Commit 1a2142b0 authored by Grant Grundler's avatar Grant Grundler Committed by Linus Torvalds

atomic_ops.txt: mention local_t

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: default avatarGrant Grundler <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 74beb9db
......@@ -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.
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