在 2021/7/30 下午1:16, Cai Huoqing 写道:
> Fix typo: iff ==> if
>
> Signed-off-by: Cai Huoqing <caihuoqing@xxxxxxxxx>
Reviewed-by: Hu Haowen <src.res@xxxxxxxx>
> ---
> Documentation/admin-guide/cgroup-v1/cgroups.rst | 2 +-
> Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst | 4 ++--
> kernel/cgroup/cgroup-v1.c | 4 ++--
> kernel/cgroup/cgroup.c | 6 +++---
> kernel/cgroup/cpuset.c | 4 ++--
> 5 files changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/Documentation/admin-guide/cgroup-v1/cgroups.rst b/Documentation/admin-guide/cgroup-v1/cgroups.rst
> index b0688011ed06..fa747466e304 100644
> --- a/Documentation/admin-guide/cgroup-v1/cgroups.rst
> +++ b/Documentation/admin-guide/cgroup-v1/cgroups.rst
> @@ -573,7 +573,7 @@ cgroup_for_each_descendant_pre() for details.
> ``void css_offline(struct cgroup *cgrp);``
> (cgroup_mutex held by caller)
>
> -This is the counterpart of css_online() and called iff css_online()
> +This is the counterpart of css_online() and called if css_online()
> has succeeded on @cgrp. This signifies the beginning of the end of
> @cgrp. @cgrp is being removed and the subsystem should start dropping
> all references it's holding on @cgrp. When all references are dropped,
> diff --git a/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst b/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst
> index 582d3427de3f..a908c5226bde 100644
> --- a/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst
> +++ b/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst
> @@ -56,7 +56,7 @@ expected.
> The cgroup freezer is hierarchical. Freezing a cgroup freezes all
> tasks belonging to the cgroup and all its descendant cgroups. Each
> cgroup has its own state (self-state) and the state inherited from the
> -parent (parent-state). Iff both states are THAWED, the cgroup is
> +parent (parent-state). If both states are THAWED, the cgroup is
> THAWED.
>
> The following cgroupfs files are created by cgroup freezer.
> @@ -87,7 +87,7 @@ The following cgroupfs files are created by cgroup freezer.
> * freezer.self_freezing: Read only.
>
> Shows the self-state. 0 if the self-state is THAWED; otherwise, 1.
> - This value is 1 iff the last write to freezer.state was "FROZEN".
> + This value is 1 if the last write to freezer.state was "FROZEN".
>
> * freezer.parent_freezing: Read only.
>
> diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c
> index de2c432dee20..71d2b46d1968 100644
> --- a/kernel/cgroup/cgroup-v1.c
> +++ b/kernel/cgroup/cgroup-v1.c
> @@ -120,7 +120,7 @@ int cgroup_transfer_tasks(struct cgroup *to, struct cgroup *from)
> goto out_err;
>
> /*
> - * Migrate tasks one-by-one until @from is empty. This fails iff
> + * Migrate tasks one-by-one until @from is empty. This fails if
> * ->can_attach() fails.
> */
> do {
> @@ -215,7 +215,7 @@ static void cgroup_pidlist_destroy_work_fn(struct work_struct *work)
> mutex_lock(&l->owner->pidlist_mutex);
>
> /*
> - * Destroy iff we didn't get queued again. The state won't change
> + * Destroy if we didn't get queued again. The state won't change
> * as destroy_dwork can only be queued while locked.
> */
> if (!delayed_work_pending(dwork)) {
> diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
> index 3a0161c21b6b..b831554372a2 100644
> --- a/kernel/cgroup/cgroup.c
> +++ b/kernel/cgroup/cgroup.c
> @@ -793,7 +793,7 @@ static bool css_set_populated(struct css_set *cset)
> * One of the css_sets associated with @cgrp is either getting its first
> * task or losing the last. Update @cgrp->nr_populated_* accordingly. The
> * count is propagated towards root so that a given cgroup's
> - * nr_populated_children is zero iff none of its descendants contain any
> + * nr_populated_children is zero if none of its descendants contain any
> * tasks.
> *
> * @cgrp's interface file "cgroup.populated" is zero if both
> @@ -2410,7 +2410,7 @@ struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset,
> * @mgctx: migration context
> *
> * Migrate tasks in @mgctx as setup by migration preparation functions.
> - * This function fails iff one of the ->can_attach callbacks fails and
> + * This function fails if one of the ->can_attach callbacks fails and
> * guarantees that either all or none of the tasks in @mgctx are migrated.
> * @mgctx is consumed regardless of success.
> */
> @@ -4264,7 +4264,7 @@ struct cgroup_subsys_state *css_next_child(struct cgroup_subsys_state *pos,
> * increasing unique serial number and always appended to the
> * sibling list, the next one can be found by walking the parent's
> * children until the first css with higher serial number than
> - * @pos's. While this path can be slower, it happens iff iteration
> + * @pos's. While this path can be slower, it happens if iteration
> * races against release and the race window is very small.
> */
> if (!pos) {
> diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
> index adb5190c4429..f09fc0347550 100644
> --- a/kernel/cgroup/cpuset.c
> +++ b/kernel/cgroup/cpuset.c
> @@ -782,7 +782,7 @@ static int generate_sched_domains(cpumask_var_t **domains,
> if (cp == &top_cpuset)
> continue;
> /*
> - * Continue traversing beyond @cp iff @cp has some CPUs and
> + * Continue traversing beyond @cp if @cp has some CPUs and
> * isn't load balancing. The former is obvious. The
> * latter: All child cpusets contain a subset of the
> * parent's cpus, so just skip them, and then we call
> @@ -1801,7 +1801,7 @@ static int update_nodemask(struct cpuset *cs, struct cpuset *trialcs,
> }
>
> /*
> - * An empty mems_allowed is ok iff there are no tasks in the cpuset.
> + * An empty mems_allowed is ok if there are no tasks in the cpuset.
> * Since nodelist_parse() fails on an empty mask, we special case
> * that parsing. The validate_change() call ensures that cpusets
> * with tasks have memory.
