diff options
Diffstat (limited to 'fs/smb/server/mgmt/ksmbd_ida.c')
-rw-r--r-- | fs/smb/server/mgmt/ksmbd_ida.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/fs/smb/server/mgmt/ksmbd_ida.c b/fs/smb/server/mgmt/ksmbd_ida.c new file mode 100644 index 0000000000..54194d959a --- /dev/null +++ b/fs/smb/server/mgmt/ksmbd_ida.c @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2018 Samsung Electronics Co., Ltd. + */ + +#include "ksmbd_ida.h" + +static inline int __acquire_id(struct ida *ida, int from, int to) +{ + return ida_simple_get(ida, from, to, GFP_KERNEL); +} + +int ksmbd_acquire_smb2_tid(struct ida *ida) +{ + int id; + + id = __acquire_id(ida, 1, 0xFFFFFFFF); + + return id; +} + +int ksmbd_acquire_smb2_uid(struct ida *ida) +{ + int id; + + id = __acquire_id(ida, 1, 0); + if (id == 0xFFFE) + id = __acquire_id(ida, 1, 0); + + return id; +} + +int ksmbd_acquire_async_msg_id(struct ida *ida) +{ + return __acquire_id(ida, 1, 0); +} + +int ksmbd_acquire_id(struct ida *ida) +{ + return __acquire_id(ida, 0, 0); +} + +void ksmbd_release_id(struct ida *ida, int id) +{ + ida_simple_remove(ida, id); +} |