[patch] little fix for the new recorsive semaphores

Andrea Arcangeli (andrea@e-mind.com)
Mon, 18 Jan 1999 23:59:06 +0100 (CET)

It will make no difference because the kstack should be always 4byte
aligned but it looks more clean to me ;).

Index: linux/include/asm/semaphore.h
===================================================================
RCS file: /var/cvs/linux/include/asm-i386/semaphore.h,v
retrieving revision 1.1.2.2
diff -u -r1.1.2.2 semaphore.h
--- semaphore.h 1999/01/18 13:56:40 1.1.2.2
+++ linux/include/asm-i386/semaphore.h 1999/01/18 22:52:34
@@ -62,7 +62,7 @@
* operation into the slow path.
*/
#define semaphore_owner(sem) \
- ((struct task_struct *)((2*PAGE_MASK) & (sem)->owner))
+ ((struct task_struct *)(((PAGE_SIZE<<1)-1) & (sem)->owner))

#define MUTEX ((struct semaphore) { ATOMIC_INIT(1), 0, 0, 0, NULL })
#define MUTEX_LOCKED ((struct semaphore) { ATOMIC_INIT(0), 0, 1, 0, NULL })

Andrea Arcangeli

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