1 files changed, 33 insertions, 206 deletions

diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index d2cdb8a2aad6..97bb32937585 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -48,172 +48,13 @@
 #include "xfs_buf_item.h"
 #include "xfs_qm.h"
 
-#define MNTOPT_QUOTA	"quota"		/* disk quotas (user) */
-#define MNTOPT_NOQUOTA	"noquota"	/* no quotas */
-#define MNTOPT_USRQUOTA	"usrquota"	/* user quota enabled */
-#define MNTOPT_GRPQUOTA	"grpquota"	/* group quota enabled */
-#define MNTOPT_PRJQUOTA	"prjquota"	/* project quota enabled */
-#define MNTOPT_UQUOTA	"uquota"	/* user quota (IRIX variant) */
-#define MNTOPT_GQUOTA	"gquota"	/* group quota (IRIX variant) */
-#define MNTOPT_PQUOTA	"pquota"	/* project quota (IRIX variant) */
-#define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
-#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
-#define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
-#define MNTOPT_QUOTANOENF  "qnoenforce"	/* same as uqnoenforce */
 
-STATIC int
-xfs_qm_parseargs(
-	struct bhv_desc		*bhv,
-	char			*options,
-	struct xfs_mount_args	*args,
-	int			update)
-{
-	size_t			length;
-	char			*local_options = options;
-	char			*this_char;
-	int			error;
-	int			referenced = update;
-
-	while ((this_char = strsep(&local_options, ",")) != NULL) {
-		length = strlen(this_char);
-		if (local_options)
-			length++;
-
-		if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
-			args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA);
-			args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA);
-			referenced = update;
-		} else if (!strcmp(this_char, MNTOPT_QUOTA) ||
-			   !strcmp(this_char, MNTOPT_UQUOTA) ||
-			   !strcmp(this_char, MNTOPT_USRQUOTA)) {
-			args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF;
-			referenced = 1;
-		} else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
-			   !strcmp(this_char, MNTOPT_UQUOTANOENF)) {
-			args->flags |= XFSMNT_UQUOTA;
-			args->flags &= ~XFSMNT_UQUOTAENF;
-			referenced = 1;
-		} else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
-			   !strcmp(this_char, MNTOPT_PRJQUOTA)) {
-			args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF;
-			referenced = 1;
-		} else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
-			args->flags |= XFSMNT_PQUOTA;
-			args->flags &= ~XFSMNT_PQUOTAENF;
-			referenced = 1;
-		} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
-			   !strcmp(this_char, MNTOPT_GRPQUOTA)) {
-			args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF;
-			referenced = 1;
-		} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
-			args->flags |= XFSMNT_GQUOTA;
-			args->flags &= ~XFSMNT_GQUOTAENF;
-			referenced = 1;
-		} else {
-			if (local_options)
-				*(local_options-1) = ',';
-			continue;
-		}
-
-		while (length--)
-			*this_char++ = ',';
-	}
-
-	if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) {
-		cmn_err(CE_WARN,
-			"XFS: cannot mount with both project and group quota");
-		return XFS_ERROR(EINVAL);
-	}
-
-	error = bhv_next_vfs_parseargs(BHV_NEXT(bhv), options, args, update);
-	if (!error && !referenced)
-		bhv_remove_vfsops(bhvtovfs(bhv), VFS_POSITION_QM);
-	return error;
-}
-
-STATIC int
-xfs_qm_showargs(
-	struct bhv_desc		*bhv,
-	struct seq_file		*m)
-{
-	struct bhv_vfs		*vfsp = bhvtovfs(bhv);
-	struct xfs_mount	*mp = XFS_VFSTOM(vfsp);
-
-	if (mp->m_qflags & XFS_UQUOTA_ACCT) {
-		(mp->m_qflags & XFS_UQUOTA_ENFD) ?
-			seq_puts(m, "," MNTOPT_USRQUOTA) :
-			seq_puts(m, "," MNTOPT_UQUOTANOENF);
-	}
-
-	if (mp->m_qflags & XFS_PQUOTA_ACCT) {
-		(mp->m_qflags & XFS_OQUOTA_ENFD) ?
-			seq_puts(m, "," MNTOPT_PRJQUOTA) :
-			seq_puts(m, "," MNTOPT_PQUOTANOENF);
-	}
-
-	if (mp->m_qflags & XFS_GQUOTA_ACCT) {
-		(mp->m_qflags & XFS_OQUOTA_ENFD) ?
-			seq_puts(m, "," MNTOPT_GRPQUOTA) :
-			seq_puts(m, "," MNTOPT_GQUOTANOENF);
-	}
-
-	if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT))
-		seq_puts(m, "," MNTOPT_NOQUOTA);
-
-	return bhv_next_vfs_showargs(BHV_NEXT(bhv), m);
-}
-
-STATIC int
-xfs_qm_mount(
-	struct bhv_desc		*bhv,
-	struct xfs_mount_args	*args,
-	struct cred		*cr)
-{
-	struct bhv_vfs		*vfsp = bhvtovfs(bhv);
-	struct xfs_mount	*mp = XFS_VFSTOM(vfsp);
-
-	if (args->flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA | XFSMNT_PQUOTA))
-		xfs_qm_mount_quotainit(mp, args->flags);
-	return bhv_next_vfs_mount(BHV_NEXT(bhv), args, cr);
-}
-
-/*
- * 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.
- */
-STATIC int
-xfs_qm_statvfs(
-	struct bhv_desc		*bhv,
+STATIC void
+xfs_fill_statvfs_from_dquot(
 	bhv_statvfs_t		*statp,
-	struct bhv_vnode	*vnode)
+	xfs_disk_dquot_t	*dp)
 {
-	xfs_mount_t		*mp;
-	xfs_inode_t		*ip;
-	xfs_dquot_t		*dqp;
-	xfs_disk_dquot_t	*dp;
 	__uint64_t		limit;
-	int			error;
-
-	error = bhv_next_vfs_statvfs(BHV_NEXT(bhv), statp, vnode);
-	if (error || !vnode)
-		return error;
-
-	mp = xfs_vfstom(bhvtovfs(bhv));
-	ip = xfs_vtoi(vnode);
-
-	if (!(ip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT))
-		return 0;
-	if (!(mp->m_qflags & XFS_PQUOTA_ACCT))
-		return 0;
-	if (!(mp->m_qflags & XFS_OQUOTA_ENFD))
-		return 0;
-
-	if (xfs_qm_dqget(mp, NULL, ip->i_d.di_projid, XFS_DQ_PROJ, 0, &dqp))
-		return 0;
-	dp = &dqp->q_core;
 
 	limit = dp->d_blk_softlimit ?
 		be64_to_cpu(dp->d_blk_softlimit) :
@@ -234,37 +75,35 @@ xfs_qm_statvfs(
 			(statp->f_files > be64_to_cpu(dp->d_icount)) ?
 			 (statp->f_ffree - be64_to_cpu(dp->d_icount)) : 0;
 	}
-
-	xfs_qm_dqput(dqp);
-	return 0;
 }
 
-STATIC int
-xfs_qm_syncall(
-	struct bhv_desc		*bhv,
-	int			flags,
-	cred_t			*credp)
+
+/*
+ * 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.
+ */
+STATIC void
+xfs_qm_statvfs(
+	xfs_inode_t		*ip,
+	bhv_statvfs_t		*statp)
 {
-	struct bhv_vfs		*vfsp = bhvtovfs(bhv);
-	struct xfs_mount	*mp = XFS_VFSTOM(vfsp);
-	int			error;
+	xfs_mount_t		*mp = ip->i_mount;
+	xfs_dquot_t		*dqp;
 
-	/*
-	 * Get the Quota Manager to flush the dquots.
-	 */
-	if (XFS_IS_QUOTA_ON(mp)) {
-		if ((error = xfs_qm_sync(mp, flags))) {
-			/*
-			 * If we got an IO error, we will be shutting down.
-			 * So, there's nothing more for us to do here.
-			 */
-			ASSERT(error != EIO || XFS_FORCED_SHUTDOWN(mp));
-			if (XFS_FORCED_SHUTDOWN(mp)) {
-				return XFS_ERROR(error);
-			}
-		}
+	if (!(ip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) ||
+	    !((mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))) ==
+	    		      (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))
+		return;
+
+	if (!xfs_qm_dqget(mp, NULL, ip->i_d.di_projid, XFS_DQ_PROJ, 0, &dqp)) {
+		xfs_disk_dquot_t	*dp = &dqp->q_core;
+
+		xfs_fill_statvfs_from_dquot(statp, dp);
+		xfs_qm_dqput(dqp);
 	}
-	return bhv_next_vfs_sync(BHV_NEXT(bhv), flags, credp);
 }
 
 STATIC int
@@ -382,7 +221,7 @@ xfs_qm_dqrele_null(
 }
 
 
-static struct xfs_qmops xfs_qmcore_xfs = {
+struct xfs_qmops xfs_qmcore_xfs = {
 	.xfs_qminit		= xfs_qm_newmount,
 	.xfs_qmdone		= xfs_qm_unmount_quotadestroy,
 	.xfs_qmmount		= xfs_qm_endmount,
@@ -396,36 +235,24 @@ static struct xfs_qmops xfs_qmcore_xfs = {
 	.xfs_dqvoprename	= xfs_qm_vop_rename_dqattach,
 	.xfs_dqvopchown		= xfs_qm_vop_chown,
 	.xfs_dqvopchownresv	= xfs_qm_vop_chown_reserve,
+	.xfs_dqstatvfs		= xfs_qm_statvfs,
+	.xfs_dqsync		= xfs_qm_sync,
+	.xfs_quotactl		= xfs_qm_quotactl,
 	.xfs_dqtrxops		= &xfs_trans_dquot_ops,
 };
-
-struct bhv_module_vfsops xfs_qmops = { {
-	BHV_IDENTITY_INIT(VFS_BHV_QM, VFS_POSITION_QM),
-	.vfs_parseargs		= xfs_qm_parseargs,
-	.vfs_showargs		= xfs_qm_showargs,
-	.vfs_mount		= xfs_qm_mount,
-	.vfs_statvfs		= xfs_qm_statvfs,
-	.vfs_sync		= xfs_qm_syncall,
-	.vfs_quotactl		= xfs_qm_quotactl, },
-};
-
+EXPORT_SYMBOL(xfs_qmcore_xfs);
 
 void __init
 xfs_qm_init(void)
 {
-	static char	message[] __initdata =
-		KERN_INFO "SGI XFS Quota Management subsystem\n";
-
-	printk(message);
+	printk(KERN_INFO "SGI XFS Quota Management subsystem\n");
 	mutex_init(&xfs_Gqm_lock);
-	vfs_bhv_set_custom(&xfs_qmops, &xfs_qmcore_xfs);
 	xfs_qm_init_procfs();
 }
 
 void __exit
 xfs_qm_exit(void)
 {
-	vfs_bhv_clr_custom(&xfs_qmops);
 	xfs_qm_cleanup_procfs();
 	if (qm_dqzone)
 		kmem_zone_destroy(qm_dqzone);