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kernel/acct: move acct sysctls to its own file 

kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.

To help with this maintenance let's start by moving sysctls to places
where they actually belong.  The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.

All filesystem syctls now get reviewed by fs folks. This commit
follows the commit of fs, move the acct sysctl to its own file,
kernel/acct.c.

Signed-off-by: tangmeng <tangmeng@uniontech.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
This commit is contained in:
tangmeng 2022-02-18 18:59:23 +08:00 committed by Luis Chamberlain
parent 9df9186984
commit 801b501439
3 changed files with 21 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/acct.h
View File

@ -21,7 +21,6 @@
#ifdef CONFIG_BSD_PROCESS_ACCT
struct pid_namespace;
extern int acct_parm[]; /* for sysctl */
extern void acct_collect(long exitcode, int group_dead);
extern void acct_process(void);
extern void acct_exit_ns(struct pid_namespace *);

22
kernel/acct.c
View File

@ -70,11 +70,31 @@
* Turned into sysctl-controllable parameters. AV, 12/11/98
*/
int acct_parm[3] = {4, 2, 30};
static int acct_parm[3] = {4, 2, 30};
#define RESUME (acct_parm[0]) /* >foo% free space - resume */
#define SUSPEND (acct_parm[1]) /* <foo% free space - suspend */
#define ACCT_TIMEOUT (acct_parm[2]) /* foo second timeout between checks */
#ifdef CONFIG_SYSCTL
static struct ctl_table kern_acct_table[] = {
{
.procname = "acct",
.data = &acct_parm,
.maxlen = 3*sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{ }
};
static __init int kernel_acct_sysctls_init(void)
{
register_sysctl_init("kernel", kern_acct_table);
return 0;
}
late_initcall(kernel_acct_sysctls_init);
#endif /* CONFIG_SYSCTL */
/*
* External references and all of the globals.
*/

12
kernel/sysctl.c
View File

@ -82,9 +82,6 @@
#ifdef CONFIG_SPARC
#include <asm/setup.h>
#endif
#ifdef CONFIG_BSD_PROCESS_ACCT
#include <linux/acct.h>
#endif
#ifdef CONFIG_RT_MUTEXES
#include <linux/rtmutex.h>
#endif
@ -1856,15 +1853,6 @@ static struct ctl_table kern_table[] = {
.proc_handler = proc_dostring,
},
#endif
#ifdef CONFIG_BSD_PROCESS_ACCT
{
.procname = "acct",
.data = &acct_parm,
.maxlen = 3*sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec,
},
#endif
#ifdef CONFIG_MAGIC_SYSRQ
{
.procname = "sysrq",