From: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
---
fs/overlayfs/copy_up.c | 2 +-
fs/read_write.c | 10 ++++++----
include/linux/fs.h | 2 ++
3 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index 8bede0742619..6634a85255ae 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -175,7 +175,7 @@ static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len)
break;
}
- bytes = do_splice_direct(old_file, &old_pos,
+ bytes = splice_with_holes(old_file, &old_pos,
new_file, &new_pos,
this_len, SPLICE_F_MOVE);
if (bytes <= 0) {
diff --git a/fs/read_write.c b/fs/read_write.c
index 6866e2a27594..0aa8390d4d39 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1543,8 +1543,9 @@ COMPAT_SYSCALL_DEFINE4(sendfile64, int, out_fd, int, in_fd,
#endif
-static ssize_t splice_with_holes(struct file *file_in, loff_t *pos_in,
- struct file *file_out, loff_t *pos_out, size_t len)
+ssize_t splice_with_holes(struct file *file_in, loff_t *pos_in,
+ struct file *file_out, loff_t *pos_out, size_t len,
+ unsigned int flags)
{
ssize_t ret = 0, total = 0;
loff_t size, end;
@@ -1556,7 +1557,7 @@ static ssize_t splice_with_holes(struct file *file_in, loff_t *pos_in,
size = end - *pos_in;
splice:
ret = do_splice_direct(file_in, pos_in, file_out, pos_out,
- size, 0);
+ size, flags);
if (ret < 0)
goto out;
total += ret;
@@ -1598,6 +1599,7 @@ static ssize_t splice_with_holes(struct file *file_in, loff_t *pos_in,
out:
return total ? total : ret;
}
+EXPORT_SYMBOL(splice_with_holes);
/*
* copy_file_range() differs from regular file read and write in that it
@@ -1663,7 +1665,7 @@ ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,
do_splice:
ret = splice_with_holes(file_in, &pos_in, file_out, &pos_out,
- len > MAX_RW_COUNT ? MAX_RW_COUNT : len);
+ len > MAX_RW_COUNT ? MAX_RW_COUNT : len, 0);
done:
if (ret > 0) {
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 760d8da1b6c7..8f96400ab944 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1799,6 +1799,8 @@ extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
unsigned long, loff_t *, rwf_t);
+extern ssize_t splice_with_holes(struct file *, loff_t *, struct file *,
+ loff_t *, size_t, unsigned int);
extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
loff_t, size_t, unsigned int);
extern int vfs_clone_file_prep_inodes(struct inode *inode_in, loff_t pos_in,
--
2.16.3
