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Commit 2d148c7e authored by Trond Myklebust's avatar Trond Myklebust Committed by Anna Schumaker
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NFSv4.1/pnfs: Mark the layout stateid invalid when all segments are removed 



According to RFC5661, section 12.5.3. the layout stateid is no longer
valid once the client no longer holds any layout segments. Ensure that
we mark it invalid.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
parent cbebaf89

fs/nfs/pnfs.c

+3 −1
Original line number Diff line number Diff line
@@ -361,8 +361,10 @@ pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo, 
	list_del_init(&lseg->pls_list);

	/* Matched by pnfs_get_layout_hdr in pnfs_layout_insert_lseg */

	atomic_dec(&lo->plh_refcount);

	if (list_empty(&lo->plh_segs))

	if (list_empty(&lo->plh_segs)) {

		set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);

		clear_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);

	}

	rpc_wake_up(&NFS_SERVER(inode)->roc_rpcwaitq);

}