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NFSv4.1/pnfs: Mark the layout stateid invalid when all segments are removed

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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 the layout stateid is no longer
valid once the client no longer holds any layout segments.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: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2016-06-17 16:48:26 -04:00 committed by Anna Schumaker
parent cbebaf897e
commit 2d148c7e84
1 changed files with 3 additions and 1 deletions
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4
fs/nfs/pnfs.c
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@ -361,8 +361,10 @@ pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo,
list_del_init(&lseg->pls_list); list_del_init(&lseg->pls_list);
/* Matched by pnfs_get_layout_hdr in pnfs_layout_insert_lseg */ /* Matched by pnfs_get_layout_hdr in pnfs_layout_insert_lseg */
atomic_dec(&lo->plh_refcount); 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); clear_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
}
rpc_wake_up(&NFS_SERVER(inode)->roc_rpcwaitq); rpc_wake_up(&NFS_SERVER(inode)->roc_rpcwaitq);
} }