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path: root/fs/overlayfs/file.c
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Diffstat (limited to 'fs/overlayfs/file.c')
-rw-r--r--fs/overlayfs/file.c33
1 files changed, 13 insertions, 20 deletions
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 1b578cb27a26..69b52d2f9c74 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -9,7 +9,6 @@
#include <linux/xattr.h>
#include <linux/uio.h>
#include <linux/uaccess.h>
-#include <linux/splice.h>
#include <linux/security.h>
#include <linux/mm.h>
#include <linux/fs.h>
@@ -332,20 +331,21 @@ static ssize_t ovl_splice_read(struct file *in, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
- const struct cred *old_cred;
struct fd real;
ssize_t ret;
+ struct backing_file_ctx ctx = {
+ .cred = ovl_creds(file_inode(in)->i_sb),
+ .user_file = in,
+ .accessed = ovl_file_accessed,
+ };
ret = ovl_real_fdget(in, &real);
if (ret)
return ret;
- old_cred = ovl_override_creds(file_inode(in)->i_sb);
- ret = vfs_splice_read(real.file, ppos, pipe, len, flags);
- revert_creds(old_cred);
- ovl_file_accessed(in);
-
+ ret = backing_file_splice_read(real.file, ppos, pipe, len, flags, &ctx);
fdput(real);
+
return ret;
}
@@ -361,30 +361,23 @@ static ssize_t ovl_splice_write(struct pipe_inode_info *pipe, struct file *out,
loff_t *ppos, size_t len, unsigned int flags)
{
struct fd real;
- const struct cred *old_cred;
struct inode *inode = file_inode(out);
ssize_t ret;
+ struct backing_file_ctx ctx = {
+ .cred = ovl_creds(inode->i_sb),
+ .user_file = out,
+ .end_write = ovl_file_modified,
+ };
inode_lock(inode);
/* Update mode */
ovl_copyattr(inode);
- ret = file_remove_privs(out);
- if (ret)
- goto out_unlock;
ret = ovl_real_fdget(out, &real);
if (ret)
goto out_unlock;
- old_cred = ovl_override_creds(inode->i_sb);
- file_start_write(real.file);
-
- ret = iter_file_splice_write(pipe, real.file, ppos, len, flags);
-
- file_end_write(real.file);
- /* Update size */
- ovl_file_modified(out);
- revert_creds(old_cred);
+ ret = backing_file_splice_write(pipe, real.file, ppos, len, flags, &ctx);
fdput(real);
out_unlock: