From: Dave Chinner <david@fromorbit.com>
To: Sai Chaitanya Mitta <mittachaitu@gmail.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: Approach to quickly zeroing large XFS file (or) tool to mark XFS file extents as written
Date: Tue, 24 Dec 2024 14:42:08 +1100 [thread overview]
Message-ID: <Z2otkMAbTdrbtNFW@dread.disaster.area> (raw)
In-Reply-To: <CAN=PFfLfRFE9g_9UveWmAuc5_Pp_ihmc7x_po0e6=sTt2dynBQ@mail.gmail.com>
On Mon, Dec 23, 2024 at 10:12:32PM +0530, Sai Chaitanya Mitta wrote:
> Hi Team,
> Is there any method/tool available to explicitly mark XFS
> file extents as written? One approach I
Writing data to the unwritten extent is the only way to do this.
Allowing uninitialised data extents to be converted to a written
state opens a massive hole in system security.
Go search for the discussions around FALLOC_FL_NO_HIDE_STALE from
well over a decade ago.....
-Dave
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2024-12-24 3:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-23 16:42 Approach to quickly zeroing large XFS file (or) tool to mark XFS file extents as written Sai Chaitanya Mitta
2024-12-23 21:53 ` Darrick J. Wong
2024-12-24 5:47 ` Sai Chaitanya Mitta
2025-01-06 19:46 ` Darrick J. Wong
2025-01-07 6:14 ` Christoph Hellwig
2025-01-07 7:04 ` Darrick J. Wong
2025-01-07 8:37 ` Christoph Hellwig
2025-01-07 22:11 ` Darrick J. Wong
2024-12-24 3:42 ` Dave Chinner [this message]
2025-01-06 11:15 ` Christoph Hellwig
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