Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull quota and udf updates from Jan Kara:
 "The pull contains quota changes which complete unification of XFS and
  VFS quota interfaces (so tools can use either interface to manipulate
  any filesystem).  There's also a patch to support project quotas in
  VFS quota subsystem from Li Xi.

  Finally there's a bunch of UDF fixes and cleanups and tiny cleanup in
  reiserfs & ext3"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (21 commits)
  udf: Update ctime and mtime when directory is modified
  udf: return correct errno for udf_update_inode()
  ext3: Remove useless condition in if statement.
  vfs: Add general support to enforce project quota limits
  reiserfs: fix __RASSERT format string
  udf: use int for allocated blocks instead of sector_t
  udf: remove redundant buffer_head.h includes
  udf: remove else after return in __load_block_bitmap()
  udf: remove unused variable in udf_table_free_blocks()
  quota: Fix maximum quota limit settings
  quota: reorder flags in quota state
  quota: paranoia: check quota tree root
  quota: optimize i_dquot access
  quota: Hook up Q_XSETQLIM for id 0 to ->set_info
  xfs: Add support for Q_SETINFO
  quota: Make ->set_info use structure with neccesary info to VFS and XFS
  quota: Remove ->get_xstate and ->get_xstatev callbacks
  gfs2: Convert to using ->get_state callback
  xfs: Convert to using ->get_state callback
  quota: Wire up Q_GETXSTATE and Q_GETXSTATV calls to work with ->get_state
  ...

3 files changed, 100 insertions, 197 deletions

diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h
index 0d4d3590cf85..996a04064894 100644
--- a/fs/xfs/xfs_qm.h
+++ b/fs/xfs/xfs_qm.h
@@ -168,10 +168,6 @@ extern int		xfs_qm_scall_getquota(struct xfs_mount *, xfs_dqid_t,
 					uint, struct qc_dqblk *);
 extern int		xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint,
 					struct qc_dqblk *);
-extern int		xfs_qm_scall_getqstat(struct xfs_mount *,
-					struct fs_quota_stat *);
-extern int		xfs_qm_scall_getqstatv(struct xfs_mount *,
-					struct fs_quota_statv *);
 extern int		xfs_qm_scall_quotaon(struct xfs_mount *, uint);
 extern int		xfs_qm_scall_quotaoff(struct xfs_mount *, uint);
 
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index 9b965db45800..9a25c9275fb3 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -38,7 +38,6 @@
 STATIC int	xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint);
 STATIC int	xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *,
 					uint);
-STATIC uint	xfs_qm_export_flags(uint);
 
 /*
  * Turn off quota accounting and/or enforcement for all udquots and/or
@@ -389,159 +388,6 @@ xfs_qm_scall_quotaon(
 	return 0;
 }
 
-
-/*
- * Return quota status information, such as uquota-off, enforcements, etc.
- * for Q_XGETQSTAT command.
- */
-int
-xfs_qm_scall_getqstat(
-	struct xfs_mount	*mp,
-	struct fs_quota_stat	*out)
-{
-	struct xfs_quotainfo	*q = mp->m_quotainfo;
-	struct xfs_inode	*uip = NULL;
-	struct xfs_inode	*gip = NULL;
-	struct xfs_inode	*pip = NULL;
-	bool                    tempuqip = false;
-	bool                    tempgqip = false;
-	bool                    temppqip = false;
-
-	memset(out, 0, sizeof(fs_quota_stat_t));
-
-	out->qs_version = FS_QSTAT_VERSION;
-	out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags &
-							(XFS_ALL_QUOTA_ACCT|
-							 XFS_ALL_QUOTA_ENFD));
-	uip = q->qi_uquotaip;
-	gip = q->qi_gquotaip;
-	pip = q->qi_pquotaip;
-	if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) {
-		if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
-					0, 0, &uip) == 0)
-			tempuqip = true;
-	}
-	if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) {
-		if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
-					0, 0, &gip) == 0)
-			tempgqip = true;
-	}
-	/*
-	 * Q_XGETQSTAT doesn't have room for both group and project quotas.
-	 * So, allow the project quota values to be copied out only if
-	 * there is no group quota information available.
-	 */
-	if (!gip) {
-		if (!pip && mp->m_sb.sb_pquotino != NULLFSINO) {
-			if (xfs_iget(mp, NULL, mp->m_sb.sb_pquotino,
-						0, 0, &pip) == 0)
-				temppqip = true;
-		}
-	} else
-		pip = NULL;
-	if (uip) {
-		out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino;
-		out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks;
-		out->qs_uquota.qfs_nextents = uip->i_d.di_nextents;
-		if (tempuqip)
-			IRELE(uip);
-	}
-
-	if (gip) {
-		out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino;
-		out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks;
-		out->qs_gquota.qfs_nextents = gip->i_d.di_nextents;
-		if (tempgqip)
-			IRELE(gip);
-	}
-	if (pip) {
-		out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino;
-		out->qs_gquota.qfs_nblks = pip->i_d.di_nblocks;
-		out->qs_gquota.qfs_nextents = pip->i_d.di_nextents;
-		if (temppqip)
-			IRELE(pip);
-	}
-	out->qs_incoredqs = q->qi_dquots;
-	out->qs_btimelimit = q->qi_btimelimit;
-	out->qs_itimelimit = q->qi_itimelimit;
-	out->qs_rtbtimelimit = q->qi_rtbtimelimit;
-	out->qs_bwarnlimit = q->qi_bwarnlimit;
-	out->qs_iwarnlimit = q->qi_iwarnlimit;
-
-	return 0;
-}
-
-/*
- * Return quota status information, such as uquota-off, enforcements, etc.
- * for Q_XGETQSTATV command, to support separate project quota field.
- */
-int
-xfs_qm_scall_getqstatv(
-	struct xfs_mount	*mp,
-	struct fs_quota_statv	*out)
-{
-	struct xfs_quotainfo	*q = mp->m_quotainfo;
-	struct xfs_inode	*uip = NULL;
-	struct xfs_inode	*gip = NULL;
-	struct xfs_inode	*pip = NULL;
-	bool                    tempuqip = false;
-	bool                    tempgqip = false;
-	bool                    temppqip = false;
-
-	out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags &
-							(XFS_ALL_QUOTA_ACCT|
-							 XFS_ALL_QUOTA_ENFD));
-	out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino;
-	out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino;
-	out->qs_pquota.qfs_ino = mp->m_sb.sb_pquotino;
-
-	uip = q->qi_uquotaip;
-	gip = q->qi_gquotaip;
-	pip = q->qi_pquotaip;
-	if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) {
-		if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
-					0, 0, &uip) == 0)
-			tempuqip = true;
-	}
-	if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) {
-		if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
-					0, 0, &gip) == 0)
-			tempgqip = true;
-	}
-	if (!pip && mp->m_sb.sb_pquotino != NULLFSINO) {
-		if (xfs_iget(mp, NULL, mp->m_sb.sb_pquotino,
-					0, 0, &pip) == 0)
-			temppqip = true;
-	}
-	if (uip) {
-		out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks;
-		out->qs_uquota.qfs_nextents = uip->i_d.di_nextents;
-		if (tempuqip)
-			IRELE(uip);
-	}
-
-	if (gip) {
-		out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks;
-		out->qs_gquota.qfs_nextents = gip->i_d.di_nextents;
-		if (tempgqip)
-			IRELE(gip);
-	}
-	if (pip) {
-		out->qs_pquota.qfs_nblks = pip->i_d.di_nblocks;
-		out->qs_pquota.qfs_nextents = pip->i_d.di_nextents;
-		if (temppqip)
-			IRELE(pip);
-	}
-	out->qs_incoredqs = q->qi_dquots;
-	out->qs_btimelimit = q->qi_btimelimit;
-	out->qs_itimelimit = q->qi_itimelimit;
-	out->qs_rtbtimelimit = q->qi_rtbtimelimit;
-	out->qs_bwarnlimit = q->qi_bwarnlimit;
-	out->qs_iwarnlimit = q->qi_iwarnlimit;
-
-	return 0;
-}
-
 #define XFS_QC_MASK \
 	(QC_LIMIT_MASK | QC_TIMER_MASK | QC_WARNS_MASK)
 
@@ -873,28 +719,6 @@ out_put:
 	return error;
 }
 
-STATIC uint
-xfs_qm_export_flags(
-	uint flags)
-{
-	uint uflags;
-
-	uflags = 0;
-	if (flags & XFS_UQUOTA_ACCT)
-		uflags |= FS_QUOTA_UDQ_ACCT;
-	if (flags & XFS_GQUOTA_ACCT)
-		uflags |= FS_QUOTA_GDQ_ACCT;
-	if (flags & XFS_PQUOTA_ACCT)
-		uflags |= FS_QUOTA_PDQ_ACCT;
-	if (flags & XFS_UQUOTA_ENFD)
-		uflags |= FS_QUOTA_UDQ_ENFD;
-	if (flags & XFS_GQUOTA_ENFD)
-		uflags |= FS_QUOTA_GDQ_ENFD;
-	if (flags & XFS_PQUOTA_ENFD)
-		uflags |= FS_QUOTA_PDQ_ENFD;
-	return uflags;
-}
-
 
 STATIC int
 xfs_dqrele_inode(
diff --git a/fs/xfs/xfs_quotaops.c b/fs/xfs/xfs_quotaops.c
index 6923905ab33d..7795e0d01382 100644
--- a/fs/xfs/xfs_quotaops.c
+++ b/fs/xfs/xfs_quotaops.c
@@ -23,10 +23,81 @@
 #include "xfs_inode.h"
 #include "xfs_quota.h"
 #include "xfs_trans.h"
+#include "xfs_trace.h"
+#include "xfs_icache.h"
 #include "xfs_qm.h"
 #include <linux/quota.h>
 
 
+static void
+xfs_qm_fill_state(
+	struct qc_type_state	*tstate,
+	struct xfs_mount	*mp,
+	struct xfs_inode	*ip,
+	xfs_ino_t		ino)
+{
+	struct xfs_quotainfo *q = mp->m_quotainfo;
+	bool tempqip = false;
+
+	tstate->ino = ino;
+	if (!ip && ino == NULLFSINO)
+		return;
+	if (!ip) {
+		if (xfs_iget(mp, NULL, ino, 0, 0, &ip))
+			return;
+		tempqip = true;
+	}
+	tstate->flags |= QCI_SYSFILE;
+	tstate->blocks = ip->i_d.di_nblocks;
+	tstate->nextents = ip->i_d.di_nextents;
+	tstate->spc_timelimit = q->qi_btimelimit;
+	tstate->ino_timelimit = q->qi_itimelimit;
+	tstate->rt_spc_timelimit = q->qi_rtbtimelimit;
+	tstate->spc_warnlimit = q->qi_bwarnlimit;
+	tstate->ino_warnlimit = q->qi_iwarnlimit;
+	tstate->rt_spc_warnlimit = q->qi_rtbwarnlimit;
+	if (tempqip)
+		IRELE(ip);
+}
+
+/*
+ * Return quota status information, such as enforcements, quota file inode
+ * numbers etc.
+ */
+static int
+xfs_fs_get_quota_state(
+	struct super_block	*sb,
+	struct qc_state		*state)
+{
+	struct xfs_mount *mp = XFS_M(sb);
+	struct xfs_quotainfo *q = mp->m_quotainfo;
+
+	memset(state, 0, sizeof(*state));
+	if (!XFS_IS_QUOTA_RUNNING(mp))
+		return 0;
+	state->s_incoredqs = q->qi_dquots;
+	if (XFS_IS_UQUOTA_RUNNING(mp))
+		state->s_state[USRQUOTA].flags |= QCI_ACCT_ENABLED;
+	if (XFS_IS_UQUOTA_ENFORCED(mp))
+		state->s_state[USRQUOTA].flags |= QCI_LIMITS_ENFORCED;
+	if (XFS_IS_GQUOTA_RUNNING(mp))
+		state->s_state[GRPQUOTA].flags |= QCI_ACCT_ENABLED;
+	if (XFS_IS_GQUOTA_ENFORCED(mp))
+		state->s_state[GRPQUOTA].flags |= QCI_LIMITS_ENFORCED;
+	if (XFS_IS_PQUOTA_RUNNING(mp))
+		state->s_state[PRJQUOTA].flags |= QCI_ACCT_ENABLED;
+	if (XFS_IS_PQUOTA_ENFORCED(mp))
+		state->s_state[PRJQUOTA].flags |= QCI_LIMITS_ENFORCED;
+
+	xfs_qm_fill_state(&state->s_state[USRQUOTA], mp, q->qi_uquotaip,
+			  mp->m_sb.sb_uquotino);
+	xfs_qm_fill_state(&state->s_state[GRPQUOTA], mp, q->qi_gquotaip,
+			  mp->m_sb.sb_gquotino);
+	xfs_qm_fill_state(&state->s_state[PRJQUOTA], mp, q->qi_pquotaip,
+			  mp->m_sb.sb_pquotino);
+	return 0;
+}
+
 STATIC int
 xfs_quota_type(int type)
 {
@@ -40,28 +111,40 @@ xfs_quota_type(int type)
 	}
 }
 
-STATIC int
-xfs_fs_get_xstate(
+#define XFS_QC_SETINFO_MASK (QC_TIMER_MASK | QC_WARNS_MASK)
+
+/*
+ * Adjust quota timers & warnings
+ */
+static int
+xfs_fs_set_info(
 	struct super_block	*sb,
-	struct fs_quota_stat	*fqs)
+	int			type,
+	struct qc_info		*info)
 {
-	struct xfs_mount	*mp = XFS_M(sb);
+	struct xfs_mount *mp = XFS_M(sb);
+	struct qc_dqblk newlim;
 
+	if (sb->s_flags & MS_RDONLY)
+		return -EROFS;
 	if (!XFS_IS_QUOTA_RUNNING(mp))
 		return -ENOSYS;
-	return xfs_qm_scall_getqstat(mp, fqs);
-}
+	if (!XFS_IS_QUOTA_ON(mp))
+		return -ESRCH;
+	if (info->i_fieldmask & ~XFS_QC_SETINFO_MASK)
+		return -EINVAL;
+	if ((info->i_fieldmask & XFS_QC_SETINFO_MASK) == 0)
+		return 0;
 
-STATIC int
-xfs_fs_get_xstatev(
-	struct super_block	*sb,
-	struct fs_quota_statv	*fqs)
-{
-	struct xfs_mount	*mp = XFS_M(sb);
+	newlim.d_fieldmask = info->i_fieldmask;
+	newlim.d_spc_timer = info->i_spc_timelimit;
+	newlim.d_ino_timer = info->i_ino_timelimit;
+	newlim.d_rt_spc_timer = info->i_rt_spc_timelimit;
+	newlim.d_ino_warns = info->i_ino_warnlimit;
+	newlim.d_spc_warns = info->i_spc_warnlimit;
+	newlim.d_rt_spc_warns = info->i_rt_spc_warnlimit;
 
-	if (!XFS_IS_QUOTA_RUNNING(mp))
-		return -ENOSYS;
-	return xfs_qm_scall_getqstatv(mp, fqs);
+	return xfs_qm_scall_setqlim(mp, 0, xfs_quota_type(type), &newlim);
 }
 
 static unsigned int
@@ -178,8 +261,8 @@ xfs_fs_set_dqblk(
 }
 
 const struct quotactl_ops xfs_quotactl_operations = {
-	.get_xstatev		= xfs_fs_get_xstatev,
-	.get_xstate		= xfs_fs_get_xstate,
+	.get_state		= xfs_fs_get_quota_state,
+	.set_info		= xfs_fs_set_info,
 	.quota_enable		= xfs_quota_enable,
 	.quota_disable		= xfs_quota_disable,
 	.rm_xquota		= xfs_fs_rm_xquota,