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| author | Jens Axboe <jens.axboe@oracle.com> | 2007-06-12 21:17:17 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2007-07-10 08:04:12 +0200 |
| commit | c66ab6fa705e1b2887a6d9246b798bdc526839e2 (patch) | |
| tree | 764ece0ee44f937012dfaa1657709da548ed5b16 /include/linux/pipe_fs_i.h | |
| parent | 71780f59e127bb281a9302d430495ca9586c14e7 (diff) | |
| download | lwn-c66ab6fa705e1b2887a6d9246b798bdc526839e2.tar.gz lwn-c66ab6fa705e1b2887a6d9246b798bdc526839e2.zip | |
splice: abstract out actor data
For direct splicing (or private splicing), the output may not be a file.
So abstract out the handling into a specified actor function and put
the data in the splice_desc structure earlier, so we can build on top
of that.
This is the first step in better splice handling for drivers, and also
for implementing vmsplice _to_ user memory.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/pipe_fs_i.h')
| -rw-r--r-- | include/linux/pipe_fs_i.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index c8884f971228..883ba9b78d3f 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -94,13 +94,15 @@ struct splice_desc { typedef int (splice_actor)(struct pipe_inode_info *, struct pipe_buffer *, struct splice_desc *); +typedef int (splice_direct_actor)(struct pipe_inode_info *, + struct splice_desc *); extern ssize_t splice_from_pipe(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int, splice_actor *); - -extern ssize_t __splice_from_pipe(struct pipe_inode_info *, struct file *, - loff_t *, size_t, unsigned int, - splice_actor *); +extern ssize_t __splice_from_pipe(struct pipe_inode_info *, + struct splice_desc *, splice_actor *); +extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *, + splice_direct_actor *); #endif |