Josh Triplett writes:
> When the system has only one CPU, lglock is effectively a spinlock; map
> it directly to spinlock to eliminate the indirection and duplicate code.
>
> In addition to removing overhead, this drops 1.6k of code with a defconfig
> modified to have !CONFIG_SMP, and 1.1k with a
When the system has only one CPU, lglock is effectively a spinlock; map
it directly to spinlock to eliminate the indirection and duplicate code.
In addition to removing overhead, this drops 1.6k of code with a defconfig
modified to have !CONFIG_SMP, and 1.1k with a minimal config.
Signed-off-by:
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