Merge pull request #2089 from lpabon/lpabon_readforward

Support for READFORWARD in the caching tier

Reviewed-by: Sage Weil <sage@redhat.com>

diff --cc src/mon/MonCommands.h
Simple merge

diff --cc src/mon/OSDMonitor.cc
Simple merge

diff --cc src/osd/ReplicatedPG.cc
Simple merge

diff --cc src/osd/osd_types.h
Simple merge