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splice: Rename direct_splice_read() to copy_splice_read() 

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>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christian Brauner <brauner@kernel.org>
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
Link: https://lore.kernel.org/r/20230522135018.2742245-4-dhowells@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
David Howells 2023-05-22 14:49:50 +01:00 committed by Jens Axboe
parent 83aeff881e
commit 69df79a451
4 changed files with 11 additions and 12 deletions
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4
fs/cifs/cifsfs.c
View File

@ -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,

2
fs/cifs/file.c
View File

@ -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);
}

11
fs/splice.c
View File

@ -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

6
include/linux/fs.h
View File

@ -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 *,