Exemplos de di_write_lock_child2 em C++ (Cpp)

Exemplo n.º 1

Arquivo: dinfo.c Projeto: ninjablocks/kernel-VAR-SOM-AMxx

void di_write_lock2_child(struct dentry *d1, struct dentry *d2, int isdir)
{
	AuDebugOn(d1 == d2
		  || d1->d_inode == d2->d_inode
		  || d1->d_sb != d2->d_sb);

	if (isdir && au_test_subdir(d1, d2)) {
		di_write_lock_child(d1);
		di_write_lock_child2(d2);
	} else {
		/* there should be no races */
		di_write_lock_child(d2);
		di_write_lock_child2(d1);
	}
}

Exemplo n.º 2

Arquivo: dentry.c Projeto: marcero/ab73kernel-Hannspad-2632

int au_reval_dpath(struct dentry *dentry, unsigned int sigen)
{
	int err;
	struct dentry *d, *parent;
	struct inode *inode;

	if (!au_ftest_si(au_sbi(dentry->d_sb), FAILED_REFRESH_DIR))
		return simple_reval_dpath(dentry, sigen);

	/* slow loop, keep it simple and stupid */
	/* cf: au_cpup_dirs() */
	err = 0;
	parent = NULL;
	while (au_digen_test(dentry, sigen)) {
		d = dentry;
		while (1) {
			dput(parent);
			parent = dget_parent(d);
			if (!au_digen_test(parent, sigen))
				break;
			d = parent;
		}

		inode = d->d_inode;
		if (d != dentry)
			di_write_lock_child2(d);

		/* someone might update our dentry while we were sleeping */
		if (au_digen_test(d, sigen)) {
			/*
			 * todo: consolidate with simple_reval_dpath(),
			 * do_refresh() and au_reval_for_attr().
			 */
			di_read_lock_parent(parent, AuLock_IR);
			err = au_refresh_dentry(d, parent);
			di_read_unlock(parent, AuLock_IR);
		}

		if (d != dentry)
			di_write_unlock(d);
		dput(parent);
		if (unlikely(err))
			break;
	}

	return err;
}