tail --follow with inotify doesn't distinguish hardlinks

[Pádraig Brady]

For the record, I noticed another edge case with tail's
inotify implementation, documented in the attached patch.

Due to not distinguishing hardlinks, followed data for
only one of the hardlinked names is output.

$ echo 1 >file
$ ln file fileln


======== Inotify case ==============
$ tail -F file fileln
==> file <==
1

==> fileln <==
1
2 <-------------------------------- echo 2 > file




======== Non inotify case ==============
$ tail -F ---dis file fileln
==> file <==
1
2

==> fileln <==
1
2
  <-------------------------------- echo 3 > file
==> file <==
3

==> fileln <==
3



cheers,
Pádraig.

tail-inotify-links.patch
Description: Text Data