Commit 5fcce743 authored by Aneesh Kumar's avatar Aneesh Kumar Committed by Linus Torvalds
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[PATCH] fix lockdep-design.txt

I was looking at lockdep-desing.txt and i guess i am confused with the
changes with respect to fd7bcea3

. It
says

+   '.'  acquired while irqs enabled
+   '+'  acquired in irq context
+   '-'  acquired in process context with irqs disabled
+   '?'  read-acquired both with irqs enabled and in irq context
+

But the get_usage_chars() function does this for '-'
 if (class->usage_mask & LOCKF_ENABLED_HARDIRQS)
                        *c1 = '-';

So i guess what would be correct would be
'.'  acquired while irqs disabled
'+'  acquired in irq context
'-'  acquired with irqs enabled
'?' read acquired in irq context with irqs enabled.
Acked-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 3dc3099a
......@@ -50,10 +50,10 @@ The bit position indicates hardirq, softirq, hardirq-read,
softirq-read respectively, and the character displayed in each
indicates:
'.' acquired while irqs enabled
'.' acquired while irqs disabled
'+' acquired in irq context
'-' acquired in process context with irqs disabled
'?' read-acquired both with irqs enabled and in irq context
'-' acquired with irqs enabled
'?' read acquired in irq context with irqs enabled.
Unused mutexes cannot be part of the cause of an error.
......
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