diff options
| author | Minghao Chi <chi.minghao@zte.com.cn> | 2023-03-28 14:46:28 +0800 |
|---|---|---|
| committer | Luis Chamberlain <mcgrof@kernel.org> | 2023-04-13 11:49:35 -0700 |
| commit | 48fe8ab8d5a39c7bc49cb41d0ad92c75f48a9550 (patch) | |
| tree | 0cd35403b0624cbd0fa6f0ab1f12dd888a4933e9 /kernel/sysctl.c | |
| parent | 8cbc82f3ec0d58961cf9c1e5d99e56741f4bf134 (diff) | |
mm: compaction: move compaction sysctl to its own file
This moves all compaction sysctls to its own file.
Move sysctl to where the functionality truly belongs to improve
readability, reduce merge conflicts, and facilitate maintenance.
I use x86_defconfig and linux-next-20230327 branch
$ make defconfig;make all -jn
CONFIG_COMPACTION=y
add/remove: 1/0 grow/shrink: 1/1 up/down: 350/-256 (94)
Function old new delta
vm_compaction - 320 +320
kcompactd_init 180 210 +30
vm_table 2112 1856 -256
Total: Before=21119987, After=21120081, chg +0.00%
Despite the addition of 94 bytes the patch still seems a worthwile
cleanup.
Link: https://lore.kernel.org/lkml/067f7347-ba10-5405-920c-0f5f985c84f4@suse.cz/
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'kernel/sysctl.c')
| -rw-r--r-- | kernel/sysctl.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 0a8a3c9c82e4..bfe53e835524 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -42,7 +42,6 @@ #include <linux/highuid.h> #include <linux/writeback.h> #include <linux/ratelimit.h> -#include <linux/compaction.h> #include <linux/hugetlb.h> #include <linux/initrd.h> #include <linux/key.h> @@ -746,27 +745,6 @@ int proc_dointvec(struct ctl_table *table, int write, void *buffer, return do_proc_dointvec(table, write, buffer, lenp, ppos, NULL, NULL); } -#ifdef CONFIG_COMPACTION -static int proc_dointvec_minmax_warn_RT_change(struct ctl_table *table, - int write, void *buffer, size_t *lenp, loff_t *ppos) -{ - int ret, old; - - if (!IS_ENABLED(CONFIG_PREEMPT_RT) || !write) - return proc_dointvec_minmax(table, write, buffer, lenp, ppos); - - old = *(int *)table->data; - ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos); - if (ret) - return ret; - if (old != *(int *)table->data) - pr_warn_once("sysctl attribute %s changed by %s[%d]\n", - table->procname, current->comm, - task_pid_nr(current)); - return ret; -} -#endif - /** * proc_douintvec - read a vector of unsigned integers * @table: the sysctl table @@ -2157,43 +2135,6 @@ static struct ctl_table vm_table[] = { .extra1 = SYSCTL_ONE, .extra2 = SYSCTL_FOUR, }, -#ifdef CONFIG_COMPACTION - { - .procname = "compact_memory", - .data = NULL, - .maxlen = sizeof(int), - .mode = 0200, - .proc_handler = sysctl_compaction_handler, - }, - { - .procname = "compaction_proactiveness", - .data = &sysctl_compaction_proactiveness, - .maxlen = sizeof(sysctl_compaction_proactiveness), - .mode = 0644, - .proc_handler = compaction_proactiveness_sysctl_handler, - .extra1 = SYSCTL_ZERO, - .extra2 = SYSCTL_ONE_HUNDRED, - }, - { - .procname = "extfrag_threshold", - .data = &sysctl_extfrag_threshold, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_minmax, - .extra1 = SYSCTL_ZERO, - .extra2 = SYSCTL_ONE_THOUSAND, - }, - { - .procname = "compact_unevictable_allowed", - .data = &sysctl_compact_unevictable_allowed, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_minmax_warn_RT_change, - .extra1 = SYSCTL_ZERO, - .extra2 = SYSCTL_ONE, - }, - -#endif /* CONFIG_COMPACTION */ { .procname = "min_free_kbytes", .data = &min_free_kbytes, |