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| author |   Theodore Ts'o <tytso@mit.edu> | 2013-09-21 13:58:22 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-10-10 14:30:53 -0400 |
| commit | 61875f30daf60305712e25b209ef41ced2635bad (patch) | |
| tree | 176cda3ae729c520bff1b0f6a19806c18c0a7523 /init/main.c | |
| parent | random: run random_int_secret_init() run after all late_initcalls (diff) | |
| download | linux-dev-61875f30daf60305712e25b209ef41ced2635bad.tar.xz linux-dev-61875f30daf60305712e25b209ef41ced2635bad.zip | |
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
Diffstat (limited to 'init/main.c')
0 files changed, 0 insertions, 0 deletions