"Pin", rather than "keep", dynamic shared memory mappings and segments.
Nobody seemed concerned about this naming when it originally went in,
but there's a pending patch that implements the opposite of
dsm_keep_mapping, and the term "unkeep" was judged unpalatable.
"unpin" has existing precedent in the PostgreSQL code base, and the
English language, so use this terminology instead.
Per discussion, back-patch to 9.4.
Branch
------
master
Details
-------
http://git.postgresql.org/pg/commitdiff/6057c212f3e783c45e050a78d070edf3e5f069f0
Modified Files
--------------
src/backend/storage/ipc/dsm.c | 10 +++++-----
src/backend/storage/ipc/dsm_impl.c | 2 +-
src/include/storage/dsm.h | 4 ++--
src/include/storage/dsm_impl.h | 2 +-
4 files changed, 9 insertions(+), 9 deletions(-)