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| author | Miklos Szeredi <mszeredi@redhat.com> | 2016-09-27 10:45:12 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-10-05 18:23:57 -0400 |
| commit | 7bf2d1df80822ec056363627e2014990f068f7aa (patch) | |
| tree | 27001759d32eb13264bb03453c24a59d43b0cb4b /include/linux/pipe_fs_i.h | |
| parent | a7c2242166eb4b4447b0145705e4b66f5be89798 (diff) | |
| download | linux-7bf2d1df80822ec056363627e2014990f068f7aa.tar.gz linux-7bf2d1df80822ec056363627e2014990f068f7aa.tar.bz2 linux-7bf2d1df80822ec056363627e2014990f068f7aa.zip | |
pipe: add pipe_buf_get() helper
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/pipe_fs_i.h')
| -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 |