[PATCH 33/67] aufs policies for selecting one among multiple writable branches

[hooanon05@yahoo.co.jp]

From: Junjiro Okajima <hooanon05@yahoo.co.jp>

	initial commit
	aufs policies for selecting one among multiple writable branches

Signed-off-by: Junjiro Okajima <hooanon05@yahoo.co.jp>
---
 fs/aufs/wbr_policy.c |  693 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 693 insertions(+), 0 deletions(-)

diff --git a/fs/aufs/wbr_policy.c b/fs/aufs/wbr_policy.c
new file mode 100644
index 0000000..1e0f1b8
--- /dev/null
+++ b/fs/aufs/wbr_policy.c
@@ -0,0 +1,693 @@
+/*
+ * Copyright (C) 2007-2008 Junjiro Okajima
+ *
+ * This program, aufs 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/*
+ * policies for selecting one among multiple writable branches
+ *
+ * $Id: wbr_policy.c,v 1.3 2008/04/28 03:04:12 sfjro Exp $
+ */
+
+#include <linux/statfs.h>
+#include "aufs.h"
+
+static int au_cpdown_attr(struct dentry *h_dst, struct dentry *h_src, int dlgt)
+{
+	int err, sbits;
+	struct iattr ia;
+	struct inode *h_idst, *h_isrc;
+	struct vfsub_args vargs;
+
+	LKTRTrace("%.*s\n", AuDLNPair(h_dst));
+	h_idst = h_dst->d_inode;
+	//IMustLock(h_idst);
+	h_isrc = h_src->d_inode;
+	//IMustLock(h_isrc);
+
+	ia.ia_valid = ATTR_FORCE | ATTR_MODE | ATTR_UID | ATTR_GID;
+	ia.ia_mode = h_isrc->i_mode;
+	ia.ia_uid = h_isrc->i_uid;
+	ia.ia_gid = h_isrc->i_gid;
+	sbits = !!(ia.ia_mode & (S_ISUID | S_ISGID));
+
+	vfsub_args_init(&vargs, NULL, dlgt, /*force_unlink*/0);
+	err = vfsub_notify_change(h_dst, &ia, &vargs);
+
+	/* is this nfs only? */
+	if (!err && sbits && au_test_nfs(h_dst->d_sb)) {
+		ia.ia_valid = ATTR_FORCE | ATTR_MODE;
+		ia.ia_mode = h_isrc->i_mode;
+		err = vfsub_notify_change(h_dst, &ia, &vargs);
+	}
+
+	if (!err)
+		h_idst->i_flags = h_isrc->i_flags; //??
+
+	AuTraceErr(err);
+	return err;
+}
+
+struct au_cpdown_dir_args {
+	struct dentry *parent;
+	unsigned int parent_opq; // bit-flags
+};
+
+static int au_cpdown_dir(struct dentry *dentry, aufs_bindex_t bdst,
+			 struct dentry *h_parent, void *arg)
+{
+	int err, parent_opq, whed, dlgt, do_opq, made_dir, diropq, rerr;
+	struct au_cpdown_dir_args *args = arg;
+	aufs_bindex_t bend, bopq, bstart;
+	struct dentry *h_dentry, *opq_dentry, *wh_dentry;
+	struct inode *h_dir, *h_inode, *inode;
+
+	LKTRTrace("%.*s, b%d\n", AuDLNPair(dentry), bdst);
+	bstart = au_dbstart(dentry);
+	AuDebugOn(bstart <= bdst
+		  && bdst <= au_dbend(dentry)
+		  && au_h_dptr(dentry, bdst));
+	AuDebugOn(!h_parent);
+	h_dir = h_parent->d_inode;
+	AuDebugOn(!h_dir);
+	IMustLock(h_dir);
+
+	err = au_lkup_neg(dentry, bdst);
+	if (unlikely(err < 0))
+		goto out;
+	h_dentry = au_h_dptr(dentry, bdst);
+	dlgt = !!au_opt_test_dlgt(au_mntflags(dentry->d_sb));
+	err = vfsub_sio_mkdir(h_dir, h_dentry, S_IRWXU | S_IRUGO | S_IXUGO,
+			      dlgt);
+	if (unlikely(err))
+		goto out_put;
+
+	made_dir = 1;
+	bend = au_dbend(dentry);
+	bopq = au_dbdiropq(dentry);
+	whed = (au_dbwh(dentry) == bdst);
+	if (!args->parent_opq)
+		args->parent_opq |= (bopq <= bdst);
+	parent_opq = (args->parent_opq && args->parent == dentry);
+	do_opq = 0;
+	diropq = 0;
+	h_inode = h_dentry->d_inode;
+	mutex_lock_nested(&h_inode->i_mutex, AuLsc_I_CHILD);
+	if (whed || (parent_opq && do_opq)) {
+		opq_dentry = au_diropq_create(dentry, bdst, dlgt);
+		err = PTR_ERR(opq_dentry);
+		if (IS_ERR(opq_dentry)) {
+			mutex_unlock(&h_inode->i_mutex);
+			goto out_dir;
+		}
+		dput(opq_dentry);
+		diropq = 1;
+	}
+
+	err = au_cpdown_attr(h_dentry, au_h_dptr(dentry, bstart), dlgt);
+	mutex_unlock(&h_inode->i_mutex);
+	if (unlikely(err))
+		goto out_opq;
+
+	wh_dentry = NULL;
+	if (whed) {
+		wh_dentry = au_wh_lkup(h_parent, &dentry->d_name, /*ndx*/NULL);
+		err = PTR_ERR(wh_dentry);
+		if (IS_ERR(wh_dentry))
+			goto out_opq;
+		err = 0;
+		if (wh_dentry->d_inode)
+			err = au_wh_unlink_dentry(h_dir, wh_dentry, dentry,
+						  NULL, dlgt);
+		dput(wh_dentry);
+		if (unlikely(err))
+			goto out_opq;
+	}
+
+	inode = dentry->d_inode;
+	if (au_ibend(inode) < bdst)
+		au_set_ibend(inode, bdst);
+	au_set_h_iptr(inode, bdst, igrab(h_inode), au_hi_flags(inode, 1));
+	goto out; /* success */
+
+	/* revert */
+ out_opq:
+	if (diropq) {
+		mutex_lock_nested(&h_inode->i_mutex, AuLsc_I_CHILD);
+		rerr = au_diropq_remove(dentry, bdst, dlgt);
+		mutex_unlock(&h_inode->i_mutex);
+		if (unlikely(rerr)) {
+			AuIOErr("failed removing diropq for %.*s b%d (%d)\n",
+				AuDLNPair(dentry), bdst, rerr);
+			err = -EIO;
+			goto out;
+		}
+	}
+ out_dir:
+	if (made_dir) {
+		rerr = vfsub_sio_rmdir(h_dir, h_dentry, dlgt);
+		if (unlikely(rerr)) {
+			AuIOErr("failed removing %.*s b%d (%d)\n",
+				AuDLNPair(dentry), bdst, rerr);
+			err = -EIO;
+		}
+	}
+ out_put:
+	au_set_h_dptr(dentry, bdst, NULL);
+	if (au_dbend(dentry) == bdst)
+		au_update_dbend(dentry);
+ out:
+	AuTraceErr(err);
+	return err;
+}
+
+int au_cpdown_dirs(struct dentry *dentry, aufs_bindex_t bdst,
+		   struct dentry *locked)
+{
+	int err;
+	struct au_cpdown_dir_args args = {
+		.parent		= dget_parent(dentry),
+		.parent_opq	= 0
+	};
+
+	LKTRTrace("%.*s, b%d\n", AuDLNPair(dentry), bdst);
+
+	err = au_cp_dirs(dentry, bdst, locked, au_cpdown_dir, &args);
+	dput(args.parent);
+
+	AuTraceErr(err);
+	return err;
+}
+
+/* ---------------------------------------------------------------------- */
+
+/* policies for create */
+
+static int au_wbr_bu(struct super_block *sb, aufs_bindex_t bindex)
+{
+	for (; bindex >= 0; bindex--)
+		if (!au_br_rdonly(au_sbr(sb, bindex)))
+			return bindex;
+	return -EROFS;
+}
+
+/* top down parent */
+static int au_wbr_create_tdp(struct dentry *dentry, int isdir)
+{
+	int err, dirperm1;
+	struct super_block *sb;
+	aufs_bindex_t bstart, bindex;
+	struct dentry *parent, *h_parent;
+	struct inode *h_dir;
+
+	LKTRTrace("%.*s, dir %d\n", AuDLNPair(dentry), isdir);
+
+	sb = dentry->d_sb;
+	dirperm1 = !!au_opt_test_dirperm1(au_mntflags(sb));
+	bstart = au_dbstart(dentry);
+	err = bstart;
+	if (!au_br_rdonly(au_sbr(sb, bstart)))
+		goto out;
+
+	err = -EROFS;
+	parent = dget_parent(dentry);
+	for (bindex = au_dbstart(parent); bindex < bstart; bindex++) {
+		h_parent = au_h_dptr(parent, bindex);
+		if (!h_parent)
+			continue;
+		h_dir = h_parent->d_inode;
+		if (!h_dir)
+			continue;
+
+		if (!au_br_rdonly(au_sbr(sb, bindex))
+		    && (!dirperm1
+			|| au_test_h_perm(h_dir, MAY_WRITE | MAY_EXEC,
+					  /*dlgt*/0))) {
+				err = bindex;
+				break;
+		}
+	}
+	dput(parent);
+
+	/* bottom up here */
+	if (unlikely(err < 0))
+		err = au_wbr_bu(sb, bstart - 1);
+
+ out:
+	LKTRTrace("b%d\n", err);
+	return err;
+}
+
+/* ---------------------------------------------------------------------- */
+
+/* an exception for the policy other than tdp */
+static int au_wbr_create_exp(struct dentry *dentry)
+{
+	int err;
+	struct dentry *parent;
+	aufs_bindex_t bwh, bdiropq;
+
+	LKTRTrace("%.*s\n", AuDLNPair(dentry));
+
+	err = -1;
+	bwh = au_dbwh(dentry);
+	parent = dget_parent(dentry);
+	bdiropq = au_dbdiropq(parent);
+	if (bwh >= 0) {
+		if (bdiropq >= 0)
+			err = min(bdiropq, bwh);
+		else
+			err = bwh;
+		LKTRTrace("%d\n", err);
+	} else if (bdiropq >= 0) {
+		err = bdiropq;
+		LKTRTrace("%d\n", err);
+	}
+	dput(parent);
+
+	if (err >= 0 && au_br_rdonly(au_sbr(dentry->d_sb, err)))
+		err = -1;
+
+	LKTRTrace("%d\n", err);
+	return err;
+}
+
+/* ---------------------------------------------------------------------- */
+
+/* round robin */
+static int au_wbr_create_init_rr(struct super_block *sb)
+{
+	int err;
+
+	err = au_wbr_bu(sb, au_sbend(sb));
+	atomic_set(&au_sbi(sb)->si_wbr_rr_next, -err); /* less important */
+
+	LKTRTrace("b%d\n", err);
+	return err;
+}
+
+static int au_wbr_create_rr(struct dentry *dentry, int isdir)
+{
+	int err, nbr;
+	struct super_block *sb;
+	atomic_t *next;
+	unsigned int u;
+	aufs_bindex_t bindex, bend;
+
+	//au_debug_on();
+	LKTRTrace("%.*s, dir %d\n", AuDLNPair(dentry), isdir);
+
+	sb = dentry->d_sb;
+	next = NULL;
+	err = au_wbr_create_exp(dentry);
+	if (err >= 0)
+		goto out;
+
+	next = &au_sbi(sb)->si_wbr_rr_next;
+	bend = au_sbend(sb);
+	nbr = bend + 1;
+	for (bindex = 0; bindex <= bend; bindex++) {
+		if (!isdir) {
+			err = atomic_dec_return(next) + 1;
+			/* modulo for 0 is meaningless */
+			if (unlikely(!err))
+				err = atomic_dec_return(next) + 1;
+		} else
+			err = atomic_read(next);
+		LKTRTrace("%d\n", err);
+		u = err;
+		err = u % nbr;
+		LKTRTrace("%d\n", err);
+		if (!au_br_rdonly(au_sbr(sb, err)))
+			break;
+		err = -EROFS;
+	}
+
+ out:
+	LKTRTrace("%d\n", err);
+	//au_debug_off();
+	return err;
+}
+
+/* ---------------------------------------------------------------------- */
+
+/* most free space */
+static void *au_wbr_statfs_arg(struct au_branch *br, struct super_block *sb,
+			       aufs_bindex_t bindex)
+{
+	struct super_block *h_sb;
+
+	h_sb = br->br_mnt->mnt_sb;
+
+	if (!au_test_nfs(h_sb))
+		return h_sb->s_root;
+
+	/* sigh,,, why nfs s_root has wrong inode? */
+	return au_di(sb->s_root)->di_hdentry[0 + bindex].hd_dentry;
+}
+
+static void au_mfs(struct dentry *dentry)
+{
+	struct super_block *sb;
+	aufs_bindex_t bindex, bend;
+	int dlgt, err;
+	struct kstatfs st;
+	u64 b, bavail;
+	void *arg;
+	struct au_branch *br;
+	struct au_wbr_mfs *mfs;
+
+	LKTRTrace("%.*s\n", AuDLNPair(dentry));
+
+	bavail = 0;
+	sb = dentry->d_sb;
+	mfs = &au_sbi(sb)->si_wbr_mfs;
+	mfs->mfs_bindex = -EROFS;
+	mfs->mfsrr_bytes = 0;
+	dlgt = !!au_opt_test_dlgt(au_mntflags(sb));
+	bend = au_sbend(sb);
+	for (bindex = 0; bindex <= bend; bindex++) {
+		br = au_sbr(sb, bindex);
+		if (au_br_rdonly(br))
+			continue;
+		arg = au_wbr_statfs_arg(br, sb, bindex);
+		if (!arg)
+			continue;
+
+		err = vfsub_statfs(arg, &st, dlgt);
+		LKTRTrace("b%d, %d, %Lu\n",
+			  bindex, err, (unsigned long long)st.f_bavail);
+		if (unlikely(err)) {
+			AuWarn1("failed statfs, b%d, %d\n", bindex, err);
+			continue;
+		}
+
+		/* when the available size is equal, select lower one */
+		b = st.f_bavail * st.f_bsize;
+		br->br_bytes = b;
+		if (b >= bavail) {
+			bavail = b;
+			mfs->mfs_bindex = bindex;
+			mfs->mfs_jiffy = jiffies;
+		}
+	}
+
+	mfs->mfsrr_bytes = bavail;
+	LKTRTrace("b%d\n", mfs->mfs_bindex);
+}
+
+static int au_wbr_create_mfs(struct dentry *dentry, int isdir)
+{
+	int err;
+	struct super_block *sb;
+	struct au_wbr_mfs *mfs;
+
+	//au_debug_on();
+	LKTRTrace("%.*s\n", AuDLNPair(dentry));
+
+	sb = dentry->d_sb;
+	err = au_wbr_create_exp(dentry);
+	if (err >= 0)
+		goto out;
+
+	mfs = &au_sbi(sb)->si_wbr_mfs;
+	mutex_lock(&mfs->mfs_lock);
+	if (unlikely(time_after(jiffies, mfs->mfs_jiffy + mfs->mfs_expire)
+		     || mfs->mfs_bindex < 0
+		     || au_br_rdonly(au_sbr(sb, mfs->mfs_bindex))))
+		au_mfs(dentry);
+	mutex_unlock(&mfs->mfs_lock);
+	err = mfs->mfs_bindex;
+
+ out:
+	LKTRTrace("b%d\n", err);
+	//au_debug_off();
+	return err;
+}
+
+static int au_wbr_create_init_mfs(struct super_block *sb)
+{
+	struct au_wbr_mfs *mfs;
+
+	mfs = &au_sbi(sb)->si_wbr_mfs;
+	LKTRTrace("expire %lu\n", mfs->mfs_expire);
+
+	mutex_init(&mfs->mfs_lock);
+	mfs->mfs_jiffy = 0;
+	mfs->mfs_bindex = -EROFS;
+
+	return 0;
+}
+
+static int au_wbr_create_fin_mfs(struct super_block *sb)
+{
+	AuTraceEnter();
+	mutex_destroy(&au_sbi(sb)->si_wbr_mfs.mfs_lock);
+	return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+/* most free space and then round robin */
+static int au_wbr_create_mfsrr(struct dentry *dentry, int isdir)
+{
+	int err;
+	struct au_wbr_mfs *mfs;
+
+	//au_debug_on();
+	LKTRTrace("%.*s, %d\n", AuDLNPair(dentry), isdir);
+
+	err = au_wbr_create_mfs(dentry, isdir);
+	if (err >= 0) {
+		mfs = &au_sbi(dentry->d_sb)->si_wbr_mfs;
+		LKTRTrace("%Lu bytes, %Lu wmark\n",
+			  mfs->mfsrr_bytes, mfs->mfsrr_watermark);
+		if (unlikely(mfs->mfsrr_bytes < mfs->mfsrr_watermark))
+			err = au_wbr_create_rr(dentry, isdir);
+	}
+
+	LKTRTrace("b%d\n", err);
+	//au_debug_off();
+	return err;
+}
+
+static int au_wbr_create_init_mfsrr(struct super_block *sb)
+{
+	int err;
+	//au_debug_on();
+	au_wbr_create_init_mfs(sb); /* ignore */
+	err = au_wbr_create_init_rr(sb);
+	//au_debug_off();
+	return err;
+}
+
+/* ---------------------------------------------------------------------- */
+
+/* top down parent and most free space */
+static int au_wbr_create_pmfs(struct dentry *dentry, int isdir)
+{
+	int err, e2, dirperm1;
+	struct super_block *sb;
+	struct dentry *parent, *h_parent;
+	aufs_bindex_t bindex, bstart, bend;
+	struct au_branch *br;
+	u64 b;
+	struct inode *h_dir;
+
+	//au_debug_on();
+	LKTRTrace("%.*s, %d\n", AuDLNPair(dentry), isdir);
+
+	err = au_wbr_create_tdp(dentry, isdir);
+	if (unlikely(err < 0))
+		goto out;
+	parent = dget_parent(dentry);
+	bstart = au_dbstart(parent);
+	bend = au_dbtaildir(parent);
+	if (bstart == bend)
+		goto out_parent; /* success */
+
+	e2 = au_wbr_create_mfs(dentry, isdir);
+	if (e2 < 0)
+		goto out_parent; /* success */
+
+	/* when the available size is equal, select upper one */
+	sb = dentry->d_sb;
+	br = au_sbr(sb, err);
+	dirperm1 = !!au_opt_test_dirperm1(au_mntflags(sb));
+	b = br->br_bytes;
+	LKTRTrace("b%d, %Lu\n", err, b);
+
+	if (unlikely(dirperm1)) {
+		for (bindex = bstart; bindex <= bend; bindex++) {
+			h_parent = au_h_dptr(parent, bindex);
+			if (!h_parent)
+				continue;
+			h_dir = h_parent->d_inode;
+			if (!h_dir)
+				continue;
+
+			br = au_sbr(sb, bindex);
+			if (!au_br_rdonly(br)
+			    && au_test_h_perm(h_dir, MAY_WRITE | MAY_EXEC,
+					      /*dlgt*/0)
+			    && br->br_bytes > b) {
+				b = br->br_bytes;
+				err = bindex;
+				LKTRTrace("b%d, %Lu\n", err, b);
+			}
+		}
+		if (err >= 0)
+			goto out_parent;
+	}
+	for (bindex = bstart; bindex <= bend; bindex++) {
+		h_parent = au_h_dptr(parent, bindex);
+		if (!h_parent || !h_parent->d_inode)
+			continue;
+
+		br = au_sbr(sb, bindex);
+		if (!au_br_rdonly(br) && br->br_bytes > b) {
+			b = br->br_bytes;
+			err = bindex;
+			LKTRTrace("b%d, %Lu\n", err, b);
+		}
+	}
+
+ out_parent:
+	dput(parent);
+ out:
+	LKTRTrace("b%d\n", err);
+	//au_debug_off();
+	return err;
+}
+
+/* ---------------------------------------------------------------------- */
+
+/* policies for copyup */
+
+/* top down parent */
+static int au_wbr_copyup_tdp(struct dentry *dentry)
+{
+	return au_wbr_create_tdp(dentry, /*isdir, anything is ok*/0);
+}
+
+/* bottom up parent */
+static int au_wbr_copyup_bup(struct dentry *dentry)
+{
+	int err, dirperm1;
+	struct dentry *parent, *h_parent;
+	aufs_bindex_t bindex, bstart;
+	struct super_block *sb;
+	struct inode *h_dir;
+
+	LKTRTrace("%.*s\n", AuDLNPair(dentry));
+
+	err = -EROFS;
+	sb = dentry->d_sb;
+	dirperm1 = !!au_opt_test_dirperm1(au_mntflags(sb));
+	parent = dget_parent(dentry);
+	bstart = au_dbstart(parent);
+	for (bindex = au_dbstart(dentry); bindex >= bstart; bindex--) {
+		h_parent = au_h_dptr(parent, bindex);
+		if (!h_parent)
+			continue;
+		h_dir = h_parent->d_inode;
+		if (!h_dir)
+			continue;
+
+		if (!au_br_rdonly(au_sbr(sb, bindex))
+		    && (!dirperm1
+			|| au_test_h_perm(h_dir, MAY_WRITE | MAY_EXEC,
+					  /*dlgt*/0))) {
+			err = bindex;
+			break;
+		}
+	}
+	dput(parent);
+
+	/* bottom up here */
+	if (unlikely(err < 0))
+		err = au_wbr_bu(sb, bstart - 1);
+
+	LKTRTrace("b%d\n", err);
+	return err;
+}
+
+/* bottom up */
+static int au_wbr_copyup_bu(struct dentry *dentry)
+{
+	int err;
+
+	LKTRTrace("%.*s\n", AuDLNPair(dentry));
+
+	err = au_wbr_bu(dentry->d_sb, au_dbstart(dentry));
+
+	LKTRTrace("b%d\n", err);
+	return err;
+}
+
+/* ---------------------------------------------------------------------- */
+
+struct au_wbr_copyup_operations au_wbr_copyup_ops[] = {
+	[AuWbrCopyup_TDP] = {
+		.copyup	= au_wbr_copyup_tdp
+	},
+	[AuWbrCopyup_BUP] = {
+		.copyup	= au_wbr_copyup_bup
+	},
+	[AuWbrCopyup_BU] = {
+		.copyup	= au_wbr_copyup_bu
+	}
+};
+
+struct au_wbr_create_operations au_wbr_create_ops[] = {
+	[AuWbrCreate_TDP] = {
+		.create	= au_wbr_create_tdp
+	},
+	[AuWbrCreate_RR] = {
+		.create	= au_wbr_create_rr,
+		.init	= au_wbr_create_init_rr
+	},
+	[AuWbrCreate_MFS] = {
+		.create	= au_wbr_create_mfs,
+		.init	= au_wbr_create_init_mfs,
+		.fin	= au_wbr_create_fin_mfs
+	},
+	[AuWbrCreate_MFSV] = {
+		.create	= au_wbr_create_mfs,
+		.init	= au_wbr_create_init_mfs,
+		.fin	= au_wbr_create_fin_mfs
+	},
+	[AuWbrCreate_MFSRR] = {
+		.create	= au_wbr_create_mfsrr,
+		.init	= au_wbr_create_init_mfsrr,
+		.fin	= au_wbr_create_fin_mfs
+	},
+	[AuWbrCreate_MFSRRV] = {
+		.create	= au_wbr_create_mfsrr,
+		.init	= au_wbr_create_init_mfsrr,
+		.fin	= au_wbr_create_fin_mfs
+	},
+	[AuWbrCreate_PMFS] = {
+		.create	= au_wbr_create_pmfs,
+		.init	= au_wbr_create_init_mfs,
+		.fin	= au_wbr_create_fin_mfs
+	},
+	[AuWbrCreate_PMFSV] = {
+		.create	= au_wbr_create_pmfs,
+		.init	= au_wbr_create_init_mfs,
+		.fin	= au_wbr_create_fin_mfs
+	}
+};
-- 
1.4.4.4