/*
* they are necessary regardless sysfs is disabled.
*/
void au_si_free(struct kobject *kobj)
{
struct au_sbinfo *sbinfo;
struct super_block *sb;
char *locked __maybe_unused; /* debug only */
sbinfo = container_of(kobj, struct au_sbinfo, si_kobj);
AuDebugOn(!list_empty(&sbinfo->si_plink.head));
AuDebugOn(sbinfo->si_plink_maint);
sb = sbinfo->si_sb;
si_write_lock(sb);
au_xino_clr(sb);
au_br_free(sbinfo);
si_write_unlock(sb);
AuDebugOn(radix_tree_gang_lookup
(&sbinfo->au_si_pid.tree, (void **)&locked,
/*first_index*/PID_MAX_DEFAULT - 1,
/*max_items*/sizeof(locked)/sizeof(*locked)));
kfree(sbinfo->si_branch);
kfree(sbinfo->au_si_pid.bitmap);
mutex_destroy(&sbinfo->si_xib_mtx);
AuRwDestroy(&sbinfo->si_rwsem);
kfree(sbinfo);
}
/*
* they are necessary regardless sysfs is disabled.
*/
void au_si_free(struct kobject *kobj)
{
struct au_sbinfo *sbinfo;
struct super_block *sb;
sbinfo = container_of(kobj, struct au_sbinfo, si_kobj);
AuDebugOn(!list_empty(&sbinfo->si_plink.head));
AuDebugOn(sbinfo->si_plink_maint);
sb = sbinfo->si_sb;
si_write_lock(sb);
au_xino_clr(sb);
au_br_free(sbinfo);
kfree(sbinfo->si_branch);
mutex_destroy(&sbinfo->si_xib_mtx);
si_write_unlock(sb);
AuRwDestroy(&sbinfo->si_rwsem);
kfree(sbinfo);
}
static int au_opt_xino(struct super_block *sb, struct au_opt *opt,
struct au_opt_xino **opt_xino,
struct au_opts *opts)
{
int err;
aufs_bindex_t bend, bindex;
struct dentry *root, *parent, *h_root;
err = 0;
switch (opt->type) {
case Opt_xino:
err = au_xino_set(sb, &opt->xino,
!!au_ftest_opts(opts->flags, REMOUNT));
if (unlikely(err))
break;
*opt_xino = &opt->xino;
au_xino_brid_set(sb, -1);
/* safe d_parent access */
parent = opt->xino.file->f_dentry->d_parent;
root = sb->s_root;
bend = au_sbend(sb);
for (bindex = 0; bindex <= bend; bindex++) {
h_root = au_h_dptr(root, bindex);
if (h_root == parent) {
au_xino_brid_set(sb, au_sbr_id(sb, bindex));
break;
}
}
break;
case Opt_noxino:
au_xino_clr(sb);
au_xino_brid_set(sb, -1);
*opt_xino = (void *)-1;
break;
}
return err;
}
