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Commit Graph

5 Commits

Author SHA1 Message Date
Zdenek Kabelac
60eb608d66 symver: restore and uncomment some symbols 2021-04-06 21:26:57 +02:00
Zdenek Kabelac
2f5ea9e61a exported_symbols: comment old symbols
Fix versioning for updated symbols dm_stats_create_region
and dm_stats_create_region.

Only the latest symbol should have global entry.

Since I'm not sure what is currenlty the best option for
old symbols - we added support for easy commenting of them
(so we do not lose information when the symbol appeared
for the first time.)

Note: some old already deleted symbols should have been
restored as comments.
2019-08-09 12:57:07 +02:00
Bryn M. Reeves
567189cc76 libdm: add per region precise timestamps property methods 2015-08-24 20:03:21 +01:00
Bryn M. Reeves
f4262026b6 libdm: add precise timestamps support to libdm-stats
Add support for the kernel precise_timestamps feature. This allows
regions to be created using counters with nanosecond precision.

A new dm_stats method, dm_stats_set_precise_timestamps() causes all
future regions created with this handle to attempt to enable precise
counters.
2015-08-24 20:03:21 +01:00
Bryn M. Reeves
386e91addb libdm: add dm_message_supports_precise_timestamps()
Add a function to test whether the kernel precise_timestamps
feature is available in the current device-mapper driver version.

Presence of precise_timestamps also implies the availability of
latency histograms.
2015-08-20 12:11:23 +01:00