Additional write barrier in AdvanceXLInsertBuffer(). First, mark the xlblocks member with InvalidXLogRecPtr, then issue a write barrier, then initialize it. That ensures that the xlblocks member doesn't appear valid while the contents are being initialized.
In preparation for reading WAL buffer contents without a lock. Author: Bharath Rupireddy Discussion: https://postgr.es/m/calj2acvffmfqd5olzzsqqzwfxijqd-ndx0_317vep6fub31...@mail.gmail.com Reviewed-by: Andres Freund Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/766571be16598b401b5527208847145edc6be1f4 Modified Files -------------- src/backend/access/transam/xlog.c | 8 ++++++++ 1 file changed, 8 insertions(+)
