target/linux/generic/pending-5.15/540-ksmbd-only-v2-leases-handle-the-directory.patch

   1 From cb1d41b99e4afa062f904339666fae2578559718 Mon Sep 17 00:00:00 2001
   2 From: Namjae Jeon <linkinjeon@kernel.org>
   3 Date: Mon, 15 Jan 2024 10:24:54 +0900
   4 Subject: [PATCH] ksmbd: only v2 leases handle the directory
   5
   6 When smb2 leases is disable, ksmbd can send oplock break notification
   7 and cause wait oplock break ack timeout. It may appear like hang when
   8 accessing a directory. This patch make only v2 leases handle the
   9 directory.
  10
  11 Cc: stable@vger.kernel.org
  12 Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
  13 Signed-off-by: Steve French <stfrench@microsoft.com>
  14 ---
  15  fs/ksmbd/oplock.c | 6 ++++++
  16  1 file changed, 6 insertions(+)
  17
  18 --- a/fs/ksmbd/oplock.c
  19 +++ b/fs/ksmbd/oplock.c
  20 @@ -1191,6 +1191,12 @@ int smb_grant_oplock(struct ksmbd_work *
  21         bool prev_op_has_lease;
  22         __le32 prev_op_state = 0;
  23
  24 +       /* Only v2 leases handle the directory */
  25 +       if (S_ISDIR(file_inode(fp->filp)->i_mode)) {
  26 +               if (!lctx || lctx->version != 2)
  27 +                       return 0;
  28 +       }
  29 +
  30         opinfo = alloc_opinfo(work, pid, tid);
  31         if (!opinfo)
  32                 return -ENOMEM;