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| author | Theodore Ts'o <tytso@mit.edu> | 2013-10-03 01:08:15 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-10-10 14:32:22 -0400 |
| commit | 6265e169cd313d6f3aad3c33d0a5b0d9624f69f5 (patch) | |
| tree | e029093b5e94f431f1d00cb13bf76bd024abfe7a /include/trace | |
| parent | 95b709b6be49e4ff3933ef6a5b5e623de2713a71 (diff) | |
| download | linux-6265e169cd313d6f3aad3c33d0a5b0d9624f69f5.tar.bz2 | |
random: push extra entropy to the output pools
As the input pool gets filled, start transfering entropy to the output
pools until they get filled. This allows us to use the output pools
to store more system entropy. Waste not, want not....
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/random.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/trace/events/random.h b/include/trace/events/random.h index 2ffcaec5860a..527b5dc1b416 100644 --- a/include/trace/events/random.h +++ b/include/trace/events/random.h @@ -87,6 +87,28 @@ TRACE_EVENT(credit_entropy_bits, (void *)__entry->IP) ); +TRACE_EVENT(push_to_pool, + TP_PROTO(const char *pool_name, int pool_bits, int input_bits), + + TP_ARGS(pool_name, pool_bits, input_bits), + + TP_STRUCT__entry( + __field( const char *, pool_name ) + __field( int, pool_bits ) + __field( int, input_bits ) + ), + + TP_fast_assign( + __entry->pool_name = pool_name; + __entry->pool_bits = pool_bits; + __entry->input_bits = input_bits; + ), + + TP_printk("%s: pool_bits %d input_pool_bits %d", + __entry->pool_name, __entry->pool_bits, + __entry->input_bits) +); + DECLARE_EVENT_CLASS(random__get_random_bytes, TP_PROTO(int nbytes, unsigned long IP), |