From: "Theodore Ts'o" <tytso@mit.edu>
To: Lukas Czerner <lczerner@redhat.com>, linux-ext4@vger.kernel.org
Cc: "Theodore Ts'o" <tytso@mit.edu>,
adilger@dilger.ca, Laurent GUERBY <laurent@guerby.net>
Subject: Re: [PATCH v3 2/2] ext4: Allow to change s_last_trim_minblks via sysfs
Date: Tue, 4 Jan 2022 22:53:53 -0500 [thread overview]
Message-ID: <164135481976.265171.17012583253406040752.b4-ty@mit.edu> (raw)
In-Reply-To: <20211103145122.17338-2-lczerner@redhat.com>
On Wed, 3 Nov 2021 15:51:22 +0100, Lukas Czerner wrote:
> Ext4 has an optimization mechanism for batched disacrd (FITRIM) that
> should help speed up subsequent calls of FITRIM ioctl by skipping the
> groups that were previously trimmed. However because the FITRIM allows
> to set the minimum size of an extent to trim, ext4 stores the last
> minimum extent size and only avoids trimming the group if it was
> previously trimmed with minimum extent size equal to, or smaller than
> the current call.
>
> [...]
Applied, thanks!
[2/2] ext4: Allow to change s_last_trim_minblks via sysfs
commit: db19c4cdc28a8ec1241d50656991ab1bd96f5c02
Best regards,
--
Theodore Ts'o <tytso@mit.edu>
next prev parent reply other threads:[~2022-01-05 3:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-03 14:51 [PATCH 1/2] ext4: Change s_last_trim_minblks type to unsigned long Lukas Czerner
2021-11-03 14:51 ` [PATCH v3 2/2] ext4: Allow to change s_last_trim_minblks via sysfs Lukas Czerner
2021-11-03 20:20 ` Andreas Dilger
2021-12-20 15:13 ` Lukas Czerner
2022-01-05 3:53 ` Theodore Ts'o [this message]
2021-11-03 20:20 ` [PATCH 1/2] ext4: Change s_last_trim_minblks type to unsigned long Andreas Dilger
2022-01-05 3:52 ` Theodore Ts'o
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