From: "Martin K. Petersen" <mkp@mkp.net>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Eric Sandeen <sandeen@sandeen.net>,
"linux-ext4\@vger.kernel.org" <linux-ext4@vger.kernel.org>
Subject: Re: discard_zeroes_data questions
Date: Mon, 09 Nov 2015 19:16:28 -0500 [thread overview]
Message-ID: <yq1poziwvxf.fsf@sermon.lab.mkp.net> (raw)
In-Reply-To: <20151109233845.GA31524@birch.djwong.org> (Darrick J. Wong's message of "Mon, 9 Nov 2015 15:38:45 -0800")
>>>>> "Darrick" == Darrick J Wong <darrick.wong@oracle.com> writes:
Darrick> Last winter I sent in a patch to invalidate the page cache
Darrick> after a discard:
Darrick> https://marc.info/?l=linux-kernel&m=142249686225748&w=2
Darrick> ...because e2fsck gets confused it discards part of a d_z_d=1
Darrick> device and gets non-zeroed buffers back (from the page cache!)
Darrick> immediately after.
Darrick> But it never went in. Should I resend it?
Yes, please! I thought this had gone in...
--
Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2015-11-10 0:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-09 23:08 discard_zeroes_data questions Eric Sandeen
2015-11-09 23:38 ` Darrick J. Wong
2015-11-10 0:16 ` Martin K. Petersen [this message]
2015-11-10 0:15 ` Martin K. Petersen
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