It supports that a device can be mounted multiple times.
Actually it is a general feature of linux filesystems.
Thanks,
Joseph
On 16/11/19 16:32, Gechangwei wrote:
On 2016年08月31日 18:59, Gechangwei wrote:
Hi,
I am asking for your help on OCFS2 again.
I can’t figure out a segment of code.
In the function dlm_register_domain which is called during mount
procedure, below code stays:
dlm = __dlm_lookup_domain(domain);
if (dlm) {
if (dlm->dlm_state != DLM_CTXT_JOINED) {
spin_unlock(&dlm_domain_lock);
mlog(ML_ERROR, "fence: dlm(%s) is not joined yet.\n", dlm->name);
mlog(0, "This ctxt is not joined yet!\n");
wait_event_interruptible(dlm_domain_events,
dlm_wait_on_domain_helper(
domain));
goto retry;
}
I can see that it wants to look up an existed DLM context object
which matches file system’s UUID.
According to my comprehension, DLM context object must be detached
from the DLM domain’s list and released when dismount.
So it’s weird that such a DLM context object can be found at the
procedure of MOUNT.
Could you please provide a clue for me, if convenient?
how are u
Many thanks!
BR.
Changwei.
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