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ovl: allow statfs if no upper layer

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Handle "no upper layer" case in statfs.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
This commit is contained in:
Miklos Szeredi 2014-12-13 00:59:46 +01:00
parent 09e10322b7
commit 4ebc581828
1 changed files with 2 additions and 2 deletions
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4
fs/overlayfs/super.c
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@ -484,7 +484,7 @@ static void ovl_put_super(struct super_block *sb)
* @buf: The struct kstatfs to fill in with stats
*
* Get the filesystem statistics. As writes always target the upper layer
* filesystem pass the statfs to the same filesystem.
* filesystem pass the statfs to the upper filesystem (if it exists)
*/
static int ovl_statfs(struct dentry *dentry, struct kstatfs *buf)
{
@ -493,7 +493,7 @@ static int ovl_statfs(struct dentry *dentry, struct kstatfs *buf)
struct path path;
int err;
ovl_path_upper(root_dentry, &path);
ovl_path_real(root_dentry, &path);
err = vfs_statfs(&path, buf);
if (!err) {