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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
Download Patch File Download Diff File Expand all files Collapse all files

4
security/device_cgroup.c
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@@ -496,7 +496,7 @@ static inline bool has_children(struct dev_cgroup *devcgroup)
* parent cgroup has the access you're asking for.
*/
static int devcgroup_update_access(struct dev_cgroup *devcgroup,
int filetype, const char *buffer)
int filetype, char *buffer)
{
const char *b;
char temp[12]; /* 11 + 1 characters needed for a u32 */
@@ -652,7 +652,7 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup,
}
static int devcgroup_access_write(struct cgroup_subsys_state *css,
struct cftype *cft, const char *buffer)
struct cftype *cft, char *buffer)
{
int retval;