Commit d1e6f6a9 authored by Vivek Goyal's avatar Vivek Goyal Committed by Miklos Szeredi
Browse files

ovl: add helper to force data copy-up 



Signed-off-by: default avatarVivek Goyal <vgoyal@redhat.com>
Reviewed-by: default avatarAmir Goldstein <amir73il@gmail.com>
Signed-off-by: default avatarMiklos Szeredi <mszeredi@redhat.com>
parent 0a2d0d3f

fs/overlayfs/copy_up.c

+5 −0
Original line number Diff line number Diff line
@@ -867,6 +867,11 @@ int ovl_open_maybe_copy_up(struct dentry *dentry, unsigned int file_flags) 
	return err;

}



int ovl_copy_up_with_data(struct dentry *dentry)

{

	return ovl_copy_up_flags(dentry, O_WRONLY);

}



int ovl_copy_up(struct dentry *dentry)

{

	return ovl_copy_up_flags(dentry, 0);

fs/overlayfs/overlayfs.h

+1 −0
Original line number Diff line number Diff line
@@ -407,6 +407,7 @@ extern const struct file_operations ovl_file_operations; 


/* copy_up.c */

int ovl_copy_up(struct dentry *dentry);

int ovl_copy_up_with_data(struct dentry *dentry);

int ovl_copy_up_flags(struct dentry *dentry, int flags);

int ovl_open_maybe_copy_up(struct dentry *dentry, unsigned int file_flags);

int ovl_copy_xattr(struct dentry *old, struct dentry *new);