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| author | Kaixiong Yu <yukaixiong@huawei.com> | 2025-01-11 15:07:43 +0800 |
|---|---|---|
| committer | Joel Granados <joel.granados@kernel.org> | 2025-02-07 16:53:04 +0100 |
| commit | 97f5420ef1f4cc5e48ac90f5496039b31cf74036 (patch) | |
| tree | f337c3e0b2966923c1e259b59e03d63047a40d94 /mm/nommu.c | |
| parent | b121dd4d557212067275e988137f2e2c5b2c0077 (diff) | |
| download | bpf-next-97f5420ef1f4cc5e48ac90f5496039b31cf74036.tar.gz | |
mm: nommu: move sysctl to mm/nommu.c
The sysctl_nr_trim_pages belongs to nommu.c, move it to mm/nommu.c
from /kernel/sysctl.c. And remove the useless extern variable declaration
from include/linux/mm.h
Signed-off-by: Kaixiong Yu <yukaixiong@huawei.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Joel Granados <joel.granados@kernel.org>
Diffstat (limited to 'mm/nommu.c')
| -rw-r--r-- | mm/nommu.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index baa79abdaf037c..3c32f8b1eb5416 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -48,7 +48,6 @@ struct page *mem_map; unsigned long max_mapnr; EXPORT_SYMBOL(max_mapnr); unsigned long highest_memmap_pfn; -int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS; int heap_stack_gap = 0; atomic_long_t mmap_pages_allocated; @@ -392,6 +391,19 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) return mm->brk = brk; } +static int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS; + +static const struct ctl_table nommu_table[] = { + { + .procname = "nr_trim_pages", + .data = &sysctl_nr_trim_pages, + .maxlen = sizeof(sysctl_nr_trim_pages), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + }, +}; + /* * initialise the percpu counter for VM and region record slabs */ @@ -402,6 +414,7 @@ void __init mmap_init(void) ret = percpu_counter_init(&vm_committed_as, 0, GFP_KERNEL); VM_BUG_ON(ret); vm_region_jar = KMEM_CACHE(vm_region, SLAB_PANIC|SLAB_ACCOUNT); + register_sysctl_init("vm", nommu_table); } /* |