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NFSv4: Fix handling of revoked delegations by setattr

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Currently, _nfs4_do_setattr() will use the delegation stateid if no
writeable open file stateid is available.
If the server revokes that delegation stateid, then the call to
nfs4_handle_exception() will fail to handle the error due to the
lack of a struct nfs4_state, and will just convert the error into
an EIO.

This patch just removes the requirement that we must have a
struct nfs4_state in order to invalidate the delegation and
retry.

Reported-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2013-04-12 15:04:51 -04:00
parent b9536ad521
commit b570a975ed
1 changed files with 5 additions and 1 deletions
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6
fs/nfs/nfs4proc.c
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@ -304,9 +304,13 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
if (inode != NULL && nfs4_have_delegation(inode, FMODE_READ)) {
nfs_remove_bad_delegation(inode);
exception->retry = 1;
break;
}
if (state == NULL)
break;
nfs_remove_bad_delegation(state->inode);
ret = nfs4_schedule_stateid_recovery(server, state);
if (ret < 0)
break;