diff options
| author | Aneesh Kumar <aneesh.kumar@gmail.com> | 2006-10-11 10:22:07 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-11 20:14:24 +0200 |
| commit | 5fcce7432a731e67f1cd3ef1e71dca9ea84dedb1 (patch) | |
| tree | 899fb8d0906ea09c142ac650db8672eaf7e38025 /Documentation/lockdep-design.txt | |
| parent | [PATCH] lockdep: use BUILD_BUG_ON (diff) | |
| download | linux-5fcce7432a731e67f1cd3ef1e71dca9ea84dedb1.tar.xz linux-5fcce7432a731e67f1cd3ef1e71dca9ea84dedb1.zip | |
[PATCH] fix lockdep-design.txt
I was looking at lockdep-desing.txt and i guess i am confused with the
changes with respect to fd7bcea35e7efb108c34ee2b3840942a3749cadb. 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: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/lockdep-design.txt')
| -rw-r--r-- | Documentation/lockdep-design.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/lockdep-design.txt b/Documentation/lockdep-design.txt index dab123db5a4f..488773018152 100644 --- a/Documentation/lockdep-design.txt +++ b/Documentation/lockdep-design.txt @@ -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. |