[PATCH 3.2 031/126] NFSv4: Open state recovery must account for file permission changes

Ben Hutchings
2017-02-15T22:53:47Z

From: Trond Myklebust <trond.myklebust@primarydata.com>

commit 304020fe48c6c7fff8b5a38f382b54404f0f79d3 upstream.

If the file permissions change on the server, then we may not be able to
recover open state. If so, we need to ensure that we mark the file
descriptor appropriately.

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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/nfs/nfs4state.c | 3 +++
1 file changed, 3 insertions(+)

--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1203,6 +1203,9 @@ restart:
__func__, status);
case -ENOENT:
case -ENOMEM:
+ case -EACCES:
+ case -EROFS:
+ case -EIO:
case -ESTALE:
/*
* Open state on this file cannot be recovered