Merge pull request #11839 from liewegas/wip-mempool-buffer

buffer: put buffers in buffer_{data,meta} mempools

Reviewed-by: Allen Samuels <allen.samuels@sandisk.com>

diff --cc src/include/mempool.h
index 577f97485a6deeca6169c3fa3b307f212383ff92,e8ce02a5b2ccf9557743b9bbd9b5fd46c3595da6..7ba83cbdcc59698de52df4c809c9f65dfd6c7631
--- 1/src/include/mempool.h
--- 2/src/include/mempool.h
+++ b/src/include/mempool.h
@@@ -140,9 -141,11 +141,12 @@@ namespace mempool 
  #define DEFINE_MEMORY_POOLS_HELPER(f) \
    f(unittest_1)                             \
    f(unittest_2)                             \
+   f(buffer_meta)                    \
+   f(buffer_data)                    \
+   f(osd)                            \
    f(bluestore_meta_onode)           \
 -  f(bluestore_meta_other)
 +  f(bluestore_meta_other)           \
 +  f(bluefs)
  
  // give them integer ids
  #define P(x) mempool_##x,