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cgroup: drop const from @buffer of cftype->write_string()

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cftype->write_string() just passes on the writeable buffer from kernfs
and there's no reason to add const restriction on the buffer.  The
only thing const achieves is unnecessarily complicating parsing of the
buffer.  Drop const from @buffer.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Michal Hocko <mhocko@suse.cz>                                           
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
This commit is contained in:
Tejun Heo
2014-03-19 10:23:54 -04:00
parent 3dd06ffa9d
commit 4d3bb511b5
11 changed files with 15 additions and 15 deletions
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2
kernel/cgroup.c
View File

@@ -2143,7 +2143,7 @@ static int cgroup_procs_write(struct cgroup_subsys_state *css,
}
static int cgroup_release_agent_write(struct cgroup_subsys_state *css,
struct cftype *cft, const char *buffer)
struct cftype *cft, char *buffer)
{
struct cgroup_root *root = css->cgroup->root;

2
kernel/cgroup_freezer.c
View File

@@ -442,7 +442,7 @@ static void freezer_change_state(struct freezer *freezer, bool freeze)
}
static int freezer_write(struct cgroup_subsys_state *css, struct cftype *cft,
const char *buffer)
char *buffer)
{
bool freeze;

2
kernel/cpuset.c
View File

@@ -1610,7 +1610,7 @@ out_unlock:
* Common handling for a write to a "cpus" or "mems" file.
*/
static int cpuset_write_resmask(struct cgroup_subsys_state *css,
struct cftype *cft, const char *buf)
struct cftype *cft, char *buf)
{
struct cpuset *cs = css_cs(css);
struct cpuset *trialcs;