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NFSv4: handle ERR_GRACE on delegation recalls

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[ Upstream commit be390f95242785adbf37d7b8a5101dd2f2ba891b ]

RFC7530 states that clients should be prepared for the return of
NFS4ERR_GRACE errors for non-reclaim lock and I/O requests.

Signed-off-by: Olga Kornievskaia <okorniev@redhat.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Olga Kornievskaia
2025-08-11 14:18:48 -04:00
committed by Greg Kroah-Hartman
parent 1b65fb8723
commit 4e2f5f7e07
1 changed files with 2 additions and 2 deletions
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4
fs/nfs/nfs4proc.c
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@@ -7658,10 +7658,10 @@ int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state,
return err;
do {
err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
if (err != -NFS4ERR_DELAY)
if (err != -NFS4ERR_DELAY && err != -NFS4ERR_GRACE)
break;
ssleep(1);
} while (err == -NFS4ERR_DELAY);
} while (err == -NFS4ERR_DELAY || err == -NFSERR_GRACE);
return nfs4_handle_delegation_recall_error(server, state, stateid, fl, err);
}