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ovl: During copy up, first copy up metadata and then data 

Just a little re-ordering of code.  This helps with next patch where after
copying up metadata, we skip data copying step, if needed.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Vivek Goyal 2018-05-11 11:49:27 -04:00 committed by Miklos Szeredi
parent d5791044d2
commit bd64e57586
1 changed files with 17 additions and 19 deletions
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36
fs/overlayfs/copy_up.c
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@ -490,28 +490,10 @@ static int ovl_copy_up_inode(struct ovl_copy_up_ctx *c, struct dentry *temp)
{
int err;
if (S_ISREG(c->stat.mode)) {
struct path upperpath;
ovl_path_upper(c->dentry, &upperpath);
BUG_ON(upperpath.dentry != NULL);
upperpath.dentry = temp;
err = ovl_copy_up_data(&c->lowerpath, &upperpath, c->stat.size);
if (err)
return err;
}
err = ovl_copy_xattr(c->lowerpath.dentry, temp);
if (err)
return err;
inode_lock(temp->d_inode);
err = ovl_set_attr(temp, &c->stat);
inode_unlock(temp->d_inode);
if (err)
return err;
/*
* Store identifier of lower inode in upper inode xattr to
* allow lookup of the copy up origin inode.
@ -525,7 +507,23 @@ static int ovl_copy_up_inode(struct ovl_copy_up_ctx *c, struct dentry *temp)
return err;
}
return 0;
if (S_ISREG(c->stat.mode)) {
struct path upperpath;
ovl_path_upper(c->dentry, &upperpath);
BUG_ON(upperpath.dentry != NULL);
upperpath.dentry = temp;
err = ovl_copy_up_data(&c->lowerpath, &upperpath, c->stat.size);
if (err)
return err;
}
inode_lock(temp->d_inode);
err = ovl_set_attr(temp, &c->stat);
inode_unlock(temp->d_inode);
return err;
}
static int ovl_copy_up_locked(struct ovl_copy_up_ctx *c)