From b570a975ed276335dc7d148658c1f880ac0a507f Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 12 Apr 2013 15:04:51 -0400 Subject: [PATCH] NFSv4: Fix handling of revoked delegations by setattr 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 Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 83197fb60d5f..af05df3c7c79 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -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; -- 2.30.2