1 files changed, 11 insertions, 3 deletions

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 9793ae0bcaa2..d4890b6dc22d 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1112,6 +1112,12 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile)
         return rc;
 }
 
+static __u32
+hash_lockowner(fl_owner_t owner)
+{
+        return cifs_lock_secret ^ hash32_ptr((const void *)owner);
+}
+
 struct lock_to_push {
         struct list_head llist;
         __u64 offset;
@@ -1178,7 +1184,7 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile)
                 else
                         type = CIFS_WRLCK;
                 lck = list_entry(el, struct lock_to_push, llist);
-                lck->pid = flock->fl_pid;
+                lck->pid = hash_lockowner(flock->fl_owner);
                 lck->netfid = cfile->fid.netfid;
                 lck->length = length;
                 lck->type = type;
@@ -1305,7 +1311,8 @@ cifs_getlk(struct file *file, struct file_lock *flock, __u32 type,
                         posix_lock_type = CIFS_RDLCK;
                 else
                         posix_lock_type = CIFS_WRLCK;
-                rc = CIFSSMBPosixLock(xid, tcon, netfid, current->tgid,
+                rc = CIFSSMBPosixLock(xid, tcon, netfid,
+                                      hash_lockowner(flock->fl_owner),
                                       flock->fl_start, length, flock,
                                       posix_lock_type, wait_flag);
                 return rc;
@@ -1505,7 +1512,8 @@ cifs_setlk(struct file *file, struct file_lock *flock, __u32 type,
                         posix_lock_type = CIFS_UNLCK;
 
                 rc = CIFSSMBPosixLock(xid, tcon, cfile->fid.netfid,
-                                      current->tgid, flock->fl_start, length,
+                                      hash_lockowner(flock->fl_owner),
+                                      flock->fl_start, length,
                                       NULL, posix_lock_type, wait_flag);
                 goto out;
         }