diff options
| author | Xie Yongji <xieyongji@bytedance.com> | 2021-08-31 13:36:24 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-09-06 14:20:56 +0300 |
| commit | 9c930054f2f5326d59ee4bf8d7d1cf6c82f5643b (patch) | |
| tree | 6306ff784fd8448edf9379b516d89ca96bdad559 /fs/file.c | |
| parent | 7a6b92d33ab166c6ea6e5764033ca99dcb6ec361 (diff) | |
| download | linux-9c930054f2f5326d59ee4bf8d7d1cf6c82f5643b.tar.xz | |
file: Export receive_fd() to modules
Export receive_fd() so that some modules can use
it to pass file descriptor between processes without
missing any security stuffs.
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210831103634.33-4-xieyongji@bytedance.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'fs/file.c')
| -rw-r--r-- | fs/file.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/file.c b/fs/file.c index 86dc9956af32..210e540672aa 100644 --- a/fs/file.c +++ b/fs/file.c @@ -1134,6 +1134,12 @@ int receive_fd_replace(int new_fd, struct file *file, unsigned int o_flags) return new_fd; } +int receive_fd(struct file *file, unsigned int o_flags) +{ + return __receive_fd(file, NULL, o_flags); +} +EXPORT_SYMBOL_GPL(receive_fd); + static int ksys_dup3(unsigned int oldfd, unsigned int newfd, int flags) { int err = -EBADF; |