diff options
| author | Juri Lelli <juri.lelli@redhat.com> | 2018-12-19 14:34:44 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-04-19 19:44:14 +0200 |
| commit | b6fbbf31d15b5072250ec6ed79e415a1160e5621 (patch) | |
| tree | b7fe9cec52aacc6ba5758462469788bd9d53a69d /kernel/cgroup/cpuset.c | |
| parent | sched/core: Check quota and period overflow at usec to nsec conversion (diff) | |
| download | linux-b6fbbf31d15b5072250ec6ed79e415a1160e5621.tar.xz linux-b6fbbf31d15b5072250ec6ed79e415a1160e5621.zip | |
cgroup/cpuset: Update stale generate_sched_domains() comments
Commit:
fc560a26acce ("cpuset: replace cpuset->stack_list with cpuset_for_each_descendant_pre()")
removed the local list (q) that was used to perform a top-down scan
of all cpusets; however, comments mentioning it were not updated.
Update comments to reflect current implementation.
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: cgroups@vger.kernel.org
Cc: lizefan@huawei.com
Link: http://lkml.kernel.org/r/20181219133445.31982-1-juri.lelli@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/cgroup/cpuset.c')
| -rw-r--r-- | kernel/cgroup/cpuset.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 4834c4214e9c..6a1942ed781c 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -740,11 +740,10 @@ static inline int nr_cpusets(void) * Must be called with cpuset_mutex held. * * The three key local variables below are: - * q - a linked-list queue of cpuset pointers, used to implement a - * top-down scan of all cpusets. This scan loads a pointer - * to each cpuset marked is_sched_load_balance into the - * array 'csa'. For our purposes, rebuilding the schedulers - * sched domains, we can ignore !is_sched_load_balance cpusets. + * cp - cpuset pointer, used (together with pos_css) to perform a + * top-down scan of all cpusets. For our purposes, rebuilding + * the schedulers sched domains, we can ignore !is_sched_load_ + * balance cpusets. * csa - (for CpuSet Array) Array of pointers to all the cpusets * that need to be load balanced, for convenient iterative * access by the subsequent code that finds the best partition, @@ -775,7 +774,7 @@ static inline int nr_cpusets(void) static int generate_sched_domains(cpumask_var_t **domains, struct sched_domain_attr **attributes) { - struct cpuset *cp; /* scans q */ + struct cpuset *cp; /* top-down scan of cpusets */ struct cpuset **csa; /* array of all cpuset ptrs */ int csn; /* how many cpuset ptrs in csa so far */ int i, j, k; /* indices for partition finding loops */ |