Remove remnants of sendfile()

There are now zero users of .sendfile() in the kernel, so kill
it from the file_operations structure and in do_sendfile().

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

2 files changed, 12 insertions, 17 deletions

diff --git a/fs/read_write.c b/fs/read_write.c
index 2527cf035b0e..507ddff48a9a 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -724,8 +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 &&
-            !in_file->f_op->splice_read))
+        if (!in_file->f_op || !in_file->f_op->splice_read)
                 goto fput_in;
         retval = -ESPIPE;
         if (!ppos)
@@ -778,21 +777,18 @@ static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
                 count = max - pos;
         }
 
-        if (in_file->f_op->splice_read) {
-                fl = 0;
+        fl = 0;
 #if 0
-                /*
-                 * We need to debate whether we can enable this or not. The
-                 * man page documents EAGAIN return for the output at least,
-                 * and the application is arguably buggy if it doesn't expect
-                 * EAGAIN on a non-blocking file descriptor.
-                 */
-                if (in_file->f_flags & O_NONBLOCK)
-                        fl = SPLICE_F_NONBLOCK;
+        /*
+         * We need to debate whether we can enable this or not. The
+         * man page documents EAGAIN return for the output at least,
+         * and the application is arguably buggy if it doesn't expect
+         * EAGAIN on a non-blocking file descriptor.
+         */
+        if (in_file->f_flags & O_NONBLOCK)
+                fl = SPLICE_F_NONBLOCK;
 #endif
-                retval = do_splice_direct(in_file, ppos, out_file, count, fl);
-        } else
-                retval = in_file->f_op->sendfile(in_file, ppos, count, file_send_actor, out_file);
+        retval = do_splice_direct(in_file, ppos, out_file, count, fl);
 
         if (retval > 0) {
                 add_rchar(current, retval);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 894620e9402c..4f0b3bf5983c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1054,7 +1054,7 @@ struct block_device_operations {
 };
 
 /*
- * "descriptor" for what we're up to with a read for sendfile().
+ * "descriptor" for what we're up to with a read.
  * This allows us to use the same read code yet
  * have multiple different users of the data that
  * we read from a file.
@@ -1105,7 +1105,6 @@ 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);