[CIFS] fix saving of resume key before CIFSFindNext

We recently fixed the cifs readdir code so that it saves the resume key
before calling CIFSFindNext. Unfortunately, this assumes that we have
just done a CIFSFindFirst (or FindNext) and have resume info to save.
This isn't necessarily the case. Fix the code to save resume info if we
had to reinitiate the search, and after a FindNext.

This fixes connectathon basic test6 against NetApp filers.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
CC: Stable <stable@kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 765adf12d54f..58d57299f2a0 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -762,14 +762,15 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
                                  rc));
                         return rc;
                 }
+                cifs_save_resume_key(cifsFile->srch_inf.last_entry, cifsFile);
         }
 
         while ((index_to_find >= cifsFile->srch_inf.index_of_last_entry) &&
               (rc == 0) && !cifsFile->srch_inf.endOfSearch) {
                 cFYI(1, ("calling findnext2"));
-                cifs_save_resume_key(cifsFile->srch_inf.last_entry, cifsFile);
                 rc = CIFSFindNext(xid, pTcon, cifsFile->netfid,
                                   &cifsFile->srch_inf);
+                cifs_save_resume_key(cifsFile->srch_inf.last_entry, cifsFile);
                 if (rc)
                         return -ENOENT;
         }