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NFSv4: Don't test open_stateid unless it is set 

We need to test the NFS_OPEN_STATE flag for whether or not the
open_stateid is valid.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Tested-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2016-09-22 13:39:16 -04:00 committed by Anna Schumaker
parent 272289a3df
commit b134fc4a53
1 changed files with 5 additions and 0 deletions
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5
fs/nfs/nfs4proc.c
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@ -2587,6 +2587,11 @@ static int nfs41_check_open_stateid(struct nfs4_state *state)
struct rpc_cred *cred = state->owner->so_cred;
int status;
if (test_bit(NFS_OPEN_STATE, &state->flags) == 0) {
if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)
return NFS_OK;
return -NFS4ERR_BAD_STATEID;
}
/* If a state reset has been done, test_stateid is unneeded */
if ((test_bit(NFS_O_RDONLY_STATE, &state->flags) == 0) &&
(test_bit(NFS_O_WRONLY_STATE, &state->flags) == 0) &&