pgsql-server/src backend/storage/buffer/bufmgr ...

CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    wieck@svr1.postgresql.org    04/01/24 16:00:46

Modified files:
    src/backend/storage/buffer: bufmgr.c
    src/backend/utils/misc: guc.c postgresql.conf.sample
    src/include/storage: bufmgr.h

Log message:
    Added GUC variable bgwriter_flush_method controlling the action
    done by the background writer between writing dirty blocks and
    napping.

    none (default)   no action
    sync             bgwriter calls smgrsync() causing a sync(2)

    A global sync() is only good on dedicated database servers, so
    more flush methods should be added in the future.

    Jan