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https://github.com/torvalds/linux
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6ca1c9063d
The on disk format definitions of the on-disk dquot, log formats and quota off log formats are all intertwined with other definitions for quotas. Separate them out into their own header file so they can easily be shared with userspace. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
142 lines
3.2 KiB
C
142 lines
3.2 KiB
C
/*
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* Copyright (c) 2008, Christoph Hellwig
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "xfs.h"
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#include "xfs_format.h"
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#include "xfs_sb.h"
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#include "xfs_log.h"
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#include "xfs_ag.h"
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#include "xfs_mount.h"
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#include "xfs_quota.h"
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#include "xfs_trans.h"
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#include "xfs_bmap_btree.h"
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#include "xfs_inode.h"
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#include "xfs_qm.h"
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#include <linux/quota.h>
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STATIC int
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xfs_quota_type(int type)
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{
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switch (type) {
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case USRQUOTA:
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return XFS_DQ_USER;
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case GRPQUOTA:
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return XFS_DQ_GROUP;
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default:
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return XFS_DQ_PROJ;
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}
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}
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STATIC int
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xfs_fs_get_xstate(
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struct super_block *sb,
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struct fs_quota_stat *fqs)
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{
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struct xfs_mount *mp = XFS_M(sb);
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if (!XFS_IS_QUOTA_RUNNING(mp))
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return -ENOSYS;
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return -xfs_qm_scall_getqstat(mp, fqs);
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}
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STATIC int
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xfs_fs_set_xstate(
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struct super_block *sb,
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unsigned int uflags,
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int op)
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{
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struct xfs_mount *mp = XFS_M(sb);
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unsigned int flags = 0;
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if (sb->s_flags & MS_RDONLY)
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return -EROFS;
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if (op != Q_XQUOTARM && !XFS_IS_QUOTA_RUNNING(mp))
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return -ENOSYS;
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if (uflags & FS_QUOTA_UDQ_ACCT)
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flags |= XFS_UQUOTA_ACCT;
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if (uflags & FS_QUOTA_PDQ_ACCT)
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flags |= XFS_PQUOTA_ACCT;
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if (uflags & FS_QUOTA_GDQ_ACCT)
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flags |= XFS_GQUOTA_ACCT;
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if (uflags & FS_QUOTA_UDQ_ENFD)
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flags |= XFS_UQUOTA_ENFD;
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if (uflags & FS_QUOTA_GDQ_ENFD)
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flags |= XFS_GQUOTA_ENFD;
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if (uflags & FS_QUOTA_PDQ_ENFD)
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flags |= XFS_PQUOTA_ENFD;
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switch (op) {
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case Q_XQUOTAON:
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return -xfs_qm_scall_quotaon(mp, flags);
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case Q_XQUOTAOFF:
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if (!XFS_IS_QUOTA_ON(mp))
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return -EINVAL;
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return -xfs_qm_scall_quotaoff(mp, flags);
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case Q_XQUOTARM:
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if (XFS_IS_QUOTA_ON(mp))
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return -EINVAL;
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return -xfs_qm_scall_trunc_qfiles(mp, flags);
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}
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return -EINVAL;
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}
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STATIC int
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xfs_fs_get_dqblk(
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struct super_block *sb,
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struct kqid qid,
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struct fs_disk_quota *fdq)
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{
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struct xfs_mount *mp = XFS_M(sb);
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if (!XFS_IS_QUOTA_RUNNING(mp))
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return -ENOSYS;
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if (!XFS_IS_QUOTA_ON(mp))
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return -ESRCH;
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return -xfs_qm_scall_getquota(mp, from_kqid(&init_user_ns, qid),
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xfs_quota_type(qid.type), fdq);
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}
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STATIC int
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xfs_fs_set_dqblk(
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struct super_block *sb,
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struct kqid qid,
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struct fs_disk_quota *fdq)
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{
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struct xfs_mount *mp = XFS_M(sb);
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if (sb->s_flags & MS_RDONLY)
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return -EROFS;
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if (!XFS_IS_QUOTA_RUNNING(mp))
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return -ENOSYS;
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if (!XFS_IS_QUOTA_ON(mp))
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return -ESRCH;
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return -xfs_qm_scall_setqlim(mp, from_kqid(&init_user_ns, qid),
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xfs_quota_type(qid.type), fdq);
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}
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const struct quotactl_ops xfs_quotactl_operations = {
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.get_xstate = xfs_fs_get_xstate,
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.set_xstate = xfs_fs_set_xstate,
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.get_dqblk = xfs_fs_get_dqblk,
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.set_dqblk = xfs_fs_set_dqblk,
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};
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