nfs: set correct fl_len in nlmclnt_test()
Felix Blyakher [Tue, 15 Jul 2008 17:40:22 +0000 (12:40 -0500)]
fcntl(F_GETLK) on an nfs client incorrectly returns
the values for the conflicting lock. fl_len value is
always 1.
If the conflicting lock is (0, 4095) the F_GETLK
request for (1024, 10) returns (0, 1), which doesn't
even cover the requested range, and is quite confusing.
The fix is trivial, set fl_end from the fl_end value
recieved from the nfs server.

Signed-off-by: Felix Blyakher <felixb@sgi.com>
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/lockd/clntproc.c

index 5df517b..fd7d466 100644 (file)
@@ -430,7 +430,7 @@ nlmclnt_test(struct nlm_rqst *req, struct file_lock *fl)
                         * Report the conflicting lock back to the application.
                         */
                        fl->fl_start = req->a_res.lock.fl.fl_start;
-                       fl->fl_end = req->a_res.lock.fl.fl_start;
+                       fl->fl_end = req->a_res.lock.fl.fl_end;
                        fl->fl_type = req->a_res.lock.fl.fl_type;
                        fl->fl_pid = 0;
                        break;