diff options
author | David Howells <dhowells@redhat.com> | 2023-05-22 16:50:16 +0300 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2023-05-24 17:42:17 +0300 |
commit | c6585011bc1d8934cc78046c50fc94590fb2ab24 (patch) | |
tree | ba206a9d429bc764335ccdd3f11a1134c283481d | |
parent | 2cb1e08985e3dc59d0a4ebf770a87e3e2410d985 (diff) | |
download | linux-c6585011bc1d8934cc78046c50fc94590fb2ab24.tar.xz |
splice: Remove generic_file_splice_read()
Remove generic_file_splice_read() as it has been replaced with calls to
filemap_splice_read() and copy_splice_read().
With this, ITER_PIPE is no longer used.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christian Brauner <brauner@kernel.org>
cc: Jens Axboe <axboe@kernel.dk>
cc: Steve French <smfrench@gmail.com>
cc: Al Viro <viro@zeniv.linux.org.uk>
cc: David Hildenbrand <david@redhat.com>
cc: John Hubbard <jhubbard@nvidia.com>
cc: linux-mm@kvack.org
cc: linux-block@vger.kernel.org
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/20230522135018.2742245-30-dhowells@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r-- | fs/splice.c | 43 | ||||
-rw-r--r-- | include/linux/fs.h | 2 |
2 files changed, 0 insertions, 45 deletions
diff --git a/fs/splice.c b/fs/splice.c index 8268248df3a9..9be4cb3b9879 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -386,49 +386,6 @@ ssize_t copy_splice_read(struct file *in, loff_t *ppos, } EXPORT_SYMBOL(copy_splice_read); -/** - * generic_file_splice_read - splice data from file to a pipe - * @in: file to splice from - * @ppos: position in @in - * @pipe: pipe to splice to - * @len: number of bytes to splice - * @flags: splice modifier flags - * - * Description: - * Will read pages from given file and fill them into a pipe. Can be - * used as long as it has more or less sane ->read_iter(). - * - */ -ssize_t generic_file_splice_read(struct file *in, loff_t *ppos, - struct pipe_inode_info *pipe, size_t len, - unsigned int flags) -{ - struct iov_iter to; - struct kiocb kiocb; - int ret; - - iov_iter_pipe(&to, ITER_DEST, pipe, len); - init_sync_kiocb(&kiocb, in); - kiocb.ki_pos = *ppos; - ret = call_read_iter(in, &kiocb, &to); - if (ret > 0) { - *ppos = kiocb.ki_pos; - file_accessed(in); - } else if (ret < 0) { - /* free what was emitted */ - pipe_discard_from(pipe, to.start_head); - /* - * callers of ->splice_read() expect -EAGAIN on - * "can't put anything in there", rather than -EFAULT. - */ - if (ret == -EFAULT) - ret = -EAGAIN; - } - - return ret; -} -EXPORT_SYMBOL(generic_file_splice_read); - const struct pipe_buf_operations default_pipe_buf_ops = { .release = generic_pipe_buf_release, .try_steal = generic_pipe_buf_try_steal, diff --git a/include/linux/fs.h b/include/linux/fs.h index e3c22efa413e..08ba2ae1d3ce 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2755,8 +2755,6 @@ ssize_t filemap_splice_read(struct file *in, loff_t *ppos, ssize_t copy_splice_read(struct file *in, loff_t *ppos, struct pipe_inode_info *pipe, size_t len, unsigned int flags); -extern ssize_t generic_file_splice_read(struct file *, loff_t *, - struct pipe_inode_info *, size_t, unsigned int); extern ssize_t iter_file_splice_write(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int); extern ssize_t generic_splice_sendpage(struct pipe_inode_info *pipe, |