- in some cases realloc operation may be completed without
allocation of new buffer (and without additional data copy)
- added logic to reallocate buffer inplace if possible
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
(cherry picked from commit 277c2a9e5c7711098be826e6c154253747fdad9a)
f75d46faa9