CIFS: Implement caching mechanism for posix brlocks

to handle all lock requests on the client in an exclusive oplock case.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 4435b11c41b9..6a45a1769388 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -2393,9 +2393,9 @@ CIFSSMBLock(const int xid, struct cifs_tcon *tcon,
 
 int
 CIFSSMBPosixLock(const int xid, struct cifs_tcon *tcon,
-                const __u16 smb_file_id, const int get_flag, const __u64 len,
-                struct file_lock *pLockData, const __u16 lock_type,
-                const bool waitFlag)
+                const __u16 smb_file_id, const __u32 netpid, const int get_flag,
+                const __u64 len, struct file_lock *pLockData,
+                const __u16 lock_type, const bool waitFlag)
 {
         struct smb_com_transaction2_sfi_req *pSMB  = NULL;
         struct smb_com_transaction2_sfi_rsp *pSMBr = NULL;
@@ -2453,7 +2453,7 @@ CIFSSMBPosixLock(const int xid, struct cifs_tcon *tcon,
         } else
                 pSMB->Timeout = 0;
 
-        parm_data->pid = cpu_to_le32(current->tgid);
+        parm_data->pid = cpu_to_le32(netpid);
         parm_data->start = cpu_to_le64(pLockData->fl_start);
         parm_data->length = cpu_to_le64(len);  /* normalize negative numbers */