From: Martin Steigerwald <Martin@lichtvoll.de>
To: linux-btrfs@vger.kernel.org
Subject: Re: fstrim not working on one of three BTRFS filesystems
Date: Mon, 29 Dec 2014 10:06:09 +0100 [thread overview]
Message-ID: <473294984.vKf8bAYoVi@merkaba> (raw)
In-Reply-To: <pan$e8b97$69faf00b$ca66e14d$c2effd06@cox.net>
Am Montag, 29. Dezember 2014, 02:08:21 schrieb Duncan:
> Martin Steigerwald posted on Sun, 28 Dec 2014 17:58:17 +0100 as excerpted:
>
> > The fstrim on /home returns immediately. It does not even seem to trim
> > anything. What could be the cause for that?
>
> While I don't know your mapper layout, trim working on the others but not
> on /home sounds to me like either one of the physical devices on which
> /home is located doesn't support trim, or they all do, but somewhere
> along the line that information is being lost, so it doesn't believe trim
> can actually work on that filesystem. Typical shortcut "the information
> available says that can't work, simply return before trying" behavior.
Duncan, it did trim before. Its on two SSDs that definately support trim.
Anyway, I got an hint about it of list with a patch to test.
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
next prev parent reply other threads:[~2014-12-29 9:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-28 16:58 fstrim not working on one of three BTRFS filesystems Martin Steigerwald
2014-12-29 1:53 ` Robert White
2014-12-29 2:08 ` Duncan
2014-12-29 9:06 ` Martin Steigerwald [this message]
2014-12-29 13:23 ` Martin Steigerwald
-- strict thread matches above, loose matches on Subject: below --
2012-02-05 20:37 Bulk discard doesn't work after add/delete of devices Lutz Euler
2012-02-09 8:42 ` Liu Bo
2012-02-09 15:50 ` Lutz Euler
2012-02-10 1:56 ` Liu Bo
2012-02-12 17:01 ` Lutz Euler
2012-02-13 5:57 ` Liu Bo
2012-02-14 17:32 ` Lutz Euler
2012-02-29 0:17 ` Lutz Euler
2012-04-10 17:34 ` Lutz Euler
2012-11-14 21:10 ` Lutz Euler
2012-11-14 21:17 ` [PATCH] Btrfs: really fix trim 0 bytes after a device delete Lutz Euler
2015-01-03 15:30 ` [PATCH V2] " Lutz Euler
2015-01-03 16:16 ` fstrim not working on one of three BTRFS filesystems Lutz Euler
2015-05-19 15:18 ` Rich Freeman
2015-01-05 16:59 ` [PATCH V2] Btrfs: really fix trim 0 bytes after a device delete Martin Steigerwald
2015-01-05 19:29 ` Lutz Euler
2015-05-01 10:43 ` Martin Steigerwald
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