void __au_dbg_verify_dinode(struct dentry *dentry, const char *func, int line)
{
struct inode *h_inode, *inode = dentry->d_inode;
struct dentry *h_dentry;
aufs_bindex_t bindex, bend, bi;
if (!inode /* || au_di(dentry)->di_lsc == AuLsc_DI_TMP */)
return;
bend = au_dbend(dentry);
bi = au_ibend(inode);
if (bi < bend)
bend = bi;
bindex = au_dbstart(dentry);
bi = au_ibstart(inode);
if (bi > bindex)
bindex = bi;
for (; bindex <= bend; bindex++) {
h_dentry = au_h_dptr(dentry, bindex);
if (!h_dentry)
continue;
h_inode = au_h_iptr(inode, bindex);
if (unlikely(h_inode != h_dentry->d_inode)) {
au_debug_on();
AuDbg("b%d, %s:%d\n", bindex, func, line);
AuDbgDentry(dentry);
AuDbgInode(inode);
au_debug_off();
BUG();
}
}
}
static void sysrq_sb(struct super_block *sb)
{
char *plevel;
struct inode *i;
struct au_sbinfo *sbinfo;
struct file *file;
plevel = au_plevel;
au_plevel = KERN_WARNING;
au_debug_on();
sbinfo = au_sbi(sb);
pr_warning("si=%lx\n", au_si_mask ^ (unsigned long)sbinfo);
pr_warning(AUFS_NAME ": superblock\n");
au_dpri_sb(sb);
pr_warning(AUFS_NAME ": root dentry\n");
au_dpri_dentry(sb->s_root);
pr_warning(AUFS_NAME ": root inode\n");
au_dpri_inode(sb->s_root->d_inode);
pr_warning(AUFS_NAME ": isolated inode\n");
list_for_each_entry(i, &sb->s_inodes, i_sb_list)
if (list_empty(&i->i_dentry))
au_dpri_inode(i);
pr_warning(AUFS_NAME ": files\n");
list_for_each_entry(file, &sb->s_files, f_u.fu_list)
if (au_test_aufs_file(file))
au_dpri_file(file);
#ifdef CONFIG_AUFS_DEBUG_LOCK
{
struct au_dbg_lock *p;
struct list_head *head;
pr_warning(AUFS_NAME ": locking si\n");
head = &sbinfo->si_dbg_lock[AuDbgLock_SI_LOCKING].head;
list_for_each_entry(p, head, list)
pr_warning("pid: %d, 0x%x\n", p->pid, p->flags);
pr_warning(AUFS_NAME ": locked si\n");
head = &sbinfo->si_dbg_lock[AuDbgLock_SI_LOCKED].head;
list_for_each_entry(p, head, list)
pr_warning("pid: %d, 0x%x\n", p->pid, p->flags);
pr_warning(AUFS_NAME ": locking di\n");
head = &sbinfo->si_dbg_lock[AuDbgLock_DI_LOCKING].head;
list_for_each_entry(p, head, list) {
pr_warning("pid: %d, 0x%x, %d\n",
p->pid, p->flags, p->lsc);
au_dpri_dentry(p->dentry);
}
pr_warning(AUFS_NAME ": locked di\n");
head = &sbinfo->si_dbg_lock[AuDbgLock_DI_LOCKED].head;
list_for_each_entry(p, head, list) {
pr_warning("pid: %d, 0x%x, %d\n",
p->pid, p->flags, p->lsc);
au_dpri_dentry(p->dentry);
}
/* Returns 0, or -errno. arg is in kp->arg. */
static int param_atomic_t_set(const char *val, const struct kernel_param *kp)
{
int err, n;
err = kstrtoint(val, 0, &n);
if (!err) {
if (n > 0)
au_debug_on();
else
au_debug_off();
}
return err;
}
