1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
index 6a2185eb66c5..e773f45d19d9 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -395,6 +395,11 @@ static int binderfs_binder_ctl_create(struct super_block *sb)
         struct inode *inode = NULL;
         struct dentry *root = sb->s_root;
         struct binderfs_info *info = sb->s_fs_info;
+#if defined(CONFIG_IPC_NS)
+        bool use_reserve = (info->ipc_ns == &init_ipc_ns);
+#else
+        bool use_reserve = true;
+#endif
 
         device = kzalloc(sizeof(*device), GFP_KERNEL);
         if (!device)
@@ -413,7 +418,10 @@ static int binderfs_binder_ctl_create(struct super_block *sb)
 
         /* Reserve a new minor number for the new device. */
         mutex_lock(&binderfs_minors_mutex);
-        minor = ida_alloc_max(&binderfs_minors, BINDERFS_MAX_MINOR, GFP_KERNEL);
+        minor = ida_alloc_max(&binderfs_minors,
+                              use_reserve ? BINDERFS_MAX_MINOR :
+                                            BINDERFS_MAX_MINOR_CAPPED,
+                              GFP_KERNEL);
         mutex_unlock(&binderfs_minors_mutex);
         if (minor < 0) {
                 ret = minor;
@@ -542,7 +550,7 @@ static struct file_system_type binder_fs_type = {
         .fs_flags       = FS_USERNS_MOUNT,
 };
 
-static int __init init_binderfs(void)
+int __init init_binderfs(void)
 {
         int ret;
 
@@ -560,5 +568,3 @@ static int __init init_binderfs(void)
 
         return ret;
 }
-
-device_initcall(init_binderfs);