NFS: Reduce lock contention in nfs_try_to_update_request()

Micro-optimisation to move the lockless check into the for(;;) loop.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2017-07-17 09:37:12 -04:00
commit 1403390d83