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lockd: fix server crash on reboot of client holding lock
commit 6e7f90d upstream. I thought I was iterating over the array when actually the iteration is over the values contained in the array? Ugh, keep it simple. Symptoms were a null deference in vfs_lock_file() when an NFSv3 client that previously held a lock came back up and sent a notify. Reported-by: Jonathan Woithe <jwoithe@just42.net> Fixes: 7f024fc ("Keep read and write fds with each nlm_file") Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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