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authorChristoph Hellwig <hch@lst.de>2015-01-25 21:11:59 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2015-01-29 00:13:13 -0500
commitdbe4e192a234cd6133d86fffb965d0f032c12ccc (patch)
treee5b5bbc9b22a289ec33fbc808f7e81d926caec06 /fs/splice.c
parentnew helper: iov_iter_bvec() (diff)
downloadlinux-dev-dbe4e192a234cd6133d86fffb965d0f032c12ccc.tar.xz
linux-dev-dbe4e192a234cd6133d86fffb965d0f032c12ccc.zip
fs: add vfs_iter_{read,write} helpers
Simple helpers that pass an arbitrary iov_iter to filesystems. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/splice.c')
-rw-r--r--fs/splice.c16
1 files changed, 2 insertions, 14 deletions
diff --git a/fs/splice.c b/fs/splice.c
index 7c7176f2d1e7..7968da96bebb 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -961,7 +961,6 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
splice_from_pipe_begin(&sd);
while (sd.total_len) {
struct iov_iter from;
- struct kiocb kiocb;
size_t left;
int n, idx;
@@ -1005,26 +1004,15 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
left -= this_len;
}
- /* ... iov_iter */
iov_iter_bvec(&from, ITER_BVEC | WRITE, array, n,
sd.total_len - left);
-
- /* ... and iocb */
- init_sync_kiocb(&kiocb, out);
- kiocb.ki_pos = sd.pos;
- kiocb.ki_nbytes = sd.total_len - left;
-
- /* now, send it */
- ret = out->f_op->write_iter(&kiocb, &from);
- if (-EIOCBQUEUED == ret)
- ret = wait_on_sync_kiocb(&kiocb);
-
+ ret = vfs_iter_write(out, &from, &sd.pos);
if (ret <= 0)
break;
sd.num_spliced += ret;
sd.total_len -= ret;
- *ppos = sd.pos = kiocb.ki_pos;
+ *ppos = sd.pos;
/* dismiss the fully eaten buffers, adjust the partial one */
while (ret) {