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From: Ryusuke Konishi <ryusuke-sG5X7nlA6pw@public.gmane.org>
To: dexen.devries-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: linux-nilfs <linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH 1/8] lscp: support opening mounted filesystem by directory pathname
Date: Fri, 4 Mar 2011 20:21:30 +0900	[thread overview]
Message-ID: <AANLkTimo14Brge+eswBjTgWs3iGKXHRDgpTSGjivmBsz@mail.gmail.com> (raw)
In-Reply-To: <20110304.192609.247659638.ryusuke-sG5X7nlA6pw@public.gmane.org>

2011/3/4 Ryusuke Konishi <ryusuke-sG5X7nlA6pw@public.gmane.org>:
> In the new directory semantics, we needs to decide if a given
> directory argument belongs to a mount point in the mtab entries.
>
> This matching check needs to know whether the given directory crosses
> over a filesystem boundary starting from each mount point.  And, this
> needs testing if each intermediate directory is a mount point or not.
>
> "mountpoint" command judges this by comparing device ids and inode
> numbers for each directory with its parent.

BTW, we can test if a given nilfs2 directory is a mount point or not
with its inode number.  The nilfs2 mount point always has
inode number 2 (=NILFS_ROOT_INO) and no other directories
have this inode number.

Thanks,
Ryusuke Konishi
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      parent reply	other threads:[~2011-03-04 11:21 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-02 10:13 [PATCH] lscp: support opening mounted filesystem by directory pathname dexen deVries
     [not found] ` <201103021113.32637.dexen.devries-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-02 11:23   ` Ryusuke Konishi
     [not found]     ` <20110302.202345.74569955.ryusuke-sG5X7nlA6pw@public.gmane.org>
2011-03-02 12:43       ` dexen deVries
     [not found]         ` <201103021343.54036.dexen.devries-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-02 14:21           ` Ryusuke Konishi
     [not found]             ` <20110302.232110.169818198.ryusuke-sG5X7nlA6pw@public.gmane.org>
2011-03-03 12:47               ` [PATCH 1/8] " dexen deVries
     [not found]                 ` <1299156472-4707-1-git-send-email-dexen.devries-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-03 12:47                   ` [PATCH 2/8] chcp: " dexen deVries
2011-03-03 12:47                   ` [PATCH 3/8] dumpseg: " dexen deVries
2011-03-03 12:47                   ` [PATCH 4/8] lssu: " dexen deVries
2011-03-03 12:47                   ` [PATCH 5/8] mkcp: " dexen deVries
2011-03-03 12:47                   ` [PATCH 6/8] rmcp: " dexen deVries
2011-03-03 12:47                   ` [PATCH 7/8] bin/*: update inline help to indicate possibility of accessing filesystem by mountpoint pathname dexen deVries
2011-03-03 12:47                   ` [PATCH 8/8] update manpages to indicate open-by-mountpoint dexen deVries
2011-03-03 16:15                   ` [PATCH 1/8] lscp: support opening mounted filesystem by directory pathname Ryusuke Konishi
     [not found]                     ` <20110304.011511.83301246.ryusuke-sG5X7nlA6pw@public.gmane.org>
2011-03-03 16:23                       ` dexen deVries
     [not found]                         ` <201103031723.22583.dexen.devries-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-03 17:16                           ` Ryusuke Konishi
     [not found]                             ` <20110304.021603.234305303.ryusuke-sG5X7nlA6pw@public.gmane.org>
2011-03-03 18:31                               ` dexen deVries
     [not found]                                 ` <201103031931.32310.dexen.devries-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-04 10:26                                   ` Ryusuke Konishi
     [not found]                                     ` <20110304.192609.247659638.ryusuke-sG5X7nlA6pw@public.gmane.org>
2011-03-04 11:21                                       ` Ryusuke Konishi [this message]

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