SLUB: Drop write permission to /proc/slabinfo

SLUB does not support writes to /proc/slabinfo so there should not be write
permission to do that either.

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

diff --git a/mm/slub.c b/mm/slub.c
index 801fe4b..e16c9fb 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4758,7 +4758,7 @@ static const struct file_operations proc_slabinfo_operations = {
 
 static int __init slab_proc_init(void)
 {
-       proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
+       proc_create("slabinfo", S_IRUGO, NULL, &proc_slabinfo_operations);
        return 0;
 }
 module_init(slab_proc_init);