diff options
Diffstat (limited to 'Documentation/static-keys.txt')
| -rw-r--r-- | Documentation/static-keys.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/static-keys.txt b/Documentation/static-keys.txt index d93f3c00f24..c4407a41b0f 100644 --- a/Documentation/static-keys.txt +++ b/Documentation/static-keys.txt @@ -116,7 +116,7 @@ The branch(es) can then be switched via: static_key_slow_dec(&key); Thus, 'static_key_slow_inc()' means 'make the branch true', and -'static_key_slow_dec()' means 'make the the branch false' with appropriate +'static_key_slow_dec()' means 'make the branch false' with appropriate reference counting. For example, if the key is initialized true, a static_key_slow_dec(), will switch the branch to false. And a subsequent static_key_slow_inc(), will change the branch back to true. Likewise, if the @@ -235,8 +235,8 @@ label case adds: 6 (mov) + 2 (test) + 2 (jne) = 10 - 5 (5 byte jump 0) = 5 addition bytes. If we then include the padding bytes, the jump label code saves, 16 total bytes -of instruction memory for this small fucntion. In this case the non-jump label -function is 80 bytes long. Thus, we have have saved 20% of the instruction +of instruction memory for this small function. In this case the non-jump label +function is 80 bytes long. Thus, we have saved 20% of the instruction footprint. We can in fact improve this even further, since the 5-byte no-op really can be a 2-byte no-op since we can reach the branch with a 2-byte jmp. However, we have not yet implemented optimal no-op sizes (they are currently |