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Cgroups/linux-cgroups-1.md: Fix typo

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Modify "cp_cgrp_subsys" to "cpu_cgrp_subsys".

Signed-off-by: Manbing <manbing3@gmail.com>
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Manbing 2020-03-12 09:04:39 +08:00
parent 9fa85802fe
commit 659a9be536
1 changed files with 1 additions and 1 deletions
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Cgroups/linux-cgroups-1.md
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@ -403,7 +403,7 @@ SUBSYS(cpu)
... ...
``` ```
This works because of `#undef` statement after first definition of the `SUBSYS` macro. Look at the `&_x ## _cgrp_subsys` expression. The `##` operator concatenates right and left expression in a `C` macro. So as we passed `cpuset`, `cpu` and etc., to the `SUBSYS` macro, somewhere `cpuset_cgrp_subsys`, `cp_cgrp_subsys` should be defined. And that's true. If you will look in the [kernel/cpuset.c](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/kernel/cpuset.c) source code file, you will see this definition: This works because of `#undef` statement after first definition of the `SUBSYS` macro. Look at the `&_x ## _cgrp_subsys` expression. The `##` operator concatenates right and left expression in a `C` macro. So as we passed `cpuset`, `cpu` and etc., to the `SUBSYS` macro, somewhere `cpuset_cgrp_subsys`, `cpu_cgrp_subsys` should be defined. And that's true. If you will look in the [kernel/cpuset.c](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/kernel/cpuset.c) source code file, you will see this definition:
```C ```C
struct cgroup_subsys cpuset_cgrp_subsys = { struct cgroup_subsys cpuset_cgrp_subsys = {