Lan,
Thank you for your reply. Yes, I'm using GNU/Linux. I lookup the
findmnt program your mentioned and find that doesn't meet the need.
For example, if /data is mounted on /dev/sda3 and the given dir is /data.
It's ok to use findmnt to get /dev/sda3. But if the given dir is
/data/test1,
the findmnt returns nothing.
在 2018年1月23日星期二 UTC+8下午10:39:58，Ian Lance Taylor写道：
>
> On Mon, Jan 22, 2018 at 10:11 PM, Matrix Neo <lanxis...@gmail.com
> <javascript:>> wrote:
> >
> > I want to get the mount point or device name (like /dev/sda1) by
> the
> > directory name. I try my best only to find syscall.Stat_t struct but
> there
> > is no field to
> > point the information i need. So is there any way to implement this ?
>
> You neglected to say what kind of system you are running on. If you
> are using GNU/Linux, then as far as I know this information is not
> available using `stat`. You need to run the `findmnt` program or look
> in `/proc/self/mountinfo`.
>
> Ian
>
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