Re: Bypassing Directory Ownership Check in PostgreSQL 16.6 with Secure z/OS NFS (AT-TLS)

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: Benjamin Wang <benjamin(dot)ahrtr(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Peter J(dot) Holzer" <hjp-pgsql(at)hjp(dot)at>, pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: Bypassing Directory Ownership Check in PostgreSQL 16.6 with Secure z/OS NFS (AT-TLS)
Date: 2025-07-14 19:08:26
Message-ID: CAKFQuwbg-Bmu=XHY91o=FwXtnnhm9Sx=KdW3yvGq7XaMeiX1Lw@mail.gmail.com
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On Mon, Jul 14, 2025 at 12:02 PM Benjamin Wang <benjamin(dot)ahrtr(at)gmail(dot)com>
wrote:

> I am not sure whether PostgreSQL depends on system call `fsyncdata` to
> sync data to disk.
>

https://www.postgresql.org/docs/current/runtime-config-wal.html#GUC-WAL-SYNC-METHOD

David J.

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