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Recover from stateid-type error on SETATTR

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Client can receives stateid-type error (eg., BAD_STATEID) on SETATTR when
delegation stateid was used. When no open state exists, in case of application
calling truncate() on the file, client has no state to recover and fails with
EIO.

Instead, upon such error, return the bad delegation and then resend the
SETATTR with a zero stateid.

Signed-off: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Olga Kornievskaia 2015-06-12 16:53:30 -04:00 committed by Trond Myklebust
parent df05a49f72
commit ae2ffef383
1 changed files with 7 additions and 1 deletions
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8
fs/nfs/nfs4proc.c
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@ -370,8 +370,14 @@ int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
if (state == NULL)
if (state == NULL) {
if (inode && nfs4_have_delegation(inode,
FMODE_READ)) {
nfs4_inode_return_delegation(inode);
exception->retry = 1;
}
break;
}
ret = nfs4_schedule_stateid_recovery(server, state);
if (ret < 0)
break;