linux-hardened/fs/xfs/xfs_qm_bhv.c
Darrick J. Wong c8ce540db5 xfs: remove double-underscore integer types
This is a purely mechanical patch that removes the private
__{u,}int{8,16,32,64}_t typedefs in favor of using the system
{u,}int{8,16,32,64}_t typedefs.  This is the sed script used to perform
the transformation and fix the resulting whitespace and indentation
errors:

s/typedef\t__uint8_t/typedef __uint8_t\t/g
s/typedef\t__uint/typedef __uint/g
s/typedef\t__int\([0-9]*\)_t/typedef int\1_t\t/g
s/__uint8_t\t/__uint8_t\t\t/g
s/__uint/uint/g
s/__int\([0-9]*\)_t\t/__int\1_t\t\t/g
s/__int/int/g
/^typedef.*int[0-9]*_t;$/d

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2017-06-19 14:11:33 -07:00

149 lines
4.3 KiB
C

/*
* Copyright (c) 2000-2006 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#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_ffree - 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, NULL, xfs_get_projid(ip), XFS_DQ_PROJ, 0, &dqp)) {
xfs_fill_statvfs_from_dquot(statp, dqp);
xfs_qm_dqput(dqp);
}
}
int
xfs_qm_newmount(
xfs_mount_t *mp,
uint *needquotamount,
uint *quotaflags)
{
uint quotaondisk;
uint uquotaondisk = 0, gquotaondisk = 0, pquotaondisk = 0;
quotaondisk = xfs_sb_version_hasquota(&mp->m_sb) &&
(mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT);
if (quotaondisk) {
uquotaondisk = mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT;
pquotaondisk = mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT;
gquotaondisk = mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT;
}
/*
* If the device itself is read-only, we can't allow
* the user to change the state of quota on the mount -
* this would generate a transaction on the ro device,
* which would lead to an I/O error and shutdown
*/
if (((uquotaondisk && !XFS_IS_UQUOTA_ON(mp)) ||
(!uquotaondisk && XFS_IS_UQUOTA_ON(mp)) ||
(gquotaondisk && !XFS_IS_GQUOTA_ON(mp)) ||
(!gquotaondisk && XFS_IS_GQUOTA_ON(mp)) ||
(pquotaondisk && !XFS_IS_PQUOTA_ON(mp)) ||
(!pquotaondisk && XFS_IS_PQUOTA_ON(mp))) &&
xfs_dev_is_read_only(mp, "changing quota state")) {
xfs_warn(mp, "please mount with%s%s%s%s.",
(!quotaondisk ? "out quota" : ""),
(uquotaondisk ? " usrquota" : ""),
(gquotaondisk ? " grpquota" : ""),
(pquotaondisk ? " prjquota" : ""));
return -EPERM;
}
if (XFS_IS_QUOTA_ON(mp) || quotaondisk) {
/*
* Call mount_quotas at this point only if we won't have to do
* a quotacheck.
*/
if (quotaondisk && !XFS_QM_NEED_QUOTACHECK(mp)) {
/*
* If an error occurred, qm_mount_quotas code
* has already disabled quotas. So, just finish
* mounting, and get on with the boring life
* without disk quotas.
*/
xfs_qm_mount_quotas(mp);
} else {
/*
* Clear the quota flags, but remember them. This
* is so that the quota code doesn't get invoked
* before we're ready. This can happen when an
* inode goes inactive and wants to free blocks,
* or via xfs_log_mount_finish.
*/
*needquotamount = true;
*quotaflags = mp->m_qflags;
mp->m_qflags = 0;
}
}
return 0;
}