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authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-04-12 15:04:51 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-04-12 15:21:15 -0400
commitb570a975ed276335dc7d148658c1f880ac0a507f (patch)
tree14fb6a82253c34fc65ed558bc97c0adbab21caf9
parentb9536ad52152ff440231dcc2dd9cfa644f5413c9 (diff)
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 <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
-rw-r--r--fs/nfs/nfs4proc.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 83197fb60d5..af05df3c7c7 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;