kcore: register vmalloc area in generic way

For /proc/kcore, vmalloc areas are registered per arch.  But, all of them
registers same range of [VMALLOC_START...VMALLOC_END) This patch unifies
them.  By this.  archs which have no kclist_add() hooks can see vmalloc
area correctly.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 659c1635db81..e10d360110bd 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -372,9 +372,14 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
         return acc;
 }
 
+static struct kcore_list kcore_vmalloc;
+
 static int __init proc_kcore_init(void)
 {
         proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations);
+
+        kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
+                VMALLOC_END - VMALLOC_START, KCORE_VMALLOC);
         return 0;
 }
 module_init(proc_kcore_init);