[PATCH 5.10 123/152] pNFS: Mark layout for return if return-on-close was not sent

[Greg Kroah-Hartman]

From: Trond Myklebust <trond.mykleb...@hammerspace.com>

commit 67bbceedc9bb8ad48993a8bd6486054756d711f4 upstream.

If the layout return-on-close failed because the layoutreturn was never
sent, then we should mark the layout for return again.

Fixes: 9c47b18cf722 ("pNFS: Ensure we do clear the return-on-close layout 
stateid on fatal errors")
Signed-off-by: Trond Myklebust <trond.mykleb...@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/nfs/pnfs.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1558,12 +1558,18 @@ void pnfs_roc_release(struct nfs4_layout
                int ret)
 {
        struct pnfs_layout_hdr *lo = args->layout;
+       struct inode *inode = args->inode;
        const nfs4_stateid *arg_stateid = NULL;
        const nfs4_stateid *res_stateid = NULL;
        struct nfs4_xdr_opaque_data *ld_private = args->ld_private;
 
        switch (ret) {
        case -NFS4ERR_NOMATCHING_LAYOUT:
+               spin_lock(&inode->i_lock);
+               if (pnfs_layout_is_valid(lo) &&
+                   nfs4_stateid_match_other(&args->stateid, &lo->plh_stateid))
+                       pnfs_set_plh_return_info(lo, args->range.iomode, 0);
+               spin_unlock(&inode->i_lock);
                break;
        case 0:
                if (res->lrs_present)