diff options
| author | Tejun Heo <tj@kernel.org> | 2013-08-09 04:11:22 +0400 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-08-09 04:11:22 +0400 |
| commit | c9710d8018273b0740e0794858f1961fcea5e61a (patch) | |
| tree | 889735f6c439e4cb49a7f0d47514522406f3d924 /kernel | |
| parent | 8af01f56a03e9cbd91a55d688fce1315021efba8 (diff) | |
| download | linux-c9710d8018273b0740e0794858f1961fcea5e61a.tar.xz | |
cpuset: drop "const" qualifiers from struct cpuset instances
cpuset uses "const" qualifiers on struct cpuset in some functions;
however, it doesn't work well when a value derived from returned const
pointer has to be passed to an accessor. It's C after all.
Drop the "const" qualifiers except for the trivially leaf ones. This
patch doesn't make any functional changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cpuset.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index be4512ba2c0c..f7371341d42a 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -128,7 +128,7 @@ static inline struct cpuset *task_cs(struct task_struct *task) struct cpuset, css); } -static inline struct cpuset *parent_cs(const struct cpuset *cs) +static inline struct cpuset *parent_cs(struct cpuset *cs) { struct cgroup *pcgrp = cs->css.cgroup->parent; @@ -319,8 +319,7 @@ static struct file_system_type cpuset_fs_type = { * * Call with callback_mutex held. */ -static void guarantee_online_cpus(const struct cpuset *cs, - struct cpumask *pmask) +static void guarantee_online_cpus(struct cpuset *cs, struct cpumask *pmask) { while (!cpumask_intersects(cs->cpus_allowed, cpu_online_mask)) cs = parent_cs(cs); @@ -338,7 +337,7 @@ static void guarantee_online_cpus(const struct cpuset *cs, * * Call with callback_mutex held. */ -static void guarantee_online_mems(const struct cpuset *cs, nodemask_t *pmask) +static void guarantee_online_mems(struct cpuset *cs, nodemask_t *pmask) { while (!nodes_intersects(cs->mems_allowed, node_states[N_MEMORY])) cs = parent_cs(cs); @@ -383,7 +382,7 @@ static int is_cpuset_subset(const struct cpuset *p, const struct cpuset *q) * alloc_trial_cpuset - allocate a trial cpuset * @cs: the cpuset that the trial cpuset duplicates */ -static struct cpuset *alloc_trial_cpuset(const struct cpuset *cs) +static struct cpuset *alloc_trial_cpuset(struct cpuset *cs) { struct cpuset *trial; @@ -430,7 +429,7 @@ static void free_trial_cpuset(struct cpuset *trial) * Return 0 if valid, -errno if not. */ -static int validate_change(const struct cpuset *cur, const struct cpuset *trial) +static int validate_change(struct cpuset *cur, struct cpuset *trial) { struct cgroup *cgrp; struct cpuset *c, *par; @@ -2343,7 +2342,7 @@ void cpuset_cpus_allowed(struct task_struct *tsk, struct cpumask *pmask) void cpuset_cpus_allowed_fallback(struct task_struct *tsk) { - const struct cpuset *cpus_cs; + struct cpuset *cpus_cs; rcu_read_lock(); cpus_cs = effective_cpumask_cpuset(task_cs(tsk)); @@ -2416,7 +2415,7 @@ int cpuset_nodemask_valid_mems_allowed(nodemask_t *nodemask) * callback_mutex. If no ancestor is mem_exclusive or mem_hardwall * (an unusual configuration), then returns the root cpuset. */ -static const struct cpuset *nearest_hardwall_ancestor(const struct cpuset *cs) +static struct cpuset *nearest_hardwall_ancestor(struct cpuset *cs) { while (!(is_mem_exclusive(cs) || is_mem_hardwall(cs)) && parent_cs(cs)) cs = parent_cs(cs); @@ -2486,7 +2485,7 @@ static const struct cpuset *nearest_hardwall_ancestor(const struct cpuset *cs) */ int __cpuset_node_allowed_softwall(int node, gfp_t gfp_mask) { - const struct cpuset *cs; /* current cpuset ancestors */ + struct cpuset *cs; /* current cpuset ancestors */ int allowed; /* is allocation in zone z allowed? */ if (in_interrupt() || (gfp_mask & __GFP_THISNODE)) |