[PATCH v21 03/30] splice: Rename direct_splice_read() to copy_splice_read()

David Howells
2023-05-20T00:01:10Z

Rename direct_splice_read() to copy_splice_read() to better reflect as to
what it does.

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Christoph Hellwig <hch@lst.de>
cc: Steve French <sfrench@samba.org>
cc: Jens Axboe <axboe@kernel.dk>
cc: Al Viro <viro@zeniv.linux.org.uk>
cc: linux-cifs@vger.kernel.org
cc: linux-mm@kvack.org
cc: linux-block@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
---
fs/cifs/cifsfs.c | 4 ++--
fs/cifs/file.c | 2 +-
fs/splice.c | 11 +++++------
include/linux/fs.h | 6 +++---
4 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 43a4d8603db3..fa2477bbcc86 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1416,7 +1416,7 @@ const struct file_operations cifs_file_direct_ops = {
.fsync = cifs_fsync,
.flush = cifs_flush,
.mmap = cifs_file_mmap,
- .splice_read = direct_splice_read,
+ .splice_read = copy_splice_read,
.splice_write = iter_file_splice_write,
.unlocked_ioctl = cifs_ioctl,
.copy_file_range = cifs_copy_file_range,
@@ -1470,7 +1470,7 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
.fsync = cifs_fsync,
.flush = cifs_flush,
.mmap = cifs_file_mmap,
- .splice_read = direct_splice_read,
+ .splice_read = copy_splice_read,
.splice_write = iter_file_splice_write,
.unlocked_ioctl = cifs_ioctl,
.copy_file_range = cifs_copy_file_range,
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index c5fcefdfd797..023496207c18 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -5091,6 +5091,6 @@ ssize_t cifs_splice_read(struct file *in, loff_t *ppos,
if (unlikely(!len))
return 0;
if (in->f_flags & O_DIRECT)
- return direct_splice_read(in, ppos, pipe, len, flags);
+ return copy_splice_read(in, ppos, pipe, len, flags);
return filemap_splice_read(in, ppos, pipe, len, flags);
}
diff --git a/fs/splice.c b/fs/splice.c
index 3e06611d19ae..2478e065bc53 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -300,12 +300,11 @@ void splice_shrink_spd(struct splice_pipe_desc *spd)
}

/*
- * Splice data from an O_DIRECT file into pages and then add them to the output
- * pipe.
+ * Copy data from a file into pages and then splice those into the output pipe.
*/
-ssize_t direct_splice_read(struct file *in, loff_t *ppos,
- struct pipe_inode_info *pipe,
- size_t len, unsigned int flags)
+ssize_t copy_splice_read(struct file *in, loff_t *ppos,
+ struct pipe_inode_info *pipe,
+ size_t len, unsigned int flags)
{
struct iov_iter to;
struct bio_vec *bv;
@@ -390,7 +389,7 @@ ssize_t direct_splice_read(struct file *in, loff_t *ppos,
kfree(bv);
return ret;
}
-EXPORT_SYMBOL(direct_splice_read);
+EXPORT_SYMBOL(copy_splice_read);

/**
* generic_file_splice_read - splice data from file to a pipe
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 21a981680856..e3c22efa413e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2752,9 +2752,9 @@ ssize_t vfs_iocb_iter_write(struct file *file, struct kiocb *iocb,
ssize_t filemap_splice_read(struct file *in, loff_t *ppos,
struct pipe_inode_info *pipe,
size_t len, unsigned int flags);
-ssize_t direct_splice_read(struct file *in, loff_t *ppos,
- struct pipe_inode_info *pipe,
- size_t len, unsigned int flags);
+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 *,