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path: root/drivers/android/binderfs.c
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Diffstat (limited to 'drivers/android/binderfs.c')
-rw-r--r--drivers/android/binderfs.c14
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);