proc: move /proc/vmallocinfo to mm/vmalloc.c
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 65ae576..0365369 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
+#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/debugobjects.h>
#include <linux/kallsyms.h>
@@ -1718,11 +1719,41 @@
return 0;
}
-const struct seq_operations vmalloc_op = {
+static const struct seq_operations vmalloc_op = {
.start = s_start,
.next = s_next,
.stop = s_stop,
.show = s_show,
};
+
+static int vmalloc_open(struct inode *inode, struct file *file)
+{
+ unsigned int *ptr = NULL;
+ int ret;
+
+ if (NUMA_BUILD)
+ ptr = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
+ ret = seq_open(file, &vmalloc_op);
+ if (!ret) {
+ struct seq_file *m = file->private_data;
+ m->private = ptr;
+ } else
+ kfree(ptr);
+ return ret;
+}
+
+static const struct file_operations proc_vmalloc_operations = {
+ .open = vmalloc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_private,
+};
+
+static int __init proc_vmalloc_init(void)
+{
+ proc_create("vmallocinfo", S_IRUSR, NULL, &proc_vmalloc_operations);
+ return 0;
+}
+module_init(proc_vmalloc_init);
#endif