int au_cpdown_dirs(struct dentry *dentry, aufs_bindex_t bdst)
{
int err;
struct au_cpdown_dir_args args = {
.parent = dget_parent(dentry),
.flags = 0
};
err = au_cp_dirs(dentry, bdst, au_cpdown_dir, &args);
dput(args.parent);
return err;
}
/* ---------------------------------------------------------------------- */
/* policies for create */
static int au_wbr_nonopq(struct dentry *dentry, aufs_bindex_t bindex)
{
int err, i, j, ndentry;
aufs_bindex_t bopq;
struct au_dcsub_pages dpages;
struct au_dpage *dpage;
struct dentry **dentries, *parent, *d;
err = au_dpages_init(&dpages, GFP_NOFS);
if (unlikely(err))
goto out;
parent = dget_parent(dentry);
err = au_dcsub_pages_rev(&dpages, parent, /*do_include*/0, /*test*/NULL,
/*arg*/NULL);
if (unlikely(err))
goto out_free;
err = bindex;
for (i = 0; i < dpages.ndpage; i++) {
dpage = dpages.dpages + i;
dentries = dpage->dentries;
ndentry = dpage->ndentry;
for (j = 0; j < ndentry; j++) {
d = dentries[j];
di_read_lock_parent2(d, !AuLock_IR);
bopq = au_dbdiropq(d);
di_read_unlock(d, !AuLock_IR);
if (bopq >= 0 && bopq < err)
err = bopq;
}
}
out_free:
dput(parent);
au_dpages_free(&dpages);
out:
return err;
}
static int au_wbr_nonopq(struct dentry *dentry, aufs_bindex_t bindex)
{
int err, i, j, ndentry;
aufs_bindex_t bopq;
struct au_dcsub_pages dpages;
struct au_dpage *dpage;
struct dentry **dentries, *parent, *d;
err = au_dpages_init(&dpages, GFP_NOFS);
if (unlikely(err))
goto out;
parent = dget_parent(dentry);
err = au_dcsub_pages_rev_aufs(&dpages, parent, /*do_include*/0);
if (unlikely(err))
goto out_free;
err = bindex;
for (i = 0; i < dpages.ndpage; i++) {
dpage = dpages.dpages + i;
dentries = dpage->dentries;
ndentry = dpage->ndentry;
for (j = 0; j < ndentry; j++) {
d = dentries[j];
di_read_lock_parent2(d, !AuLock_IR);
bopq = au_dbdiropq(d);
di_read_unlock(d, !AuLock_IR);
if (bopq >= 0 && bopq < err)
err = bopq;
}
}
out_free:
dput(parent);
au_dpages_free(&dpages);
out:
return err;
}
