[PATCH 2/2] overlayfs -- follow change to do_splice_direct interface

From: Andy Whitcroft
Date: Thu Jun 27 2013 - 12:27:05 EST


The commit below changed the interface to do_splice_direct, follow that
change in copy_up:

commit 7995bd287134f6c8f80d94bebe7396f05a9bc42b
Author: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Thu Jun 20 18:58:36 2013 +0400

splice: don't pass the address of ->f_pos to methods

Signed-off-by: Andy Whitcroft <apw@xxxxxxxxxxxxx>
---
fs/overlayfs/copy_up.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index eef85e0..8e1b09f 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -90,9 +90,10 @@ static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len)

/* FIXME: copy up sparse files efficiently */
while (len) {
- loff_t offset = new_file->f_pos;
size_t this_len = OVL_COPY_UP_CHUNK_SIZE;
long bytes;
+ loff_t pos = old_file->f_pos;
+ loff_t out_pos = new_file->f_pos;

if (len < this_len)
this_len = len;
@@ -102,7 +103,7 @@ static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len)
break;
}

- bytes = do_splice_direct(old_file, &offset, new_file, this_len,
+ bytes = do_splice_direct(old_file, &pos, new_file, &out_pos, this_len,
SPLICE_F_MOVE);
if (bytes <= 0) {
error = bytes;
--
1.8.3.1

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