diff options
Diffstat (limited to 'mm/nommu.c')
| -rw-r--r-- | mm/nommu.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index baa79abdaf03..acc18ce611ed 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); } /* @@ -1613,13 +1626,6 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr, } EXPORT_SYMBOL(remap_vmalloc_range); -vm_fault_t filemap_fsnotify_fault(struct vm_fault *vmf) -{ - BUG(); - return 0; -} -EXPORT_SYMBOL_GPL(filemap_fsnotify_fault); - vm_fault_t filemap_fault(struct vm_fault *vmf) { BUG(); |