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From: Ulli Horlacher <framstag@rus.uni-stuttgart.de>
To: linux-btrfs@vger.kernel.org
Subject: Re: find snapshot parent?
Date: Sun, 7 Jul 2019 01:24:44 +0200	[thread overview]
Message-ID: <20190706232444.GA22299@tik.uni-stuttgart.de> (raw)
In-Reply-To: <20190706155353.GA13656@tik.uni-stuttgart.de>

I have now implemented "btrfs_subvolume_list", example:

root@xerus:~# df3 -T
Filesystem     Type    Mbytes      Used Available Use% Mounted on
/dev/sda1      ext4    20,029     4,482    14,507  24% /
/dev/sdd4     btrfs    53,247       101    51,052   1% /test

root@xerus:~# btrfs_subvolume_list
rw /test
ro /test/.snapshot/2019-07-06_2236.test <- /test
ro /test/snapshot_1 <- /test
ro /test/ss1 <- /test
ro /test/ss3 <- -
rw /test/tmp
ro /test/tmp/xx/ss1 <- /test/tmp
ro /test/tmp/xx/ss2 <- /test/tmp
ro /test/tmp/xx/ss3 <- /test/ss3
rw /test/tmp/zz2 <- /test/tux/zz
rw /test/tux/test
ro /test/tux/test/.snapshot/2017-12-02_1341.test <- /test/tux/test
rw /test/tux/test2 <- /test/tux/test
rw /test/tux/test2/test <- /test/tux/test
rw /test/tux/zz

<- means: is snapshot of ...

Note: I have deleted the subvolume parent of /test/ss3

Sourcecode is available under:

https://fex.rus.uni-stuttgart.de/fas/framstag@rus.uni-stuttgart.de/linuxtools/anonymous@fex.rus.uni-stuttgart.de/k5JuaCkGRqGOYeFUHuB47S35rhs3vBZo

-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum TIK         
Universitaet Stuttgart         E-Mail: horlacher@tik.uni-stuttgart.de
Allmandring 30a                Tel:    ++49-711-68565868
70569 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
REF:<20190706155353.GA13656@tik.uni-stuttgart.de>

      parent reply	other threads:[~2019-07-06 23:24 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-06 15:53 find snapshot parent? Ulli Horlacher
2019-07-06 16:57 ` Nikolay Borisov
2019-07-06 20:43   ` Ulli Horlacher
2019-07-07  5:27     ` Andrei Borzenkov
2019-07-07  6:43     ` Nikolay Borisov
2019-07-07  7:37       ` Andrei Borzenkov
2019-07-07  9:12         ` Nikolay Borisov
2019-07-07 22:18           ` Ulli Horlacher
2019-07-08  4:05             ` Andrei Borzenkov
2019-07-06 23:24 ` Ulli Horlacher [this message]

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