[CHECKER] NFS on JFS doesn't sync all file system operations (NFSon JFS, 2.6.11)

[Junfeng Yang]

Hi,

FiSC found that at link operation and unlink operation on a NFS partion on
top of JFS are not sync'ed.   These warnings show up in JFS but not in
ext2, ext3, so I suspect it's a potential JFS problem.

cat /etc/exports shows:
/mnt/sbd0-export          localhost(rw,sync,no_subtree_check)
/mnt/sbd1-export          localhost(rw,sync,no_subtree_check)

test cases can be found at:

http://fisc.stanford.edu/bug17/crash.c
http://fisc.stanford.edu/bug17/crash-unlink.c

Thanks,
-Junfeng

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