tree 8445f352804d54453bc9ca1158f7aa7507363fa2
parent 5c6e5b60aae4347223f176966455010a5715b863
author Trond Myklebust <trond.myklebust@primarydata.com> 1467136449 -0400
committer Trond Myklebust <trond.myklebust@primarydata.com> 1467314997 -0400

NFS/pnfs: Do not clobber existing pgio_done_cb in nfs4_proc_read_setup

If a pNFS client sets hdr->pgio_done_cb, then we should not overwrite that
in nfs4_proc_read_setup()

Fixes: 75bf47ebf6b5 ("pNFS/flexfile: Fix erroneous fall back to...")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>