From: Duncan <1i5t5.duncan@cox.net>
To: linux-btrfs@vger.kernel.org
Subject: Re: fstrim not working on one of three BTRFS filesystems
Date: Mon, 29 Dec 2014 02:08:21 +0000 (UTC) [thread overview]
Message-ID: <pan$e8b97$69faf00b$ca66e14d$c2effd06@cox.net> (raw)
In-Reply-To: 3979684.puYLD8DjTq@merkaba
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 - List replies preferred. No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master." Richard Stallman
next prev parent reply other threads:[~2014-12-29 2:08 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 [this message]
2014-12-29 9:06 ` Martin Steigerwald
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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