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| author | Al Viro <viro@zeniv.linux.org.uk> | 2014-04-02 19:56:54 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 17:37:58 -0400 |
| commit | fb9096a344e2964c6a71520931c08abb1301248e (patch) | |
| tree | 1874e0af887636006ffec3110c90bd173e84c5f5 /fs/pipe.c | |
| parent | e6a7bcb4c489e3e078ba3cc92ae6621b2b8bb9a7 (diff) | |
| download | lwn-fb9096a344e2964c6a71520931c08abb1301248e.tar.gz lwn-fb9096a344e2964c6a71520931c08abb1301248e.zip | |
pipe: switch to ->read_iter()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/pipe.c')
| -rw-r--r-- | fs/pipe.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index cd4ccf07e772..05ccb00cb407 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -271,24 +271,18 @@ static const struct pipe_buf_operations packet_pipe_buf_ops = { }; static ssize_t -pipe_read(struct kiocb *iocb, const struct iovec *_iov, - unsigned long nr_segs, loff_t pos) +pipe_read(struct kiocb *iocb, struct iov_iter *to) { + size_t total_len = iov_iter_count(to); struct file *filp = iocb->ki_filp; struct pipe_inode_info *pipe = filp->private_data; int do_wakeup; ssize_t ret; - struct iovec *iov = (struct iovec *)_iov; - size_t total_len; - struct iov_iter iter; - total_len = iov_length(iov, nr_segs); /* Null read succeeds. */ if (unlikely(total_len == 0)) return 0; - iov_iter_init(&iter, READ, iov, nr_segs, total_len); - do_wakeup = 0; ret = 0; __pipe_lock(pipe); @@ -312,7 +306,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov, break; } - written = copy_page_to_iter(buf->page, buf->offset, chars, &iter); + written = copy_page_to_iter(buf->page, buf->offset, chars, to); if (unlikely(written < chars)) { if (!ret) ret = -EFAULT; @@ -1044,8 +1038,8 @@ err: const struct file_operations pipefifo_fops = { .open = fifo_open, .llseek = no_llseek, - .read = do_sync_read, - .aio_read = pipe_read, + .read = new_sync_read, + .read_iter = pipe_read, .write = do_sync_write, .aio_write = pipe_write, .poll = pipe_poll, |