| 1 | #ifndef _LTTNG_NS_H |
| 2 | #define _LTTNG_NS_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (c) 2019 - Michael Jeanson <mjeanson@efficios.com> |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; only |
| 10 | * version 2.1 of the License. |
| 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with this library; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | |
| 23 | /* |
| 24 | * The lowest valid inode number that can be allocated in the proc filesystem |
| 25 | * is 0xF0000000. Any number below can be used internally as an error code. |
| 26 | * |
| 27 | * Zero is used in the kernel as an error code, it's the value we will return |
| 28 | * when we fail to read the proper inode number. |
| 29 | * |
| 30 | * One is used internally to identify an uninitialized cache entry, it should |
| 31 | * never be returned. |
| 32 | */ |
| 33 | |
| 34 | enum ns_ino_state { |
| 35 | NS_INO_UNAVAILABLE = 0x0, |
| 36 | NS_INO_UNINITIALIZED = 0x1, |
| 37 | NS_INO_MIN = 0xF0000000, |
| 38 | }; |
| 39 | |
| 40 | #endif /* _LTTNG_NS_H */ |