From: Grant Grundler local_t is a variant of atomic_t and has related ops to match. Add reference for local_t documentation to atomic_ops.txt. Signed-off-by: Grant Grundler Signed-off-by: Andrew Morton --- Documentation/atomic_ops.txt | 4 ++++ 1 files changed, 4 insertions(+) diff -puN Documentation/atomic_ops.txt~atomic_opstxt-mention-local_t Documentation/atomic_ops.txt --- a/Documentation/atomic_ops.txt~atomic_opstxt-mention-local_t +++ a/Documentation/atomic_ops.txt @@ -14,6 +14,10 @@ suffice: typedef struct { volatile int counter; } atomic_t; +local_t is very similar to atomic_t. If the counter is per CPU and only +updated by one CPU, local_t is probably more appropriate. Please see +Documentation/local_ops.txt for the semantics of local_t. + The first operations to implement for atomic_t's are the initializers and plain reads. _