[PATCH] sendfile removal

[Jens Axboe <jens.axboe@oracle.com>]

Hi,

This patch removes the ->sendfile() hook from the file_operations
structure, and replaces the sys_sendfile() mechanism to be based on
->splice_read() instead. There should be no functional changes.

Work to be done:

- The ext2 xip support needs a splice_read() implementation, currently I
  just if 0'ed out the send xip_file_sendfile(). CC'ed Carsten, who
  seems to be the author of this code.

- shmem needs a splice_read() implementation. Optimistically CC'ed Hugh.

- nfds: The ->rq_sendfile_ok optimization is gone for now. I can't
  determine the value of it, but I'm assuming it's there for a reason.
  Any chance this can be converted to splice, or use something else than
  ->sendfile()? CC'ed Neil.

- relay: needs a splice_read() implementation. I think Tom already has
  one, CC'ed him.

Apart from that, it was mostly straight forward. Almost everybody uses
generic_file_sendfile(), which makes the conversion easy. I changed loop
to use do_generic_file_read() instead of sendfile, it works for me...

Patch is against current git.

 drivers/block/loop.c              |   22 ++++++++++-----
 fs/adfs/file.c                    |    2 -
 fs/affs/file.c                    |    2 -
 fs/afs/file.c                     |    2 -
 fs/bad_inode.c                    |    7 ----
 fs/bfs/file.c                     |    2 -
 fs/block_dev.c                    |    1 
 fs/cifs/cifsfs.c                  |    8 ++---
 fs/coda/file.c                    |   11 ++++---
 fs/ecryptfs/file.c                |   15 +++++-----
 fs/ext2/file.c                    |    5 ++-
 fs/ext3/file.c                    |    1 
 fs/ext4/file.c                    |    1 
 fs/fat/file.c                     |    2 -
 fs/fuse/file.c                    |    4 +-
 fs/gfs2/ops_file.c                |    1 
 fs/hfs/inode.c                    |    2 -
 fs/hfsplus/inode.c                |    2 -
 fs/hostfs/hostfs_kern.c           |    2 -
 fs/hpfs/file.c                    |    2 -
 fs/jffs2/file.c                   |    2 -
 fs/jfs/file.c                     |    1 
 fs/minix/file.c                   |    2 -
 fs/nfs/file.c                     |   15 ++++++----
 fs/nfsd/vfs.c                     |   19 ++++++------
 fs/ntfs/file.c                    |    2 -
 fs/ocfs2/file.c                   |    1 
 fs/qnx4/file.c                    |    2 -
 fs/ramfs/file-mmu.c               |    2 -
 fs/ramfs/file-nommu.c             |    2 -
 fs/read_write.c                   |   13 ++++++--
 fs/reiserfs/file.c                |    1 
 fs/smbfs/file.c                   |    9 +++---
 fs/sysv/file.c                    |    2 -
 fs/udf/file.c                     |    2 -
 fs/ufs/file.c                     |    2 -
 fs/xfs/linux-2.6/xfs_file.c       |   26 -----------------
 fs/xfs/linux-2.6/xfs_linux.h      |    1 
 fs/xfs/linux-2.6/xfs_lrw.c        |   44 ------------------------------
 fs/xfs/linux-2.6/xfs_lrw.h        |    3 --
 fs/xfs/linux-2.6/xfs_vnode.h      |    6 ----
 fs/xfs/xfs_vnodeops.c             |    3 --
 include/linux/fs.h                |    5 ---
 include/linux/sunrpc/svc.h        |    2 -
 kernel/relay.c                    |   16 ----------
 mm/filemap.c                      |   20 -------------
 mm/filemap_xip.c                  |    2 +
 mm/shmem.c                        |   32 ++++++++-------------
 net/sunrpc/auth_gss/svcauth_gss.c |    2 -
 net/sunrpc/svc.c                  |    2 -
 50 files changed, 105 insertions(+), 230 deletions(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 5526ead..92bac14 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -435,16 +435,24 @@ do_lo_receive(struct loop_device *lo,
 {
 	struct lo_read_data cookie;
 	struct file *file;
-	int retval;
+	read_descriptor_t desc;
+
+	desc.written = 0;
+	desc.count = bvec->bv_len;
+	desc.arg.data = &cookie;
+	desc.error = 0;
 
 	cookie.lo = lo;
 	cookie.page = bvec->bv_page;
 	cookie.offset = bvec->bv_offset;
 	cookie.bsize = bsize;
 	file = lo->lo_backing_file;
-	retval = file->f_op->sendfile(file, &pos, bvec->bv_len,
-			lo_read_actor, &cookie);
-	return (retval < 0)? retval: 0;
+
+	do_generic_file_read(file, &pos, &desc, lo_read_actor);
+	if (desc.written)
+		return 0;
+
+	return desc.error;
 }
 
 static int
@@ -679,8 +687,8 @@ static int loop_change_fd(struct loop_device *lo, struct file *lo_file,
 	if (!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode))
 		goto out_putf;
 
-	/* new backing store needs to support loop (eg sendfile) */
-	if (!inode->i_fop->sendfile)
+	/* new backing store needs to support loop (eg readpage) */
+	if (!file->f_mapping->a_ops->readpage)
 		goto out_putf;
 
 	/* size of the new backing store needs to be the same */
@@ -760,7 +768,7 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file,
 		 * If we can't read - sorry. If we only can't write - well,
 		 * it's going to be read-only.
 		 */
-		if (!file->f_op->sendfile)
+		if (!aops->readpage)
 			goto out_putf;
 		if (aops->prepare_write && aops->commit_write)
 			lo_flags |= LO_FLAGS_USE_AOPS;
diff --git a/fs/adfs/file.c b/fs/adfs/file.c
index f544a28..36e381c 100644
--- a/fs/adfs/file.c
+++ b/fs/adfs/file.c
@@ -33,7 +33,7 @@ const struct file_operations adfs_file_operations = {
 	.fsync		= file_fsync,
 	.write		= do_sync_write,
 	.aio_write	= generic_file_aio_write,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
 
 const struct inode_operations adfs_file_inode_operations = {
diff --git a/fs/affs/file.c b/fs/affs/file.c
index c879690..c314a35 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -35,7 +35,7 @@ const struct file_operations affs_file_operations = {
 	.open		= affs_file_open,
 	.release	= affs_file_release,
 	.fsync		= file_fsync,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
 
 const struct inode_operations affs_file_inode_operations = {
diff --git a/fs/afs/file.c b/fs/afs/file.c
index 9c0e721..aede7eb 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -32,7 +32,7 @@ const struct file_operations afs_file_operations = {
 	.aio_read	= generic_file_aio_read,
 	.aio_write	= afs_file_write,
 	.mmap		= generic_file_readonly_mmap,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 	.fsync		= afs_fsync,
 };
 
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 329ee47..521ff7c 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -114,12 +114,6 @@ static int bad_file_lock(struct file *file, int cmd, struct file_lock *fl)
 	return -EIO;
 }
 
-static ssize_t bad_file_sendfile(struct file *in_file, loff_t *ppos,
-			size_t count, read_actor_t actor, void *target)
-{
-	return -EIO;
-}
-
 static ssize_t bad_file_sendpage(struct file *file, struct page *page,
 			int off, size_t len, loff_t *pos, int more)
 {
@@ -182,7 +176,6 @@ static const struct file_operations bad_file_ops =
 	.aio_fsync	= bad_file_aio_fsync,
 	.fasync		= bad_file_fasync,
 	.lock		= bad_file_lock,
-	.sendfile	= bad_file_sendfile,
 	.sendpage	= bad_file_sendpage,
 	.get_unmapped_area = bad_file_get_unmapped_area,
 	.check_flags	= bad_file_check_flags,
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index ef4d1fa..24310e9 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -24,7 +24,7 @@ const struct file_operations bfs_file_operations = {
 	.write		= do_sync_write,
 	.aio_write	= generic_file_aio_write,
 	.mmap		= generic_file_mmap,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
 
 static int bfs_move_block(unsigned long from, unsigned long to, struct super_block *sb)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index ea1480a..b3e9bfa 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1346,7 +1346,6 @@ const struct file_operations def_blk_fops = {
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= compat_blkdev_ioctl,
 #endif
-	.sendfile	= generic_file_sendfile,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
 };
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index d38c69b..c05fa32 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -616,7 +616,7 @@ const struct file_operations cifs_file_ops = {
 	.fsync = cifs_fsync,
 	.flush = cifs_flush,
 	.mmap  = cifs_file_mmap,
-	.sendfile = generic_file_sendfile,
+	.splice_read = generic_file_splice_read,
 	.llseek = cifs_llseek,
 #ifdef CONFIG_CIFS_POSIX
 	.ioctl	= cifs_ioctl,
@@ -637,7 +637,7 @@ const struct file_operations cifs_file_direct_ops = {
 	.lock = cifs_lock,
 	.fsync = cifs_fsync,
 	.flush = cifs_flush,
-	.sendfile = generic_file_sendfile, /* BB removeme BB */
+	.splice_read = generic_file_splice_read,
 #ifdef CONFIG_CIFS_POSIX
 	.ioctl  = cifs_ioctl,
 #endif /* CONFIG_CIFS_POSIX */
@@ -656,7 +656,7 @@ const struct file_operations cifs_file_nobrl_ops = {
 	.fsync = cifs_fsync,
 	.flush = cifs_flush,
 	.mmap  = cifs_file_mmap,
-	.sendfile = generic_file_sendfile,
+	.splice_read = generic_file_splice_read,
 	.llseek = cifs_llseek,
 #ifdef CONFIG_CIFS_POSIX
 	.ioctl	= cifs_ioctl,
@@ -676,7 +676,7 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
 	.release = cifs_close,
 	.fsync = cifs_fsync,
 	.flush = cifs_flush,
-	.sendfile = generic_file_sendfile, /* BB removeme BB */
+	.splice_read = generic_file_splice_read,
 #ifdef CONFIG_CIFS_POSIX
 	.ioctl  = cifs_ioctl,
 #endif /* CONFIG_CIFS_POSIX */
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 5ef2b60..99dbe86 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -47,8 +47,9 @@ coda_file_read(struct file *coda_file, char __user *buf, size_t count, loff_t *p
 }
 
 static ssize_t
-coda_file_sendfile(struct file *coda_file, loff_t *ppos, size_t count,
-		   read_actor_t actor, void *target)
+coda_file_splice_read(struct file *coda_file, loff_t *ppos,
+		      struct pipe_inode_info *pipe, size_t count,
+		      unsigned int flags)
 {
 	struct coda_file_info *cfi;
 	struct file *host_file;
@@ -57,10 +58,10 @@ coda_file_sendfile(struct file *coda_file, loff_t *ppos, size_t count,
 	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
 	host_file = cfi->cfi_container;
 
-	if (!host_file->f_op || !host_file->f_op->sendfile)
+	if (!host_file->f_op || !host_file->f_op->splice_read)
 		return -EINVAL;
 
-	return host_file->f_op->sendfile(host_file, ppos, count, actor, target);
+	return host_file->f_op->splice_read(host_file, ppos, pipe, count,flags);
 }
 
 static ssize_t
@@ -295,6 +296,6 @@ const struct file_operations coda_file_operations = {
 	.flush		= coda_flush,
 	.release	= coda_release,
 	.fsync		= coda_fsync,
-	.sendfile	= coda_file_sendfile,
+	.splice_read	= coda_file_splice_read,
 };
 
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 59288d8..94f456f 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -338,16 +338,17 @@ static int ecryptfs_fasync(int fd, struct file *file, int flag)
 	return rc;
 }
 
-static ssize_t ecryptfs_sendfile(struct file *file, loff_t * ppos,
-				 size_t count, read_actor_t actor, void *target)
+static ssize_t ecryptfs_splice_read(struct file *file, loff_t * ppos,
+				    struct pipe_inode_info *pipe, size_t count,
+				    unsigned int flags)
 {
 	struct file *lower_file = NULL;
 	int rc = -EINVAL;
 
 	lower_file = ecryptfs_file_to_lower(file);
-	if (lower_file->f_op && lower_file->f_op->sendfile)
-		rc = lower_file->f_op->sendfile(lower_file, ppos, count,
-						actor, target);
+	if (lower_file->f_op && lower_file->f_op->splice_read)
+		rc = lower_file->f_op->splice_read(lower_file, ppos, pipe,
+						count, flags);
 
 	return rc;
 }
@@ -364,7 +365,7 @@ const struct file_operations ecryptfs_dir_fops = {
 	.release = ecryptfs_release,
 	.fsync = ecryptfs_fsync,
 	.fasync = ecryptfs_fasync,
-	.sendfile = ecryptfs_sendfile,
+	.splice_read = ecryptfs_splice_read,
 };
 
 const struct file_operations ecryptfs_main_fops = {
@@ -381,7 +382,7 @@ const struct file_operations ecryptfs_main_fops = {
 	.release = ecryptfs_release,
 	.fsync = ecryptfs_fsync,
 	.fasync = ecryptfs_fasync,
-	.sendfile = ecryptfs_sendfile,
+	.splice_read = ecryptfs_splice_read,
 };
 
 static int
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 566d4e2..a89edc9 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -53,7 +53,6 @@ const struct file_operations ext2_file_operations = {
 	.open		= generic_file_open,
 	.release	= ext2_release_file,
 	.fsync		= ext2_sync_file,
-	.sendfile	= generic_file_sendfile,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
 };
@@ -71,7 +70,9 @@ const struct file_operations ext2_xip_file_operations = {
 	.open		= generic_file_open,
 	.release	= ext2_release_file,
 	.fsync		= ext2_sync_file,
-	.sendfile	= xip_file_sendfile,
+#if 0
+	.splice_read	= xip_file_splice_read,
+#endif
 };
 #endif
 
diff --git a/fs/ext3/file.c b/fs/ext3/file.c
index 1e6f138..acc4913 100644
--- a/fs/ext3/file.c
+++ b/fs/ext3/file.c
@@ -120,7 +120,6 @@ const struct file_operations ext3_file_operations = {
 	.open		= generic_file_open,
 	.release	= ext3_release_file,
 	.fsync		= ext3_sync_file,
-	.sendfile	= generic_file_sendfile,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
 };
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 3c6c1fd..d4c8186 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -120,7 +120,6 @@ const struct file_operations ext4_file_operations = {
 	.open		= generic_file_open,
 	.release	= ext4_release_file,
 	.fsync		= ext4_sync_file,
-	.sendfile	= generic_file_sendfile,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
 };
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 55d3c74..69a83b5 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -134,7 +134,7 @@ const struct file_operations fat_file_operations = {
 	.release	= fat_file_release,
 	.ioctl		= fat_generic_ioctl,
 	.fsync		= file_fsync,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
 
 static int fat_cont_expand(struct inode *inode, loff_t size)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index adf7995..f79de7c 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -802,7 +802,7 @@ static const struct file_operations fuse_file_operations = {
 	.release	= fuse_release,
 	.fsync		= fuse_fsync,
 	.lock		= fuse_file_lock,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
 
 static const struct file_operations fuse_direct_io_file_operations = {
@@ -814,7 +814,7 @@ static const struct file_operations fuse_direct_io_file_operations = {
 	.release	= fuse_release,
 	.fsync		= fuse_fsync,
 	.lock		= fuse_file_lock,
-	/* no mmap and sendfile */
+	/* no mmap and splice_read */
 };
 
 static const struct address_space_operations fuse_file_aops  = {
diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index 064df88..7dc3be1 100644
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -635,7 +635,6 @@ const struct file_operations gfs2_file_fops = {
 	.release	= gfs2_close,
 	.fsync		= gfs2_fsync,
 	.lock		= gfs2_lock,
-	.sendfile	= generic_file_sendfile,
 	.flock		= gfs2_flock,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 9a934db..bc835f2 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -607,7 +607,7 @@ static const struct file_operations hfs_file_operations = {
 	.write		= do_sync_write,
 	.aio_write	= generic_file_aio_write,
 	.mmap		= generic_file_mmap,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 	.fsync		= file_fsync,
 	.open		= hfs_file_open,
 	.release	= hfs_file_release,
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 45dab5d..409ce54 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -288,7 +288,7 @@ static const struct file_operations hfsplus_file_operations = {
 	.write		= do_sync_write,
 	.aio_write	= generic_file_aio_write,
 	.mmap		= generic_file_mmap,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 	.fsync		= file_fsync,
 	.open		= hfsplus_file_open,
 	.release	= hfsplus_file_release,
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 8286491..c778620 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -390,7 +390,7 @@ int hostfs_fsync(struct file *file, struct dentry *dentry, int datasync)
 static const struct file_operations hostfs_file_fops = {
 	.llseek		= generic_file_llseek,
 	.read		= do_sync_read,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 	.aio_read	= generic_file_aio_read,
 	.aio_write	= generic_file_aio_write,
 	.write		= do_sync_write,
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index b4eafc0..5b53e5c 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -129,7 +129,7 @@ const struct file_operations hpfs_file_ops =
 	.mmap		= generic_file_mmap,
 	.release	= hpfs_file_release,
 	.fsync		= hpfs_file_fsync,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
 
 const struct inode_operations hpfs_file_iops =
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 9987127..c253019 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -47,7 +47,7 @@ const struct file_operations jffs2_file_operations =
 	.ioctl =	jffs2_ioctl,
 	.mmap =		generic_file_readonly_mmap,
 	.fsync =	jffs2_fsync,
-	.sendfile =	generic_file_sendfile
+	.splice_read =	generic_file_splice_read,
 };
 
 /* jffs2_file_inode_operations */
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index f7f8eff..87eb936 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -108,7 +108,6 @@ const struct file_operations jfs_file_operations = {
 	.aio_read	= generic_file_aio_read,
 	.aio_write	= generic_file_aio_write,
 	.mmap		= generic_file_mmap,
-	.sendfile	= generic_file_sendfile,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
 	.fsync		= jfs_fsync,
diff --git a/fs/minix/file.c b/fs/minix/file.c
index f92baa1..17765f6 100644
--- a/fs/minix/file.c
+++ b/fs/minix/file.c
@@ -23,7 +23,7 @@ const struct file_operations minix_file_operations = {
 	.aio_write	= generic_file_aio_write,
 	.mmap		= generic_file_mmap,
 	.fsync		= minix_sync_file,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
 
 const struct inode_operations minix_file_inode_operations = {
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 9eb8eb4..8689b73 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -41,7 +41,9 @@ static int nfs_file_open(struct inode *, struct file *);
 static int nfs_file_release(struct inode *, struct file *);
 static loff_t nfs_file_llseek(struct file *file, loff_t offset, int origin);
 static int  nfs_file_mmap(struct file *, struct vm_area_struct *);
-static ssize_t nfs_file_sendfile(struct file *, loff_t *, size_t, read_actor_t, void *);
+static ssize_t nfs_file_splice_read(struct file *filp, loff_t *ppos,
+					struct pipe_inode_info *pipe,
+					size_t count, unsigned int flags);
 static ssize_t nfs_file_read(struct kiocb *, const struct iovec *iov,
 				unsigned long nr_segs, loff_t pos);
 static ssize_t nfs_file_write(struct kiocb *, const struct iovec *iov,
@@ -65,7 +67,7 @@ const struct file_operations nfs_file_operations = {
 	.fsync		= nfs_fsync,
 	.lock		= nfs_lock,
 	.flock		= nfs_flock,
-	.sendfile	= nfs_file_sendfile,
+	.splice_read	= nfs_file_splice_read,
 	.check_flags	= nfs_check_flags,
 };
 
@@ -224,20 +226,21 @@ nfs_file_read(struct kiocb *iocb, const struct iovec *iov,
 }
 
 static ssize_t
-nfs_file_sendfile(struct file *filp, loff_t *ppos, size_t count,
-		read_actor_t actor, void *target)
+nfs_file_splice_read(struct file *filp, loff_t *ppos,
+		     struct pipe_inode_info *pipe, size_t count,
+		     unsigned int flags)
 {
 	struct dentry *dentry = filp->f_path.dentry;
 	struct inode *inode = dentry->d_inode;
 	ssize_t res;
 
-	dfprintk(VFS, "nfs: sendfile(%s/%s, %lu@%Lu)\n",
+	dfprintk(VFS, "nfs: splice_read(%s/%s, %lu@%Lu)\n",
 		dentry->d_parent->d_name.name, dentry->d_name.name,
 		(unsigned long) count, (unsigned long long) *ppos);
 
 	res = nfs_revalidate_mapping(inode, filp->f_mapping);
 	if (!res)
-		res = generic_file_sendfile(filp, ppos, count, actor, target);
+		res = generic_file_splice_read(filp, ppos, pipe, count, flags);
 	return res;
 }
 
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 7e6aa24..1676e34 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -805,6 +805,7 @@ found:
  * so that they can be passed to the netowork sendmsg/sendpage routines
  * directrly. They will be released after the sending has completed.
  */
+#if 0
 static int
 nfsd_read_actor(read_descriptor_t *desc, struct page *page, unsigned long offset , unsigned long size)
 {
@@ -836,6 +837,7 @@ nfsd_read_actor(read_descriptor_t *desc, struct page *page, unsigned long offset
 	desc->written += size;
 	return size;
 }
+#endif
 
 static __be32
 nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
@@ -861,16 +863,13 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
 	if (ra && ra->p_set)
 		file->f_ra = ra->p_ra;
 
-	if (file->f_op->sendfile && rqstp->rq_sendfile_ok) {
-		rqstp->rq_resused = 1;
-		host_err = file->f_op->sendfile(file, &offset, *count,
-						 nfsd_read_actor, rqstp);
-	} else {
-		oldfs = get_fs();
-		set_fs(KERNEL_DS);
-		host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset);
-		set_fs(oldfs);
-	}
+	/*
+	 * Can we use ->splice_read() for this?
+	 */
+	oldfs = get_fs();
+	set_fs(KERNEL_DS);
+	host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset);
+	set_fs(oldfs);
 
 	/* Write back readahead params */
 	if (ra) {
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 7ed5639..ffcc504 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -2276,7 +2276,7 @@ const struct file_operations ntfs_file_ops = {
 						    mounted filesystem. */
 	.mmap		= generic_file_mmap,	 /* Mmap file. */
 	.open		= ntfs_file_open,	 /* Open file. */
-	.sendfile	= generic_file_sendfile, /* Zero-copy data send with
+	.splice_read	= generic_file_splice_read /* Zero-copy data send with
 						    the data source being on
 						    the ntfs partition.  We do
 						    not need to care about the
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index ac6c964..84e2b1f 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1817,7 +1817,6 @@ const struct inode_operations ocfs2_special_file_iops = {
 const struct file_operations ocfs2_fops = {
 	.read		= do_sync_read,
 	.write		= do_sync_write,
-	.sendfile	= generic_file_sendfile,
 	.mmap		= ocfs2_mmap,
 	.fsync		= ocfs2_sync_file,
 	.release	= ocfs2_file_release,
diff --git a/fs/qnx4/file.c b/fs/qnx4/file.c
index 4464998..867f42b 100644
--- a/fs/qnx4/file.c
+++ b/fs/qnx4/file.c
@@ -25,7 +25,7 @@ const struct file_operations qnx4_file_operations =
 	.read		= do_sync_read,
 	.aio_read	= generic_file_aio_read,
 	.mmap		= generic_file_mmap,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 #ifdef CONFIG_QNX4FS_RW
 	.write		= do_sync_write,
 	.aio_write	= generic_file_aio_write,
diff --git a/fs/ramfs/file-mmu.c b/fs/ramfs/file-mmu.c
index 2f14774..97bdc0b 100644
--- a/fs/ramfs/file-mmu.c
+++ b/fs/ramfs/file-mmu.c
@@ -41,7 +41,7 @@ const struct file_operations ramfs_file_operations = {
 	.aio_write	= generic_file_aio_write,
 	.mmap		= generic_file_mmap,
 	.fsync		= simple_sync_file,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 	.llseek		= generic_file_llseek,
 };
 
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index 9345a46..69ff5f9 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -42,7 +42,7 @@ const struct file_operations ramfs_file_operations = {
 	.write			= do_sync_write,
 	.aio_write		= generic_file_aio_write,
 	.fsync			= simple_sync_file,
-	.sendfile		= generic_file_sendfile,
+	.splice_read		= generic_file_splice_read,
 	.llseek			= generic_file_llseek,
 };
 
diff --git a/fs/read_write.c b/fs/read_write.c
index 4d03008..cb4f456 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/syscalls.h>
 #include <linux/pagemap.h>
+#include <linux/pipe_fs_i.h>
 #include "read_write.h"
 
 #include <asm/uaccess.h>
@@ -25,7 +26,7 @@ const struct file_operations generic_ro_fops = {
 	.read		= do_sync_read,
 	.aio_read	= generic_file_aio_read,
 	.mmap		= generic_file_readonly_mmap,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
 
 EXPORT_SYMBOL(generic_ro_fops);
@@ -708,7 +709,7 @@ static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
 	struct inode * in_inode, * out_inode;
 	loff_t pos;
 	ssize_t retval;
-	int fput_needed_in, fput_needed_out;
+	int fput_needed_in, fput_needed_out, fl;
 
 	/*
 	 * Get input file, and verify that it is ok..
@@ -723,7 +724,7 @@ static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
 	in_inode = in_file->f_path.dentry->d_inode;
 	if (!in_inode)
 		goto fput_in;
-	if (!in_file->f_op || !in_file->f_op->sendfile)
+	if (!in_file->f_op || !in_file->f_op->splice_read)
 		goto fput_in;
 	retval = -ESPIPE;
 	if (!ppos)
@@ -776,7 +777,11 @@ static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
 		count = max - pos;
 	}
 
-	retval = in_file->f_op->sendfile(in_file, ppos, count, file_send_actor, out_file);
+	fl = 0;
+	if (in_file->f_flags & O_NONBLOCK)
+		fl = SPLICE_F_NONBLOCK;
+
+	retval = do_splice_direct(in_file, ppos, out_file, count, fl);
 
 	if (retval > 0) {
 		add_rchar(current, retval);
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 9e451a6..30eebfb 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -1531,7 +1531,6 @@ const struct file_operations reiserfs_file_operations = {
 	.open = generic_file_open,
 	.release = reiserfs_file_release,
 	.fsync = reiserfs_sync_file,
-	.sendfile = generic_file_sendfile,
 	.aio_read = generic_file_aio_read,
 	.aio_write = generic_file_aio_write,
 	.splice_read = generic_file_splice_read,
diff --git a/fs/smbfs/file.c b/fs/smbfs/file.c
index aea3f8a..c5d78a7 100644
--- a/fs/smbfs/file.c
+++ b/fs/smbfs/file.c
@@ -262,8 +262,9 @@ out:
 }
 
 static ssize_t
-smb_file_sendfile(struct file *file, loff_t *ppos,
-		  size_t count, read_actor_t actor, void *target)
+smb_file_splice_read(struct file *file, loff_t *ppos,
+		     struct pipe_inode_info *pipe, size_t count,
+		     unsigned int flags)
 {
 	struct dentry *dentry = file->f_path.dentry;
 	ssize_t status;
@@ -277,7 +278,7 @@ smb_file_sendfile(struct file *file, loff_t *ppos,
 			 DENTRY_PATH(dentry), status);
 		goto out;
 	}
-	status = generic_file_sendfile(file, ppos, count, actor, target);
+	status = generic_file_splice_read(file, ppos, pipe, count, flags);
 out:
 	return status;
 }
@@ -416,7 +417,7 @@ const struct file_operations smb_file_operations =
 	.open		= smb_file_open,
 	.release	= smb_file_release,
 	.fsync		= smb_fsync,
-	.sendfile	= smb_file_sendfile,
+	.splice_read	= smb_file_splice_read,
 };
 
 const struct inode_operations smb_file_inode_operations =
diff --git a/fs/sysv/file.c b/fs/sysv/file.c
index 0732ddb..589be21 100644
--- a/fs/sysv/file.c
+++ b/fs/sysv/file.c
@@ -27,7 +27,7 @@ const struct file_operations sysv_file_operations = {
 	.aio_write	= generic_file_aio_write,
 	.mmap		= generic_file_mmap,
 	.fsync		= sysv_sync_file,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
 
 const struct inode_operations sysv_file_inode_operations = {
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 51b5764..df070be 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -261,7 +261,7 @@ const struct file_operations udf_file_operations = {
 	.aio_write		= udf_file_aio_write,
 	.release		= udf_release_file,
 	.fsync			= udf_fsync_file,
-	.sendfile		= generic_file_sendfile,
+	.splice_read		= generic_file_splice_read,
 };
 
 const struct inode_operations udf_file_inode_operations = {
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index 1e09632..6705d74 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -60,5 +60,5 @@ const struct file_operations ufs_file_operations = {
 	.mmap		= generic_file_mmap,
 	.open           = generic_file_open,
 	.fsync		= ufs_sync_file,
-	.sendfile	= generic_file_sendfile,
+	.splice_read	= generic_file_splice_read,
 };
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index cb51dc9..8c43cd2 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -124,30 +124,6 @@ xfs_file_aio_write_invis(
 }
 
 STATIC ssize_t
-xfs_file_sendfile(
-	struct file		*filp,
-	loff_t			*pos,
-	size_t			count,
-	read_actor_t		actor,
-	void			*target)
-{
-	return bhv_vop_sendfile(vn_from_inode(filp->f_path.dentry->d_inode),
-				filp, pos, 0, count, actor, target, NULL);
-}
-
-STATIC ssize_t
-xfs_file_sendfile_invis(
-	struct file		*filp,
-	loff_t			*pos,
-	size_t			count,
-	read_actor_t		actor,
-	void			*target)
-{
-	return bhv_vop_sendfile(vn_from_inode(filp->f_path.dentry->d_inode),
-				filp, pos, IO_INVIS, count, actor, target, NULL);
-}
-
-STATIC ssize_t
 xfs_file_splice_read(
 	struct file		*infilp,
 	loff_t			*ppos,
@@ -452,7 +428,6 @@ const struct file_operations xfs_file_operations = {
 	.write		= do_sync_write,
 	.aio_read	= xfs_file_aio_read,
 	.aio_write	= xfs_file_aio_write,
-	.sendfile	= xfs_file_sendfile,
 	.splice_read	= xfs_file_splice_read,
 	.splice_write	= xfs_file_splice_write,
 	.unlocked_ioctl	= xfs_file_ioctl,
@@ -475,7 +450,6 @@ const struct file_operations xfs_invis_file_operations = {
 	.write		= do_sync_write,
 	.aio_read	= xfs_file_aio_read_invis,
 	.aio_write	= xfs_file_aio_write_invis,
-	.sendfile	= xfs_file_sendfile_invis,
 	.splice_read	= xfs_file_splice_read_invis,
 	.splice_write	= xfs_file_splice_write_invis,
 	.unlocked_ioctl	= xfs_file_ioctl_invis,
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 715adad..af24a45 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -101,7 +101,6 @@
  * Feature macros (disable/enable)
  */
 #undef  HAVE_REFCACHE	/* reference cache not needed for NFS in 2.6 */
-#define HAVE_SENDFILE	/* sendfile(2) exists in 2.6, but not in 2.4 */
 #define HAVE_SPLICE	/* a splice(2) exists in 2.6, but not in 2.4 */
 #ifdef CONFIG_SMP
 #define HAVE_PERCPU_SB	/* per cpu superblock counters are a 2.6 feature */
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 86fb671..23978d3 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -287,50 +287,6 @@ xfs_read(
 }
 
 ssize_t
-xfs_sendfile(
-	bhv_desc_t		*bdp,
-	struct file		*filp,
-	loff_t			*offset,
-	int			ioflags,
-	size_t			count,
-	read_actor_t		actor,
-	void			*target,
-	cred_t			*credp)
-{
-	xfs_inode_t		*ip = XFS_BHVTOI(bdp);
-	xfs_mount_t		*mp = ip->i_mount;
-	ssize_t			ret;
-
-	XFS_STATS_INC(xs_read_calls);
-	if (XFS_FORCED_SHUTDOWN(mp))
-		return -EIO;
-
-	xfs_ilock(ip, XFS_IOLOCK_SHARED);
-
-	if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_READ) &&
-	    (!(ioflags & IO_INVIS))) {
-		bhv_vrwlock_t locktype = VRWLOCK_READ;
-		int error;
-
-		error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp),
-				      *offset, count,
-				      FILP_DELAY_FLAG(filp), &locktype);
-		if (error) {
-			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
-			return -error;
-		}
-	}
-	xfs_rw_enter_trace(XFS_SENDFILE_ENTER, &ip->i_iocore,
-		   (void *)(unsigned long)target, count, *offset, ioflags);
-	ret = generic_file_sendfile(filp, offset, count, actor, target);
-	if (ret > 0)
-		XFS_STATS_ADD(xs_read_bytes, ret);
-
-	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
-	return ret;
-}
-
-ssize_t
 xfs_splice_read(
 	bhv_desc_t		*bdp,
 	struct file		*infilp,
diff --git a/fs/xfs/linux-2.6/xfs_lrw.h b/fs/xfs/linux-2.6/xfs_lrw.h
index 7ac51b1..7c60a1e 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.h
+++ b/fs/xfs/linux-2.6/xfs_lrw.h
@@ -90,9 +90,6 @@ extern ssize_t xfs_read(struct bhv_desc *, struct kiocb *,
 extern ssize_t xfs_write(struct bhv_desc *, struct kiocb *,
 				const struct iovec *, unsigned int,
 				loff_t *, int, struct cred *);
-extern ssize_t xfs_sendfile(struct bhv_desc *, struct file *,
-				loff_t *, int, size_t, read_actor_t,
-				void *, struct cred *);
 extern ssize_t xfs_splice_read(struct bhv_desc *, struct file *, loff_t *,
 				struct pipe_inode_info *, size_t, int, int,
 				struct cred *);
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index d1b2d01..013048a 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -139,9 +139,6 @@ typedef ssize_t (*vop_read_t)(bhv_desc_t *, struct kiocb *,
 typedef ssize_t (*vop_write_t)(bhv_desc_t *, struct kiocb *,
 				const struct iovec *, unsigned int,
 				loff_t *, int, struct cred *);
-typedef ssize_t (*vop_sendfile_t)(bhv_desc_t *, struct file *,
-				loff_t *, int, size_t, read_actor_t,
-				void *, struct cred *);
 typedef ssize_t (*vop_splice_read_t)(bhv_desc_t *, struct file *, loff_t *,
 				struct pipe_inode_info *, size_t, int, int,
 				struct cred *);
@@ -206,7 +203,6 @@ typedef struct bhv_vnodeops {
 	vop_close_t		vop_close;
 	vop_read_t		vop_read;
 	vop_write_t		vop_write;
-	vop_sendfile_t		vop_sendfile;
 	vop_splice_read_t	vop_splice_read;
 	vop_splice_write_t	vop_splice_write;
 	vop_ioctl_t		vop_ioctl;
@@ -254,8 +250,6 @@ typedef struct bhv_vnodeops {
 		VOP(vop_read, vp)(VNHEAD(vp),file,iov,segs,offset,ioflags,cr)
 #define bhv_vop_write(vp,file,iov,segs,offset,ioflags,cr)		\
 		VOP(vop_write, vp)(VNHEAD(vp),file,iov,segs,offset,ioflags,cr)
-#define bhv_vop_sendfile(vp,f,off,ioflags,cnt,act,targ,cr)		\
-		VOP(vop_sendfile, vp)(VNHEAD(vp),f,off,ioflags,cnt,act,targ,cr)
 #define bhv_vop_splice_read(vp,f,o,pipe,cnt,fl,iofl,cr)			\
 		VOP(vop_splice_read, vp)(VNHEAD(vp),f,o,pipe,cnt,fl,iofl,cr)
 #define bhv_vop_splice_write(vp,f,o,pipe,cnt,fl,iofl,cr)		\
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index de17aed..70bc82f 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -4680,9 +4680,6 @@ bhv_vnodeops_t xfs_vnodeops = {
 	.vop_open		= xfs_open,
 	.vop_close		= xfs_close,
 	.vop_read		= xfs_read,
-#ifdef HAVE_SENDFILE
-	.vop_sendfile		= xfs_sendfile,
-#endif
 #ifdef HAVE_SPLICE
 	.vop_splice_read	= xfs_splice_read,
 	.vop_splice_write	= xfs_splice_write,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7cf0c54..4c73cd6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1104,7 +1104,6 @@ struct file_operations {
 	int (*aio_fsync) (struct kiocb *, int datasync);
 	int (*fasync) (int, struct file *, int);
 	int (*lock) (struct file *, int, struct file_lock *);
-	ssize_t (*sendfile) (struct file *, loff_t *, size_t, read_actor_t, void *);
 	ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int);
 	unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
 	int (*check_flags)(int);
@@ -1734,7 +1733,6 @@ extern ssize_t generic_file_buffered_write(struct kiocb *, const struct iovec *,
 		unsigned long, loff_t, loff_t *, size_t, ssize_t);
 extern ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos);
 extern ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos);
-extern ssize_t generic_file_sendfile(struct file *, loff_t *, size_t, read_actor_t, void *);
 extern void do_generic_mapping_read(struct address_space *mapping,
 				    struct file_ra_state *, struct file *,
 				    loff_t *, read_descriptor_t *, read_actor_t);
@@ -1764,9 +1762,6 @@ extern int nonseekable_open(struct inode * inode, struct file * filp);
 #ifdef CONFIG_FS_XIP
 extern ssize_t xip_file_read(struct file *filp, char __user *buf, size_t len,
 			     loff_t *ppos);
-extern ssize_t xip_file_sendfile(struct file *in_file, loff_t *ppos,
-				 size_t count, read_actor_t actor,
-				 void *target);
 extern int xip_file_mmap(struct file * file, struct vm_area_struct * vma);
 extern ssize_t xip_file_write(struct file *filp, const char __user *buf,
 			      size_t len, loff_t *ppos);
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 4a7ae8a..129d50f 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -253,7 +253,7 @@ struct svc_rqst {
 						 * determine what device number
 						 * to report (real or virtual)
 						 */
-	int			rq_sendfile_ok; /* turned off in gss privacy
+	int			rq_splice_ok;   /* turned off in gss privacy
 						 * to prevent encrypting page
 						 * cache pages */
 	wait_queue_head_t	rq_wait;	/* synchronization */
diff --git a/kernel/relay.c b/kernel/relay.c
index 4311101..86a6579 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -1060,21 +1060,6 @@ static ssize_t relay_file_read(struct file *filp,
 				       NULL, &desc);
 }
 
-static ssize_t relay_file_sendfile(struct file *filp,
-				   loff_t *ppos,
-				   size_t count,
-				   read_actor_t actor,
-				   void *target)
-{
-	read_descriptor_t desc;
-	desc.written = 0;
-	desc.count = count;
-	desc.arg.data = target;
-	desc.error = 0;
-	return relay_file_read_subbufs(filp, ppos, subbuf_send_actor,
-				       actor, &desc);
-}
-
 const struct file_operations relay_file_operations = {
 	.open		= relay_file_open,
 	.poll		= relay_file_poll,
@@ -1082,7 +1067,6 @@ const struct file_operations relay_file_operations = {
 	.read		= relay_file_read,
 	.llseek		= no_llseek,
 	.release	= relay_file_release,
-	.sendfile       = relay_file_sendfile,
 };
 EXPORT_SYMBOL_GPL(relay_file_operations);
 
diff --git a/mm/filemap.c b/mm/filemap.c
index edb1b0b..14ad45a 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1245,26 +1245,6 @@ int file_send_actor(read_descriptor_t * desc, struct page *page, unsigned long o
 	return written;
 }
 
-ssize_t generic_file_sendfile(struct file *in_file, loff_t *ppos,
-			 size_t count, read_actor_t actor, void *target)
-{
-	read_descriptor_t desc;
-
-	if (!count)
-		return 0;
-
-	desc.written = 0;
-	desc.count = count;
-	desc.arg.data = target;
-	desc.error = 0;
-
-	do_generic_file_read(in_file, ppos, &desc, actor);
-	if (desc.written)
-		return desc.written;
-	return desc.error;
-}
-EXPORT_SYMBOL(generic_file_sendfile);
-
 static ssize_t
 do_readahead(struct address_space *mapping, struct file *filp,
 	     unsigned long index, unsigned long nr)
diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c
index fa360e5..e85bade 100644
--- a/mm/filemap_xip.c
+++ b/mm/filemap_xip.c
@@ -159,6 +159,7 @@ xip_file_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos)
 }
 EXPORT_SYMBOL_GPL(xip_file_read);
 
+#if 0
 ssize_t
 xip_file_sendfile(struct file *in_file, loff_t *ppos,
 	     size_t count, read_actor_t actor, void *target)
@@ -180,6 +181,7 @@ xip_file_sendfile(struct file *in_file, loff_t *ppos,
 	return desc.error;
 }
 EXPORT_SYMBOL_GPL(xip_file_sendfile);
+#endif
 
 /*
  * __xip_unmap is invoked from xip_unmap and
diff --git a/mm/shmem.c b/mm/shmem.c
index e537317..71f480b 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1483,6 +1483,17 @@ static const struct inode_operations shmem_symlink_inode_operations;
 static const struct inode_operations shmem_symlink_inline_operations;
 
 /*
+ * FIXME: need a real implementation :-)
+ */
+static ssize_t
+shmem_file_splice_read(struct file *in, loff_t *ppos,
+		       struct pipe_inode_info *pipe, size_t len,
+		       unsigned int flags)
+{
+	return -EINVAL;
+}
+
+/*
  * Normally tmpfs makes no use of shmem_prepare_write, but it
  * lets a tmpfs file be used read-write below the loop driver.
  */
@@ -1709,25 +1720,6 @@ static ssize_t shmem_file_read(struct file *filp, char __user *buf, size_t count
 	return desc.error;
 }
 
-static ssize_t shmem_file_sendfile(struct file *in_file, loff_t *ppos,
-			 size_t count, read_actor_t actor, void *target)
-{
-	read_descriptor_t desc;
-
-	if (!count)
-		return 0;
-
-	desc.written = 0;
-	desc.count = count;
-	desc.arg.data = target;
-	desc.error = 0;
-
-	do_shmem_file_read(in_file, ppos, &desc, actor);
-	if (desc.written)
-		return desc.written;
-	return desc.error;
-}
-
 static int shmem_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
 	struct shmem_sb_info *sbinfo = SHMEM_SB(dentry->d_sb);
@@ -2397,7 +2389,7 @@ static const struct file_operations shmem_file_operations = {
 	.read		= shmem_file_read,
 	.write		= shmem_file_write,
 	.fsync		= simple_sync_file,
-	.sendfile	= shmem_file_sendfile,
+	.splice_read	= shmem_file_splice_read,
 #endif
 };
 
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 099a983..c094583 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -853,7 +853,7 @@ unwrap_priv_data(struct svc_rqst *rqstp, struct xdr_buf *buf, u32 seq, struct gs
 	u32 priv_len, maj_stat;
 	int pad, saved_len, remaining_len, offset;
 
-	rqstp->rq_sendfile_ok = 0;
+	rqstp->rq_splice_ok = 0;
 
 	priv_len = svc_getnl(&buf->head[0]);
 	if (rqstp->rq_deferred) {
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index e673ef9..55ea6df 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -814,7 +814,7 @@ svc_process(struct svc_rqst *rqstp)
 	rqstp->rq_res.tail[0].iov_base = NULL;
 	rqstp->rq_res.tail[0].iov_len = 0;
 	/* Will be turned off only in gss privacy case: */
-	rqstp->rq_sendfile_ok = 1;
+	rqstp->rq_splice_ok = 1;
 	/* tcp needs a space for the record length... */
 	if (rqstp->rq_prot == IPPROTO_TCP)
 		svc_putnl(resv, 0);

-- 
Jens Axboe