projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| 9f36eaed MJ |
1 | /* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) |
| 2 | * | |
| 83f9bb7f MD |
3 | * wrapper/fdtable.h |
| 4 | * | |
| 5 | * Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 83f9bb7f MD |
6 | */ |
| 7 | ||
| 9f36eaed MJ |
8 | #ifndef _LTTNG_WRAPPER_FDTABLE_H |
| 9 | #define _LTTNG_WRAPPER_FDTABLE_H | |
| 10 | ||
| 2d042821 | 11 | #include <lttng-kernel-version.h> |
| 83f9bb7f | 12 | #include <linux/fdtable.h> |
| 215dffda | 13 | #include <linux/sched.h> |
| 83f9bb7f | 14 | |
| 71c5729c MJ |
15 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,11,0)) |
| 16 | static inline | |
| 17 | struct file *lttng_lookup_fd_rcu(unsigned int fd) | |
| 18 | { | |
| 19 | return lookup_fd_rcu(fd); | |
| 20 | } | |
| 21 | #else | |
| 22 | static inline | |
| 23 | struct file *lttng_lookup_fd_rcu(unsigned int fd) | |
| 24 | { | |
| 25 | return fcheck(fd); | |
| 26 | } | |
| 27 | #endif | |
| 28 | ||
| 2d042821 | 29 | #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,7,0)) |
| 83f9bb7f MD |
30 | |
| 31 | int lttng_iterate_fd(struct files_struct *files, | |
| 32 | unsigned int first, | |
| 33 | int (*cb)(const void *, struct file *, unsigned int), | |
| 34 | const void *ctx); | |
| 35 | ||
| 36 | #else | |
| 37 | ||
| 38 | /* | |
| 39 | * iterate_fd() appeared at commit | |
| 40 | * c3c073f808b22dfae15ef8412b6f7b998644139a in the Linux kernel (first | |
| 41 | * released kernel: v3.7). | |
| 42 | */ | |
| 43 | #define lttng_iterate_fd iterate_fd | |
| 44 | ||
| 45 | #endif | |
| 518dba2d | 46 | |
| 2d042821 | 47 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,4,0)) |
| 518dba2d MJ |
48 | |
| 49 | static inline bool lttng_close_on_exec(int fd, const struct fdtable *fdt) | |
| 50 | { | |
| 51 | return close_on_exec(fd, fdt); | |
| 52 | } | |
| 53 | ||
| 54 | #else | |
| 55 | ||
| 56 | static inline bool lttng_close_on_exec(int fd, const struct fdtable *fdt) | |
| 57 | { | |
| 58 | return FD_ISSET(fd, fdt->close_on_exec); | |
| 59 | } | |
| 60 | ||
| 61 | #endif | |
| 62 | ||
| 83f9bb7f | 63 | #endif /* _LTTNG_WRAPPER_FDTABLE_H */ |