From: Ronnie Sahlberg <lsahlber@redhat.com>
To: linux-cifs <linux-cifs@vger.kernel.org>
Cc: Steve French <smfrench@gmail.com>
Subject: Improved fix for reading stale data when cache=none
Date: Mon, 19 Sep 2022 15:39:00 +1000 [thread overview]
Message-ID: <20220919053901.465232-1-lsahlber@redhat.com> (raw)
Steve, List
Please find a better patch to fix the data corruption issue I posted earlier
for when doing direct reads to an mmaped file after the mmaped area has changed.
The main difference is that I now destage and invalidate only the range that
is affected by the pread() and not the whole file so impact on performance should be reduced.
(that said, with cache=none there is probably no expectation of high performance in the first place )
next reply other threads:[~2022-09-19 5:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-19 5:39 Ronnie Sahlberg [this message]
2022-09-19 5:39 ` [PATCH] cifs: destage dirty pages before re-reading them for cache=none Ronnie Sahlberg
2022-09-19 14:46 ` Paulo Alcantara
2022-09-19 14:54 ` Enzo Matsumiya
2022-09-19 21:21 ` ronnie sahlberg
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