 23:31:31 -05:00
2013-02-22 23:31:31 -05:00
2011-01-10 08:51:44 -08:00
2013-02-22 23:31:31 -05:00