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 cb51dc961355..8c43cd2e237a 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 715adad7dd4d..af24a457d3a3 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 ed90403f0ee7..765ec16a6e39 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 7ac51b1d2161..7c60a1eed88b 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 d1b2d01843d1..013048a92643 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 de17aed578f0..70bc82f65311 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,