6d2fd66b99
BumpContext relies on using the head block from its 'blocks' field to use as the current block to allocate new chunks to. When we receive an allocation request larger than allocChunkLimit, we place these chunks on a new dedicated block and, until now, we pushed the block onto the *head* of the 'blocks' list. This behavior caused the previous bump block to no longer be available for new normal-sized (non-large) allocations and would result in blocks only being partially filled if a large allocation request arrived before the block became full. Here adjust the code to push these dedicated blocks onto the *tail* of the blocks list so that the head block remains intact and available to be used by normal allocation request sizes until it becomes full. In passing, make the elog(ERROR) calls for the unsupported callbacks consistent. Likewise for the header comments for those functions. Discussion: https://postgr.es/m/CAApHDvp9___r-ayJj0nZ6GD3MeCGwGZ0_6ZptWpwj+zqHtmwCw@mail.gmail.com Discussion: https://postgr.es/m/CAApHDvqerXpzUnuDQfUEi3DZA+9=Ud9WSt3ruxN5b6PcOosx2g@mail.gmail.com
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.