DragonFly bugs List (threaded) for 2009-11
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[issue1537] null mount does not accept -o update
Stathis Kamperis <ekamperi@gmail.com> added the comment:
Salute.
I have a patch here:
http://leaf.dragonflybsd.org/~beket/updnull.diff
I have tested it extensively and it works. Stuff I tried:
1. Switching between ro/rw in a local null mount.
And verified read-onlyness by trying to touch a file.
2. Switching between ro/rw in stacks of local null mounts.
And verified read-onlyness by trying to touch a file.
3. Switching between ro/rw in a NFS exported null mount.
Specifically, /pfs/@@-1:00004 was null mounted on /home. And /home was NFS
shared with dfly being the server. NFS client was opensolaris build 126. I was
able to write from osol when /home was exported as read-write, and failed to do
so when it was exported as read-only. Client correctly reported that fs was
read-only. And so did mount(8) in the server side.
I can provide copy/pastes from sessions, upon request. But better, fetch the
patch and try it yourself :)
This http://leaf.dragonflybsd.org/~beket/mountnull.png shows some preliminary
tests I did (they do not cover switching back to ro from rw, or 3.)
Best regards,
Stathis Kamperis
----------
assignedto: -> Beket
nosy: +Beket
priority: -> feature
status: chatting -> testing
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DragonFly issue tracker <bugs@lists.dragonflybsd.org>
<http://bugs.dragonflybsd.org/issue1537>
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