* Re: Question about reflink feature [not found] <5B582B43.8070207@cn.fujitsu.com> @ 2018-07-25 19:16 ` Darrick J. Wong 2018-07-27 1:34 ` Xiao Yang 0 siblings, 1 reply; 3+ messages in thread From: Darrick J. Wong @ 2018-07-25 19:16 UTC (permalink / raw) To: Xiao Yang; +Cc: xfs [add linux-xfs to cc] On Wed, Jul 25, 2018 at 03:48:19PM +0800, Xiao Yang wrote: > Hi Darrick, > > Sorry to bother you. > > Currently, all reflink tests for XFS in xfstests are skipped even if we > use the lastest kernel and xfsprogs. > It seems that mkfs.xfs doesn't enable reflink by default, do you want to > enable it by default in later > xfsprogs version? It will be enabled by default when we've had a long enough period to test it and make sure it's stable for general use. That may happen some time in early 2019. > Shoud we enable it forcely by "mkfs.xfs -m reflink" in > xfstests if mkfs.xfs supports it? For now, yes. --D > > Thanks, > Xiao Yang > > ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Question about reflink feature 2018-07-25 19:16 ` Question about reflink feature Darrick J. Wong @ 2018-07-27 1:34 ` Xiao Yang 2018-07-27 4:14 ` Eric Sandeen 0 siblings, 1 reply; 3+ messages in thread From: Xiao Yang @ 2018-07-27 1:34 UTC (permalink / raw) To: Darrick J. Wong; +Cc: xfs Hi Darrick, Thanks for your explanation. rmapbt, reflink and dedupe features will be enabled by default together? Thanks Xiao Yang On 2018/07/26 3:16, Darrick J. Wong wrote: > [add linux-xfs to cc] > > On Wed, Jul 25, 2018 at 03:48:19PM +0800, Xiao Yang wrote: >> Hi Darrick, >> >> Sorry to bother you. >> >> Currently, all reflink tests for XFS in xfstests are skipped even if we >> use the lastest kernel and xfsprogs. >> It seems that mkfs.xfs doesn't enable reflink by default, do you want to >> enable it by default in later >> xfsprogs version? > It will be enabled by default when we've had a long enough period to > test it and make sure it's stable for general use. That may happen some > time in early 2019. > >> Shoud we enable it forcely by "mkfs.xfs -m reflink" in >> xfstests if mkfs.xfs supports it? > For now, yes. > > --D > >> Thanks, >> Xiao Yang >> >> > > ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Question about reflink feature 2018-07-27 1:34 ` Xiao Yang @ 2018-07-27 4:14 ` Eric Sandeen 0 siblings, 0 replies; 3+ messages in thread From: Eric Sandeen @ 2018-07-27 4:14 UTC (permalink / raw) To: Xiao Yang, Darrick J. Wong; +Cc: xfs On 7/26/18 6:34 PM, Xiao Yang wrote: > Hi Darrick, > > Thanks for your explanation. > > rmapbt, reflink and dedupe features will be enabled by default together? dedup is not a "feature" of xfs by itself; rather there are userspace applications which can use clone_file_range (related to reflink) to do out of band deduplication from userspace. I believe that rmapbt has a fair bit of performance overhead, and may not get enabled by default. Not certain about this though. -Eric > Thanks > Xiao Yang > On 2018/07/26 3:16, Darrick J. Wong wrote: >> [add linux-xfs to cc] >> >> On Wed, Jul 25, 2018 at 03:48:19PM +0800, Xiao Yang wrote: >>> Hi Darrick, >>> >>> Sorry to bother you. >>> >>> Currently, all reflink tests for XFS in xfstests are skipped even if we >>> use the lastest kernel and xfsprogs. >>> It seems that mkfs.xfs doesn't enable reflink by default, do you want to >>> enable it by default in later >>> xfsprogs version? >> It will be enabled by default when we've had a long enough period to >> test it and make sure it's stable for general use. That may happen some >> time in early 2019. >> >>> Shoud we enable it forcely by "mkfs.xfs -m reflink" in >>> xfstests if mkfs.xfs supports it? >> For now, yes. >> >> --D >> >>> Thanks, >>> Xiao Yang >>> >>> >> >> > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-xfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > ^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-07-25 19:16 ` Question about reflink feature Darrick J. Wong
2018-07-27 1:34 ` Xiao Yang
2018-07-27 4:14 ` Eric Sandeen
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