NFSv4: Don't discard segments marked for return in _pnfs_return_layout()
If the pNFS layout segment is marked with the NFS_LSEG_LAYOUTRETURN flag, then the assumption is that it has some reporting requirement to perform through a layoutreturn (e.g. flexfiles layout stats or error information). Fixes: 6d597e17 ("pnfs: only tear down lsegs that precede seqid in LAYOUTRETURN args") Cc: stable@vger.kernel.org Signed-off-by:Trond Myklebust <trond.myklebust@hammerspace.com>
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39fd0186
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