From fcafb71b57a039f2113b0321b3b5535fea3a0aca Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 9 Feb 2009 08:47:34 +0100 Subject: xfs: get rid of indirections in the quotaops implementation Currently we call from the nicely abstracted linux quotaops into a ugly multiplexer just to split the calls out at the same boundary again. Rewrite the quota ops handling to remove that obfucation. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner --- fs/xfs/linux-2.6/xfs_quotaops.c | 157 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 fs/xfs/linux-2.6/xfs_quotaops.c (limited to 'fs/xfs/linux-2.6/xfs_quotaops.c') diff --git a/fs/xfs/linux-2.6/xfs_quotaops.c b/fs/xfs/linux-2.6/xfs_quotaops.c new file mode 100644 index 00000000000..94d9a633d3d --- /dev/null +++ b/fs/xfs/linux-2.6/xfs_quotaops.c @@ -0,0 +1,157 @@ +/* + * Copyright (c) 2008, Christoph Hellwig + * 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_dmapi.h" +#include "xfs_sb.h" +#include "xfs_inum.h" +#include "xfs_ag.h" +#include "xfs_mount.h" +#include "xfs_quota.h" +#include "xfs_log.h" +#include "xfs_trans.h" +#include "xfs_bmap_btree.h" +#include "xfs_inode.h" +#include "quota/xfs_qm.h" +#include + + +STATIC int +xfs_quota_type(int type) +{ + switch (type) { + case USRQUOTA: + return XFS_DQ_USER; + case GRPQUOTA: + return XFS_DQ_GROUP; + default: + return XFS_DQ_PROJ; + } +} + +STATIC int +xfs_fs_quota_sync( + struct super_block *sb, + int type) +{ + struct xfs_mount *mp = XFS_M(sb); + + if (!XFS_IS_QUOTA_RUNNING(mp)) + return -ENOSYS; + return -xfs_sync_inodes(mp, SYNC_DELWRI); +} + +STATIC int +xfs_fs_get_xstate( + struct super_block *sb, + struct fs_quota_stat *fqs) +{ + struct xfs_mount *mp = XFS_M(sb); + + if (!XFS_IS_QUOTA_RUNNING(mp)) + return -ENOSYS; + return -xfs_qm_scall_getqstat(mp, fqs); +} + +STATIC int +xfs_fs_set_xstate( + struct super_block *sb, + unsigned int uflags, + int op) +{ + struct xfs_mount *mp = XFS_M(sb); + unsigned int flags = 0; + + if (sb->s_flags & MS_RDONLY) + return -EROFS; + if (!XFS_IS_QUOTA_RUNNING(mp)) + return -ENOSYS; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + if (uflags & XFS_QUOTA_UDQ_ACCT) + flags |= XFS_UQUOTA_ACCT; + if (uflags & XFS_QUOTA_PDQ_ACCT) + flags |= XFS_PQUOTA_ACCT; + if (uflags & XFS_QUOTA_GDQ_ACCT) + flags |= XFS_GQUOTA_ACCT; + if (uflags & XFS_QUOTA_UDQ_ENFD) + flags |= XFS_UQUOTA_ENFD; + if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD)) + flags |= XFS_OQUOTA_ENFD; + + switch (op) { + case Q_XQUOTAON: + return -xfs_qm_scall_quotaon(mp, flags); + case Q_XQUOTAOFF: + if (!XFS_IS_QUOTA_ON(mp)) + return -EINVAL; + return -xfs_qm_scall_quotaoff(mp, flags); + case Q_XQUOTARM: + if (XFS_IS_QUOTA_ON(mp)) + return -EINVAL; + return -xfs_qm_scall_trunc_qfiles(mp, flags); + } + + return -EINVAL; +} + +STATIC int +xfs_fs_get_xquota( + struct super_block *sb, + int type, + qid_t id, + struct fs_disk_quota *fdq) +{ + struct xfs_mount *mp = XFS_M(sb); + + if (!XFS_IS_QUOTA_RUNNING(mp)) + return -ENOSYS; + if (!XFS_IS_QUOTA_ON(mp)) + return -ESRCH; + + return -xfs_qm_scall_getquota(mp, id, xfs_quota_type(type), fdq); +} + +STATIC int +xfs_fs_set_xquota( + struct super_block *sb, + int type, + qid_t id, + struct fs_disk_quota *fdq) +{ + struct xfs_mount *mp = XFS_M(sb); + + if (sb->s_flags & MS_RDONLY) + return -EROFS; + if (!XFS_IS_QUOTA_RUNNING(mp)) + return -ENOSYS; + if (!XFS_IS_QUOTA_ON(mp)) + return -ESRCH; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + return -xfs_qm_scall_setqlim(mp, id, xfs_quota_type(type), fdq); +} + +struct quotactl_ops xfs_quotactl_operations = { + .quota_sync = xfs_fs_quota_sync, + .get_xstate = xfs_fs_get_xstate, + .set_xstate = xfs_fs_set_xstate, + .get_xquota = xfs_fs_get_xquota, + .set_xquota = xfs_fs_set_xquota, +}; -- cgit v1.2.3