Eric Van Hensbergen 0af8887ebf 9p: fix a race condition bug in umount which caused a segfault
umounting partitions after heavy activity would sometimes trigger a
segmentation violation.  This fix appears to remove that problem.
Fix originally provided by Latchesar Ionkov.

Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2007-07-14 15:14:19 -05:00
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