[Bugs] [Bug 1468202] inodelk in dht_migrate_file is ineffective for hardlink migration

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1468202



--- Comment #1 from Nithya Balachandran <nbalacha at redhat.com> ---
The inodelk APIs get the lk_owner from the frame->root->lk_owner (not the
flock->l_owner) which is set to the process pid if not explicitly set by the
caller. dht_migrate_file uses syncop_inodelk which does not provide access to
the frame, so the lk_owner is always 0xfdfffff (-3 which is
GF_CLIENT_PID_DEFRAG). As the owner is the same, the inodelk is always granted
for all hardlinks.

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