linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (c) 2000-2006 Silicon Graphics, Inc.

 * All Rights Reserved.

 */

#include "xfs.h"

#include "xfs_fs.h"

#include "xfs_format.h"

#include "xfs_log_format.h"

#include "xfs_trans_resv.h"

#include "xfs_quota.h"

#include "xfs_mount.h"

#include "xfs_inode.h"

#include "xfs_error.h"

#include "xfs_trans.h"

#include "xfs_qm.h"

​

​

STATIC void

xfs_fill_statvfs_from_dquot(

    struct kstatfs      *statp,

    struct xfs_dquot    *dqp)

{

    uint64_t        limit;

​

    limit = dqp->q_core.d_blk_softlimit ?

        be64_to_cpu(dqp->q_core.d_blk_softlimit) :

        be64_to_cpu(dqp->q_core.d_blk_hardlimit);

    if (limit && statp->f_blocks > limit) {

        statp->f_blocks = limit;

        statp->f_bfree = statp->f_bavail =

            (statp->f_blocks > dqp->q_res_bcount) ?

             (statp->f_blocks - dqp->q_res_bcount) : 0;

    }

​

    limit = dqp->q_core.d_ino_softlimit ?

        be64_to_cpu(dqp->q_core.d_ino_softlimit) :

        be64_to_cpu(dqp->q_core.d_ino_hardlimit);

    if (limit && statp->f_files > limit) {

        statp->f_files = limit;

        statp->f_ffree =

            (statp->f_files > dqp->q_res_icount) ?

             (statp->f_files - dqp->q_res_icount) : 0;

    }

}

​

​

/*

 * Directory tree accounting is implemented using project quotas, where

 * the project identifier is inherited from parent directories.

 * A statvfs (df, etc.) of a directory that is using project quota should

 * return a statvfs of the project, not the entire filesystem.

 * This makes such trees appear as if they are filesystems in themselves.

 */

void

xfs_qm_statvfs(

    xfs_inode_t     *ip,

    struct kstatfs      *statp)

{

    xfs_mount_t     *mp = ip->i_mount;

    xfs_dquot_t     *dqp;

​

    if (!xfs_qm_dqget(mp, xfs_get_projid(ip), XFS_DQ_PROJ, false, &dqp)) {