From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chao Yu Subject: Re: fstrim fails on F2FS device Date: Sat, 28 Jun 2014 16:36:34 +0800 Message-ID: <004e01cf92ac$2a76e960$7f64bc20$@samsung.com> References: <53AE641A.8050308@westnet.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1X0o8S-0000ws-0V for linux-f2fs-devel@lists.sourceforge.net; Sat, 28 Jun 2014 08:37:24 +0000 Received: from mailout2.samsung.com ([203.254.224.25]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-MD5:128) (Exim 4.76) id 1X0o8P-0002Ia-Ui for linux-f2fs-devel@lists.sourceforge.net; Sat, 28 Jun 2014 08:37:23 +0000 Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N7V00F22EM2U820@mailout2.samsung.com> for linux-f2fs-devel@lists.sourceforge.net; Sat, 28 Jun 2014 17:37:14 +0900 (KST) In-reply-to: <53AE641A.8050308@westnet.com.au> Content-language: zh-cn List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: 'Brian Chadwick' Cc: linux-f2fs-devel@lists.sourceforge.net Hi Brian, > -----Original Message----- > From: Brian Chadwick [mailto:brianchad@westnet.com.au] > Sent: Saturday, June 28, 2014 2:44 PM > To: linux-f2fs-devel@lists.sourceforge.net > Subject: [f2fs-dev] fstrim fails on F2FS device > > Hi there > > running fstrim on a F2FS partition gives the following output: > > fstrim: /home: discard operation not supported. > > kernel 3.16.0-rc2 > > Is this normal? Now f2fs has not yet supported batch mode discard through ioctl as the way fstrim used. Still you could use real-time mode discard by adding a '-o discard' option when mount, meanwhile /sys/fs/f2fs//max_small_discards could be used for controlling the real-time mode. Thanks Yu > > Cheers > > Brian > > ------------------------------------------------------------------------------ > Open source business process management suite built on Java and Eclipse > Turn processes into business applications with Bonita BPM Community Edition > Quickly connect people, data, and systems into organized workflows > Winner of BOSSIE, CODIE, OW2 and Gartner awards > http://p.sf.net/sfu/Bonitasoft > _______________________________________________ > Linux-f2fs-devel mailing list > Linux-f2fs-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel ------------------------------------------------------------------------------ Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner awards http://p.sf.net/sfu/Bonitasoft