irrelevant locking

Sun Jan 17 08:30:13 UTC 2016

On Sun, Jan 17, 2016 at 09:24:40AM +0100, Mateusz Guzik wrote:
> As a side note I think current code is buggy. VOP_CLOSE is being called
> with only shared lock held even for filesystems without
> MNTK_EXTENDED_SHARED, I don't know how harmful this really is.

Generally LK_EXCLUSIVE for VOP_CLOSE() is only needed when closing for
write.  Look at the vn_close() selection of the lock mode as an example.
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