[for-next][PATCH 28/30] tracing: Add hist trigger log2 modifier

From: Namhyung Kim Allow users to have numeric fields displayed as log2 values in case value range is very wide by appending '.log2' to field names. For example, # echo 'hist:key=bytes_req' > kmalloc/trigger # cat kmalloc/hist { bytes_req:504 } hitcount:

[for-next][PATCH 28/30] tracing: Add hist trigger log2 modifier

From: Namhyung Kim Allow users to have numeric fields displayed as log2 values in case value range is very wide by appending '.log2' to field names. For example, # echo 'hist:key=bytes_req' > kmalloc/trigger # cat kmalloc/hist { bytes_req:504 } hitcount: 1 {