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| -rw-r--r-- | Documentation/atomic_ops.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/atomic_ops.txt b/Documentation/atomic_ops.txt index 05851e9982e..938f9995705 100644 --- a/Documentation/atomic_ops.txt +++ b/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. |