sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

They can use generic_file_splice_read() instead. Since sys_sendfile() now
prefers that, there should be no change in behaviour.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

6 files changed, 0 insertions, 83 deletions

diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index cb51dc96135..8c43cd2e237 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 715adad7dd4..af24a457d3a 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 ed90403f0ee..765ec16a6e3 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 7ac51b1d216..7c60a1eed88 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 d1b2d01843d..013048a9264 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 de17aed578f..70bc82f6531 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,