Hi,
If we share a files struct we dont share the locks.
Why isnt the patch below sufficient for testing the owner?
Cheers,
Anton
--- linux_sparc32/fs/locks.c Fri Apr 21 17:45:17 2000
+++ linux/fs/locks.c Tue May 30 10:08:33 2000
@@ -171,14 +171,11 @@
/*
* Check whether two locks have the same owner
- * N.B. Do we need the test on PID as well as owner?
- * (Clone tasks should be considered as one "owner".)
*/
static inline int
locks_same_owner(struct file_lock *fl1, struct file_lock *fl2)
{
- return (fl1->fl_owner == fl2->fl_owner) &&
- (fl1->fl_pid == fl2->fl_pid);
+ return (fl1->fl_owner == fl2->fl_owner);
}
/* Insert waiter into blocker's block list.
-
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