diff options
| author | Miklos Szeredi <mszeredi@redhat.com> | 2020-02-26 01:46:13 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-11 07:51:15 +0100 |
| commit | 842fc0ee42c4949eda996ed7fbe122e75110e919 (patch) | |
| tree | 5d34422562a7f138b1ae3ed02c2db87fe055f4cf /include | |
| parent | c9343fc01d5459e01b7bf7c2277e789e85300884 (diff) | |
pipe: add pipe_buf_get() helper
commit 7bf2d1df80822ec056363627e2014990f068f7aa upstream.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Ajay Kaher <akaher@vmware.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pipe_fs_i.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index 24f5470d3944..10876f3cb3da 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -115,6 +115,17 @@ struct pipe_buf_operations { void (*get)(struct pipe_inode_info *, struct pipe_buffer *); }; +/** + * pipe_buf_get - get a reference to a pipe_buffer + * @pipe: the pipe that the buffer belongs to + * @buf: the buffer to get a reference to + */ +static inline void pipe_buf_get(struct pipe_inode_info *pipe, + struct pipe_buffer *buf) +{ + buf->ops->get(pipe, buf); +} + /* Differs from PIPE_BUF in that PIPE_SIZE is the length of the actual memory allocation, whereas PIPE_BUF makes atomicity guarantees. */ #define PIPE_SIZE PAGE_SIZE |