[bug #14921] find -fstype broken when bind-mounts are used

[Andreas Metzler]

Follow-up Comment #6, bug #14921 (project findutils):

Hello,
Sorry for being so late in response. This is not fixed, just broken in a
different way.

Jay wrote:
> OK, diagnosed and fixed.

> find was taking the LAST matching entry from /etc/mtab rather
> than the FIRST (this was also a memory leak).
[...]
> I've now fixed this in 4.2.x (and will soon propagate the fix
> to 4.3.x). We take the first match.

I bindmount /tmp to /sid/tmp; i.e. the contents of /tmp/ are afterwards also
visible in /sid/tmp

With 4.2.26 this results in /tmp/a (and any other file on the same filesystem
as /tmp/) and /sid/tmp/a to be both considered type "none".

OTOH with 4.2.27 this results in /tmp/a (and any other file on the same
filesystem as /tmp/) and /sid/tmp/a to be both considered type "ext3".

What I'd actually like to accomplish is:
/tmp/a  type ext3
/sid/tmp/a type none

I do not know whether this doable, stat does not offer the necessary
information, e.g. df(1) from coreutils uses a loop:
/* Figure out which device file or directory POINT is mounted on
   and show its disk usage.
   STATP must be the result of `stat (POINT, STATP)'.  */
static void
show_point (const char *point, const struct stat *statp)

cu andreas

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