pgsql/src/backend/storage/buffer bufmgr.c

CVSROOT:    /home/projects/pgsql/cvsroot
Module name:    pgsql
Changes by:    vadim@hub.org    01/03/21 05:13:30

Modified files:
    src/backend/storage/buffer: bufmgr.c

Log message:
    Check bufHdr->cntxDirty and call StartBufferIO in BufferSync()
    *before* acquiring shlock on buffer context. This way we should be
    protected against conflicts with FlushRelationBuffers.
    (Seems we never do excl lock and then StartBufferIO for the same
    buffer, so there should be no deadlock here, - but we'd better
    check this very soon).