Esempi in C++ (Cpp) per au_do_mkdir

Esempio n. 1

File: mvdown.c Progetto: JanLuca/aufs4-debian

/*
 * copy-down the file and unlink the bsrc file.
 * - unlink the bdst whout if exist
 * - copy-down the file (with whtmp name and rename)
 * - unlink the bsrc file
 */
static int au_do_mvdown(const unsigned char dmsg, struct au_mvd_args *a)
{
	int err;

	err = au_do_mkdir(dmsg, a);
	if (!err)
		err = au_do_lock(dmsg, a);
	if (unlikely(err))
		goto out;

	/*
	 * do not revert the activities we made on bdst since they should be
	 * harmless in aufs.
	 */

	err = au_do_cpdown(dmsg, a);
	if (!err)
		err = au_do_unlink_wh(dmsg, a);
	if (!err && !(a->mvdown.flags & AUFS_MVDOWN_KUPPER))
		err = au_do_unlink(dmsg, a);
	if (unlikely(err))
		goto out_unlock;

	AuDbg("%pd2, 0x%x, %d --> %d\n",
	      a->dentry, a->mvdown.flags, a->mvd_bsrc, a->mvd_bdst);
	if (find_lower_writable(a) < 0)
		a->mvdown.flags |= AUFS_MVDOWN_BOTTOM;

	if (a->mvdown.flags & AUFS_MVDOWN_STFS)
		au_do_stfs(dmsg, a);

	/* maintain internal array */
	if (!(a->mvdown.flags & AUFS_MVDOWN_KUPPER)) {
		au_set_h_dptr(a->dentry, a->mvd_bsrc, NULL);
		au_set_dbtop(a->dentry, a->mvd_bdst);
		au_set_h_iptr(a->inode, a->mvd_bsrc, NULL, /*flags*/0);
		au_set_ibtop(a->inode, a->mvd_bdst);
	} else {
		/* hide the lower */
		au_set_h_dptr(a->dentry, a->mvd_bdst, NULL);
		au_set_dbbot(a->dentry, a->mvd_bsrc);
		au_set_h_iptr(a->inode, a->mvd_bdst, NULL, /*flags*/0);
		au_set_ibbot(a->inode, a->mvd_bsrc);
	}
	if (au_dbbot(a->dentry) < a->mvd_bdst)
		au_set_dbbot(a->dentry, a->mvd_bdst);
	if (au_ibbot(a->inode) < a->mvd_bdst)
		au_set_ibbot(a->inode, a->mvd_bdst);

out_unlock:
	au_do_unlock(dmsg, a);
out:
	AuTraceErr(err);
	return err;
}

Esempio n. 2

/*
 * copy-down the file and unlink the bsrc file.
 * - unlink the bdst whout if exist
 * - copy-down the file (with whtmp name and rename)
 * - unlink the bsrc file
 */
static int au_do_mvdown(const unsigned char dmsg, struct au_mvd_args *a)
{
	int err;

	err = au_do_mkdir(dmsg, a);
	if (!err)
		err = au_do_lock(dmsg, a);
	if (unlikely(err))
		goto out;

	/*
	 * do not revert the activities we made on bdst since they should be
	 * harmless in aufs.
	 */

	err = au_do_cpdown(dmsg, a);
	if (!err)
		err = au_do_unlink_wh(dmsg, a);
	if (!err && !(a->mvdown.flags & AUFS_MVDOWN_KUPPER))
		err = au_do_unlink(dmsg, a);
	if (unlikely(err))
		goto out_unlock;

	/* maintain internal array */
	if (!(a->mvdown.flags & AUFS_MVDOWN_KUPPER)) {
		au_set_h_dptr(a->dentry, a->mvd_bsrc, NULL);
		au_set_dbstart(a->dentry, a->mvd_bdst);
		au_set_h_iptr(a->inode, a->mvd_bsrc, NULL, /*flags*/0);
		au_set_ibstart(a->inode, a->mvd_bdst);
	}
	if (au_dbend(a->dentry) < a->mvd_bdst)
		au_set_dbend(a->dentry, a->mvd_bdst);
	if (au_ibend(a->inode) < a->mvd_bdst)
		au_set_ibend(a->inode, a->mvd_bdst);

out_unlock:
	au_do_unlock(dmsg, a);
out:
	AuTraceErr(err);
	return err;
}