Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 1623 deletions

diff --git a/ANDROID_3.4.5/fs/gfs2/quota.c b/ANDROID_3.4.5/fs/gfs2/quota.c
deleted file mode 100644
index 6019da3d..00000000
--- a/ANDROID_3.4.5/fs/gfs2/quota.c
+++ /dev/null
@@ -1,1623 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-/*
- * Quota change tags are associated with each transaction that allocates or
- * deallocates space.  Those changes are accumulated locally to each node (in a
- * per-node file) and then are periodically synced to the quota file.  This
- * avoids the bottleneck of constantly touching the quota file, but introduces
- * fuzziness in the current usage value of IDs that are being used on different
- * nodes in the cluster simultaneously.  So, it is possible for a user on
- * multiple nodes to overrun their quota, but that overrun is controlable.
- * Since quota tags are part of transactions, there is no need for a quota check
- * program to be run on node crashes or anything like that.
- *
- * There are couple of knobs that let the administrator manage the quota
- * fuzziness.  "quota_quantum" sets the maximum time a quota change can be
- * sitting on one node before being synced to the quota file.  (The default is
- * 60 seconds.)  Another knob, "quota_scale" controls how quickly the frequency
- * of quota file syncs increases as the user moves closer to their limit.  The
- * more frequent the syncs, the more accurate the quota enforcement, but that
- * means that there is more contention between the nodes for the quota file.
- * The default value is one.  This sets the maximum theoretical quota overrun
- * (with infinite node with infinite bandwidth) to twice the user's limit.  (In
- * practice, the maximum overrun you see should be much less.)  A "quota_scale"
- * number greater than one makes quota syncs more frequent and reduces the
- * maximum overrun.  Numbers less than one (but greater than zero) make quota
- * syncs less frequent.
- *
- * GFS quotas also use per-ID Lock Value Blocks (LVBs) to cache the contents of
- * the quota file, so it is not being constantly read.
- */
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/spinlock.h>
-#include <linux/completion.h>
-#include <linux/buffer_head.h>
-#include <linux/sort.h>
-#include <linux/fs.h>
-#include <linux/bio.h>
-#include <linux/gfs2_ondisk.h>
-#include <linux/kthread.h>
-#include <linux/freezer.h>
-#include <linux/quota.h>
-#include <linux/dqblk_xfs.h>
-
-#include "gfs2.h"
-#include "incore.h"
-#include "bmap.h"
-#include "glock.h"
-#include "glops.h"
-#include "log.h"
-#include "meta_io.h"
-#include "quota.h"
-#include "rgrp.h"
-#include "super.h"
-#include "trans.h"
-#include "inode.h"
-#include "util.h"
-
-#define QUOTA_USER 1
-#define QUOTA_GROUP 0
-
-struct gfs2_quota_change_host {
-	u64 qc_change;
-	u32 qc_flags; /* GFS2_QCF_... */
-	u32 qc_id;
-};
-
-static LIST_HEAD(qd_lru_list);
-static atomic_t qd_lru_count = ATOMIC_INIT(0);
-static DEFINE_SPINLOCK(qd_lru_lock);
-
-int gfs2_shrink_qd_memory(struct shrinker *shrink, struct shrink_control *sc)
-{
-	struct gfs2_quota_data *qd;
-	struct gfs2_sbd *sdp;
-	int nr_to_scan = sc->nr_to_scan;
-
-	if (nr_to_scan == 0)
-		goto out;
-
-	if (!(sc->gfp_mask & __GFP_FS))
-		return -1;
-
-	spin_lock(&qd_lru_lock);
-	while (nr_to_scan && !list_empty(&qd_lru_list)) {
-		qd = list_entry(qd_lru_list.next,
-				struct gfs2_quota_data, qd_reclaim);
-		sdp = qd->qd_gl->gl_sbd;
-
-		/* Free from the filesystem-specific list */
-		list_del(&qd->qd_list);
-
-		gfs2_assert_warn(sdp, !qd->qd_change);
-		gfs2_assert_warn(sdp, !qd->qd_slot_count);
-		gfs2_assert_warn(sdp, !qd->qd_bh_count);
-
-		gfs2_glock_put(qd->qd_gl);
-		atomic_dec(&sdp->sd_quota_count);
-
-		/* Delete it from the common reclaim list */
-		list_del_init(&qd->qd_reclaim);
-		atomic_dec(&qd_lru_count);
-		spin_unlock(&qd_lru_lock);
-		kmem_cache_free(gfs2_quotad_cachep, qd);
-		spin_lock(&qd_lru_lock);
-		nr_to_scan--;
-	}
-	spin_unlock(&qd_lru_lock);
-
-out:
-	return (atomic_read(&qd_lru_count) * sysctl_vfs_cache_pressure) / 100;
-}
-
-static u64 qd2offset(struct gfs2_quota_data *qd)
-{
-	u64 offset;
-
-	offset = 2 * (u64)qd->qd_id + !test_bit(QDF_USER, &qd->qd_flags);
-	offset *= sizeof(struct gfs2_quota);
-
-	return offset;
-}
-
-static int qd_alloc(struct gfs2_sbd *sdp, int user, u32 id,
-		    struct gfs2_quota_data **qdp)
-{
-	struct gfs2_quota_data *qd;
-	int error;
-
-	qd = kmem_cache_zalloc(gfs2_quotad_cachep, GFP_NOFS);
-	if (!qd)
-		return -ENOMEM;
-
-	atomic_set(&qd->qd_count, 1);
-	qd->qd_id = id;
-	if (user)
-		set_bit(QDF_USER, &qd->qd_flags);
-	qd->qd_slot = -1;
-	INIT_LIST_HEAD(&qd->qd_reclaim);
-
-	error = gfs2_glock_get(sdp, 2 * (u64)id + !user,
-			      &gfs2_quota_glops, CREATE, &qd->qd_gl);
-	if (error)
-		goto fail;
-
-	*qdp = qd;
-
-	return 0;
-
-fail:
-	kmem_cache_free(gfs2_quotad_cachep, qd);
-	return error;
-}
-
-static int qd_get(struct gfs2_sbd *sdp, int user, u32 id,
-		  struct gfs2_quota_data **qdp)
-{
-	struct gfs2_quota_data *qd = NULL, *new_qd = NULL;
-	int error, found;
-
-	*qdp = NULL;
-
-	for (;;) {
-		found = 0;
-		spin_lock(&qd_lru_lock);
-		list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) {
-			if (qd->qd_id == id &&
-			    !test_bit(QDF_USER, &qd->qd_flags) == !user) {
-				if (!atomic_read(&qd->qd_count) &&
-				    !list_empty(&qd->qd_reclaim)) {
-					/* Remove it from reclaim list */
-					list_del_init(&qd->qd_reclaim);
-					atomic_dec(&qd_lru_count);
-				}
-				atomic_inc(&qd->qd_count);
-				found = 1;
-				break;
-			}
-		}
-
-		if (!found)
-			qd = NULL;
-
-		if (!qd && new_qd) {
-			qd = new_qd;
-			list_add(&qd->qd_list, &sdp->sd_quota_list);
-			atomic_inc(&sdp->sd_quota_count);
-			new_qd = NULL;
-		}
-
-		spin_unlock(&qd_lru_lock);
-
-		if (qd) {
-			if (new_qd) {
-				gfs2_glock_put(new_qd->qd_gl);
-				kmem_cache_free(gfs2_quotad_cachep, new_qd);
-			}
-			*qdp = qd;
-			return 0;
-		}
-
-		error = qd_alloc(sdp, user, id, &new_qd);
-		if (error)
-			return error;
-	}
-}
-
-static void qd_hold(struct gfs2_quota_data *qd)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-	gfs2_assert(sdp, atomic_read(&qd->qd_count));
-	atomic_inc(&qd->qd_count);
-}
-
-static void qd_put(struct gfs2_quota_data *qd)
-{
-	if (atomic_dec_and_lock(&qd->qd_count, &qd_lru_lock)) {
-		/* Add to the reclaim list */
-		list_add_tail(&qd->qd_reclaim, &qd_lru_list);
-		atomic_inc(&qd_lru_count);
-		spin_unlock(&qd_lru_lock);
-	}
-}
-
-static int slot_get(struct gfs2_quota_data *qd)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-	unsigned int c, o = 0, b;
-	unsigned char byte = 0;
-
-	spin_lock(&qd_lru_lock);
-
-	if (qd->qd_slot_count++) {
-		spin_unlock(&qd_lru_lock);
-		return 0;
-	}
-
-	for (c = 0; c < sdp->sd_quota_chunks; c++)
-		for (o = 0; o < PAGE_SIZE; o++) {
-			byte = sdp->sd_quota_bitmap[c][o];
-			if (byte != 0xFF)
-				goto found;
-		}
-
-	goto fail;
-
-found:
-	for (b = 0; b < 8; b++)
-		if (!(byte & (1 << b)))
-			break;
-	qd->qd_slot = c * (8 * PAGE_SIZE) + o * 8 + b;
-
-	if (qd->qd_slot >= sdp->sd_quota_slots)
-		goto fail;
-
-	sdp->sd_quota_bitmap[c][o] |= 1 << b;
-
-	spin_unlock(&qd_lru_lock);
-
-	return 0;
-
-fail:
-	qd->qd_slot_count--;
-	spin_unlock(&qd_lru_lock);
-	return -ENOSPC;
-}
-
-static void slot_hold(struct gfs2_quota_data *qd)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-
-	spin_lock(&qd_lru_lock);
-	gfs2_assert(sdp, qd->qd_slot_count);
-	qd->qd_slot_count++;
-	spin_unlock(&qd_lru_lock);
-}
-
-static void slot_put(struct gfs2_quota_data *qd)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-
-	spin_lock(&qd_lru_lock);
-	gfs2_assert(sdp, qd->qd_slot_count);
-	if (!--qd->qd_slot_count) {
-		gfs2_icbit_munge(sdp, sdp->sd_quota_bitmap, qd->qd_slot, 0);
-		qd->qd_slot = -1;
-	}
-	spin_unlock(&qd_lru_lock);
-}
-
-static int bh_get(struct gfs2_quota_data *qd)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-	struct gfs2_inode *ip = GFS2_I(sdp->sd_qc_inode);
-	unsigned int block, offset;
-	struct buffer_head *bh;
-	int error;
-	struct buffer_head bh_map = { .b_state = 0, .b_blocknr = 0 };
-
-	mutex_lock(&sdp->sd_quota_mutex);
-
-	if (qd->qd_bh_count++) {
-		mutex_unlock(&sdp->sd_quota_mutex);
-		return 0;
-	}
-
-	block = qd->qd_slot / sdp->sd_qc_per_block;
-	offset = qd->qd_slot % sdp->sd_qc_per_block;
-
-	bh_map.b_size = 1 << ip->i_inode.i_blkbits;
-	error = gfs2_block_map(&ip->i_inode, block, &bh_map, 0);
-	if (error)
-		goto fail;
-	error = gfs2_meta_read(ip->i_gl, bh_map.b_blocknr, DIO_WAIT, &bh);
-	if (error)
-		goto fail;
-	error = -EIO;
-	if (gfs2_metatype_check(sdp, bh, GFS2_METATYPE_QC))
-		goto fail_brelse;
-
-	qd->qd_bh = bh;
-	qd->qd_bh_qc = (struct gfs2_quota_change *)
-		(bh->b_data + sizeof(struct gfs2_meta_header) +
-		 offset * sizeof(struct gfs2_quota_change));
-
-	mutex_unlock(&sdp->sd_quota_mutex);
-
-	return 0;
-
-fail_brelse:
-	brelse(bh);
-fail:
-	qd->qd_bh_count--;
-	mutex_unlock(&sdp->sd_quota_mutex);
-	return error;
-}
-
-static void bh_put(struct gfs2_quota_data *qd)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-
-	mutex_lock(&sdp->sd_quota_mutex);
-	gfs2_assert(sdp, qd->qd_bh_count);
-	if (!--qd->qd_bh_count) {
-		brelse(qd->qd_bh);
-		qd->qd_bh = NULL;
-		qd->qd_bh_qc = NULL;
-	}
-	mutex_unlock(&sdp->sd_quota_mutex);
-}
-
-static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
-{
-	struct gfs2_quota_data *qd = NULL;
-	int error;
-	int found = 0;
-
-	*qdp = NULL;
-
-	if (sdp->sd_vfs->s_flags & MS_RDONLY)
-		return 0;
-
-	spin_lock(&qd_lru_lock);
-
-	list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) {
-		if (test_bit(QDF_LOCKED, &qd->qd_flags) ||
-		    !test_bit(QDF_CHANGE, &qd->qd_flags) ||
-		    qd->qd_sync_gen >= sdp->sd_quota_sync_gen)
-			continue;
-
-		list_move_tail(&qd->qd_list, &sdp->sd_quota_list);
-
-		set_bit(QDF_LOCKED, &qd->qd_flags);
-		gfs2_assert_warn(sdp, atomic_read(&qd->qd_count));
-		atomic_inc(&qd->qd_count);
-		qd->qd_change_sync = qd->qd_change;
-		gfs2_assert_warn(sdp, qd->qd_slot_count);
-		qd->qd_slot_count++;
-		found = 1;
-
-		break;
-	}
-
-	if (!found)
-		qd = NULL;
-
-	spin_unlock(&qd_lru_lock);
-
-	if (qd) {
-		gfs2_assert_warn(sdp, qd->qd_change_sync);
-		error = bh_get(qd);
-		if (error) {
-			clear_bit(QDF_LOCKED, &qd->qd_flags);
-			slot_put(qd);
-			qd_put(qd);
-			return error;
-		}
-	}
-
-	*qdp = qd;
-
-	return 0;
-}
-
-static int qd_trylock(struct gfs2_quota_data *qd)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-
-	if (sdp->sd_vfs->s_flags & MS_RDONLY)
-		return 0;
-
-	spin_lock(&qd_lru_lock);
-
-	if (test_bit(QDF_LOCKED, &qd->qd_flags) ||
-	    !test_bit(QDF_CHANGE, &qd->qd_flags)) {
-		spin_unlock(&qd_lru_lock);
-		return 0;
-	}
-
-	list_move_tail(&qd->qd_list, &sdp->sd_quota_list);
-
-	set_bit(QDF_LOCKED, &qd->qd_flags);
-	gfs2_assert_warn(sdp, atomic_read(&qd->qd_count));
-	atomic_inc(&qd->qd_count);
-	qd->qd_change_sync = qd->qd_change;
-	gfs2_assert_warn(sdp, qd->qd_slot_count);
-	qd->qd_slot_count++;
-
-	spin_unlock(&qd_lru_lock);
-
-	gfs2_assert_warn(sdp, qd->qd_change_sync);
-	if (bh_get(qd)) {
-		clear_bit(QDF_LOCKED, &qd->qd_flags);
-		slot_put(qd);
-		qd_put(qd);
-		return 0;
-	}
-
-	return 1;
-}
-
-static void qd_unlock(struct gfs2_quota_data *qd)
-{
-	gfs2_assert_warn(qd->qd_gl->gl_sbd,
-			 test_bit(QDF_LOCKED, &qd->qd_flags));
-	clear_bit(QDF_LOCKED, &qd->qd_flags);
-	bh_put(qd);
-	slot_put(qd);
-	qd_put(qd);
-}
-
-static int qdsb_get(struct gfs2_sbd *sdp, int user, u32 id,
-		    struct gfs2_quota_data **qdp)
-{
-	int error;
-
-	error = qd_get(sdp, user, id, qdp);
-	if (error)
-		return error;
-
-	error = slot_get(*qdp);
-	if (error)
-		goto fail;
-
-	error = bh_get(*qdp);
-	if (error)
-		goto fail_slot;
-
-	return 0;
-
-fail_slot:
-	slot_put(*qdp);
-fail:
-	qd_put(*qdp);
-	return error;
-}
-
-static void qdsb_put(struct gfs2_quota_data *qd)
-{
-	bh_put(qd);
-	slot_put(qd);
-	qd_put(qd);
-}
-
-int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct gfs2_qadata *qa = ip->i_qadata;
-	struct gfs2_quota_data **qd = qa->qa_qd;
-	int error;
-
-	if (gfs2_assert_warn(sdp, !qa->qa_qd_num) ||
-	    gfs2_assert_warn(sdp, !test_bit(GIF_QD_LOCKED, &ip->i_flags)))
-		return -EIO;
-
-	if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
-		return 0;
-
-	error = qdsb_get(sdp, QUOTA_USER, ip->i_inode.i_uid, qd);
-	if (error)
-		goto out;
-	qa->qa_qd_num++;
-	qd++;
-
-	error = qdsb_get(sdp, QUOTA_GROUP, ip->i_inode.i_gid, qd);
-	if (error)
-		goto out;
-	qa->qa_qd_num++;
-	qd++;
-
-	if (uid != NO_QUOTA_CHANGE && uid != ip->i_inode.i_uid) {
-		error = qdsb_get(sdp, QUOTA_USER, uid, qd);
-		if (error)
-			goto out;
-		qa->qa_qd_num++;
-		qd++;
-	}
-
-	if (gid != NO_QUOTA_CHANGE && gid != ip->i_inode.i_gid) {
-		error = qdsb_get(sdp, QUOTA_GROUP, gid, qd);
-		if (error)
-			goto out;
-		qa->qa_qd_num++;
-		qd++;
-	}
-
-out:
-	if (error)
-		gfs2_quota_unhold(ip);
-	return error;
-}
-
-void gfs2_quota_unhold(struct gfs2_inode *ip)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct gfs2_qadata *qa = ip->i_qadata;
-	unsigned int x;
-
-	gfs2_assert_warn(sdp, !test_bit(GIF_QD_LOCKED, &ip->i_flags));
-
-	for (x = 0; x < qa->qa_qd_num; x++) {
-		qdsb_put(qa->qa_qd[x]);
-		qa->qa_qd[x] = NULL;
-	}
-	qa->qa_qd_num = 0;
-}
-
-static int sort_qd(const void *a, const void *b)
-{
-	const struct gfs2_quota_data *qd_a = *(const struct gfs2_quota_data **)a;
-	const struct gfs2_quota_data *qd_b = *(const struct gfs2_quota_data **)b;
-
-	if (!test_bit(QDF_USER, &qd_a->qd_flags) !=
-	    !test_bit(QDF_USER, &qd_b->qd_flags)) {
-		if (test_bit(QDF_USER, &qd_a->qd_flags))
-			return -1;
-		else
-			return 1;
-	}
-	if (qd_a->qd_id < qd_b->qd_id)
-		return -1;
-	if (qd_a->qd_id > qd_b->qd_id)
-		return 1;
-
-	return 0;
-}
-
-static void do_qc(struct gfs2_quota_data *qd, s64 change)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-	struct gfs2_inode *ip = GFS2_I(sdp->sd_qc_inode);
-	struct gfs2_quota_change *qc = qd->qd_bh_qc;
-	s64 x;
-
-	mutex_lock(&sdp->sd_quota_mutex);
-	gfs2_trans_add_bh(ip->i_gl, qd->qd_bh, 1);
-
-	if (!test_bit(QDF_CHANGE, &qd->qd_flags)) {
-		qc->qc_change = 0;
-		qc->qc_flags = 0;
-		if (test_bit(QDF_USER, &qd->qd_flags))
-			qc->qc_flags = cpu_to_be32(GFS2_QCF_USER);
-		qc->qc_id = cpu_to_be32(qd->qd_id);
-	}
-
-	x = be64_to_cpu(qc->qc_change) + change;
-	qc->qc_change = cpu_to_be64(x);
-
-	spin_lock(&qd_lru_lock);
-	qd->qd_change = x;
-	spin_unlock(&qd_lru_lock);
-
-	if (!x) {
-		gfs2_assert_warn(sdp, test_bit(QDF_CHANGE, &qd->qd_flags));
-		clear_bit(QDF_CHANGE, &qd->qd_flags);
-		qc->qc_flags = 0;
-		qc->qc_id = 0;
-		slot_put(qd);
-		qd_put(qd);
-	} else if (!test_and_set_bit(QDF_CHANGE, &qd->qd_flags)) {
-		qd_hold(qd);
-		slot_hold(qd);
-	}
-
-	mutex_unlock(&sdp->sd_quota_mutex);
-}
-
-/**
- * gfs2_adjust_quota - adjust record of current block usage
- * @ip: The quota inode
- * @loc: Offset of the entry in the quota file
- * @change: The amount of usage change to record
- * @qd: The quota data
- * @fdq: The updated limits to record
- *
- * This function was mostly borrowed from gfs2_block_truncate_page which was
- * in turn mostly borrowed from ext3
- *
- * Returns: 0 or -ve on error
- */
-
-static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
-			     s64 change, struct gfs2_quota_data *qd,
-			     struct fs_disk_quota *fdq)
-{
-	struct inode *inode = &ip->i_inode;
-	struct gfs2_sbd *sdp = GFS2_SB(inode);
-	struct address_space *mapping = inode->i_mapping;
-	unsigned long index = loc >> PAGE_CACHE_SHIFT;
-	unsigned offset = loc & (PAGE_CACHE_SIZE - 1);
-	unsigned blocksize, iblock, pos;
-	struct buffer_head *bh;
-	struct page *page;
-	void *kaddr, *ptr;
-	struct gfs2_quota q, *qp;
-	int err, nbytes;
-	u64 size;
-
-	if (gfs2_is_stuffed(ip)) {
-		err = gfs2_unstuff_dinode(ip, NULL);
-		if (err)
-			return err;
-	}
-
-	memset(&q, 0, sizeof(struct gfs2_quota));
-	err = gfs2_internal_read(ip, NULL, (char *)&q, &loc, sizeof(q));
-	if (err < 0)
-		return err;
-
-	err = -EIO;
-	qp = &q;
-	qp->qu_value = be64_to_cpu(qp->qu_value);
-	qp->qu_value += change;
-	qp->qu_value = cpu_to_be64(qp->qu_value);
-	qd->qd_qb.qb_value = qp->qu_value;
-	if (fdq) {
-		if (fdq->d_fieldmask & FS_DQ_BSOFT) {
-			qp->qu_warn = cpu_to_be64(fdq->d_blk_softlimit >> sdp->sd_fsb2bb_shift);
-			qd->qd_qb.qb_warn = qp->qu_warn;
-		}
-		if (fdq->d_fieldmask & FS_DQ_BHARD) {
-			qp->qu_limit = cpu_to_be64(fdq->d_blk_hardlimit >> sdp->sd_fsb2bb_shift);
-			qd->qd_qb.qb_limit = qp->qu_limit;
-		}
-		if (fdq->d_fieldmask & FS_DQ_BCOUNT) {
-			qp->qu_value = cpu_to_be64(fdq->d_bcount >> sdp->sd_fsb2bb_shift);
-			qd->qd_qb.qb_value = qp->qu_value;
-		}
-	}
-
-	/* Write the quota into the quota file on disk */
-	ptr = qp;
-	nbytes = sizeof(struct gfs2_quota);
-get_a_page:
-	page = find_or_create_page(mapping, index, GFP_NOFS);
-	if (!page)
-		return -ENOMEM;
-
-	blocksize = inode->i_sb->s_blocksize;
-	iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
-
-	if (!page_has_buffers(page))
-		create_empty_buffers(page, blocksize, 0);
-
-	bh = page_buffers(page);
-	pos = blocksize;
-	while (offset >= pos) {
-		bh = bh->b_this_page;
-		iblock++;
-		pos += blocksize;
-	}
-
-	if (!buffer_mapped(bh)) {
-		gfs2_block_map(inode, iblock, bh, 1);
-		if (!buffer_mapped(bh))
-			goto unlock_out;
-		/* If it's a newly allocated disk block for quota, zero it */
-		if (buffer_new(bh))
-			zero_user(page, pos - blocksize, bh->b_size);
-	}
-
-	if (PageUptodate(page))
-		set_buffer_uptodate(bh);
-
-	if (!buffer_uptodate(bh)) {
-		ll_rw_block(READ | REQ_META, 1, &bh);
-		wait_on_buffer(bh);
-		if (!buffer_uptodate(bh))
-			goto unlock_out;
-	}
-
-	gfs2_trans_add_bh(ip->i_gl, bh, 0);
-
-	kaddr = kmap_atomic(page);
-	if (offset + sizeof(struct gfs2_quota) > PAGE_CACHE_SIZE)
-		nbytes = PAGE_CACHE_SIZE - offset;
-	memcpy(kaddr + offset, ptr, nbytes);
-	flush_dcache_page(page);
-	kunmap_atomic(kaddr);
-	unlock_page(page);
-	page_cache_release(page);
-
-	/* If quota straddles page boundary, we need to update the rest of the
-	 * quota at the beginning of the next page */
-	if ((offset + sizeof(struct gfs2_quota)) > PAGE_CACHE_SIZE) {
-		ptr = ptr + nbytes;
-		nbytes = sizeof(struct gfs2_quota) - nbytes;
-		offset = 0;
-		index++;
-		goto get_a_page;
-	}
-
-	size = loc + sizeof(struct gfs2_quota);
-	if (size > inode->i_size)
-		i_size_write(inode, size);
-	inode->i_mtime = inode->i_atime = CURRENT_TIME;
-	mark_inode_dirty(inode);
-	return err;
-
-unlock_out:
-	unlock_page(page);
-	page_cache_release(page);
-	return err;
-}
-
-static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
-{
-	struct gfs2_sbd *sdp = (*qda)->qd_gl->gl_sbd;
-	struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
-	unsigned int data_blocks, ind_blocks;
-	struct gfs2_holder *ghs, i_gh;
-	unsigned int qx, x;
-	struct gfs2_quota_data *qd;
-	loff_t offset;
-	unsigned int nalloc = 0, blocks;
-	int error;
-
-	gfs2_write_calc_reserv(ip, sizeof(struct gfs2_quota),
-			      &data_blocks, &ind_blocks);
-
-	ghs = kcalloc(num_qd, sizeof(struct gfs2_holder), GFP_NOFS);
-	if (!ghs)
-		return -ENOMEM;
-
-	sort(qda, num_qd, sizeof(struct gfs2_quota_data *), sort_qd, NULL);
-	mutex_lock_nested(&ip->i_inode.i_mutex, I_MUTEX_QUOTA);
-	for (qx = 0; qx < num_qd; qx++) {
-		error = gfs2_glock_nq_init(qda[qx]->qd_gl, LM_ST_EXCLUSIVE,
-					   GL_NOCACHE, &ghs[qx]);
-		if (error)
-			goto out;
-	}
-
-	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh);
-	if (error)
-		goto out;
-
-	for (x = 0; x < num_qd; x++) {
-		offset = qd2offset(qda[x]);
-		if (gfs2_write_alloc_required(ip, offset,
-					      sizeof(struct gfs2_quota)))
-			nalloc++;
-	}
-
-	/* 
-	 * 1 blk for unstuffing inode if stuffed. We add this extra
-	 * block to the reservation unconditionally. If the inode
-	 * doesn't need unstuffing, the block will be released to the 
-	 * rgrp since it won't be allocated during the transaction
-	 */
-	/* +3 in the end for unstuffing block, inode size update block
-	 * and another block in case quota straddles page boundary and 
-	 * two blocks need to be updated instead of 1 */
-	blocks = num_qd * data_blocks + RES_DINODE + num_qd + 3;
-
-	error = gfs2_inplace_reserve(ip, 1 +
-				     (nalloc * (data_blocks + ind_blocks)));
-	if (error)
-		goto out_alloc;
-
-	if (nalloc)
-		blocks += gfs2_rg_blocks(ip) + nalloc * ind_blocks + RES_STATFS;
-
-	error = gfs2_trans_begin(sdp, blocks, 0);
-	if (error)
-		goto out_ipres;
-
-	for (x = 0; x < num_qd; x++) {
-		qd = qda[x];
-		offset = qd2offset(qd);
-		error = gfs2_adjust_quota(ip, offset, qd->qd_change_sync, qd, NULL);
-		if (error)
-			goto out_end_trans;
-
-		do_qc(qd, -qd->qd_change_sync);
-		set_bit(QDF_REFRESH, &qd->qd_flags);
-	}
-
-	error = 0;
-
-out_end_trans:
-	gfs2_trans_end(sdp);
-out_ipres:
-	gfs2_inplace_release(ip);
-out_alloc:
-	gfs2_glock_dq_uninit(&i_gh);
-out:
-	while (qx--)
-		gfs2_glock_dq_uninit(&ghs[qx]);
-	mutex_unlock(&ip->i_inode.i_mutex);
-	kfree(ghs);
-	gfs2_log_flush(ip->i_gl->gl_sbd, ip->i_gl);
-	return error;
-}
-
-static int update_qd(struct gfs2_sbd *sdp, struct gfs2_quota_data *qd)
-{
-	struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
-	struct gfs2_quota q;
-	struct gfs2_quota_lvb *qlvb;
-	loff_t pos;
-	int error;
-
-	memset(&q, 0, sizeof(struct gfs2_quota));
-	pos = qd2offset(qd);
-	error = gfs2_internal_read(ip, NULL, (char *)&q, &pos, sizeof(q));
-	if (error < 0)
-		return error;
-
-	qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb;
-	qlvb->qb_magic = cpu_to_be32(GFS2_MAGIC);
-	qlvb->__pad = 0;
-	qlvb->qb_limit = q.qu_limit;
-	qlvb->qb_warn = q.qu_warn;
-	qlvb->qb_value = q.qu_value;
-	qd->qd_qb = *qlvb;
-
-	return 0;
-}
-
-static int do_glock(struct gfs2_quota_data *qd, int force_refresh,
-		    struct gfs2_holder *q_gh)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-	struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
-	struct gfs2_holder i_gh;
-	int error;
-
-restart:
-	error = gfs2_glock_nq_init(qd->qd_gl, LM_ST_SHARED, 0, q_gh);
-	if (error)
-		return error;
-
-	qd->qd_qb = *(struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb;
-
-	if (force_refresh || qd->qd_qb.qb_magic != cpu_to_be32(GFS2_MAGIC)) {
-		gfs2_glock_dq_uninit(q_gh);
-		error = gfs2_glock_nq_init(qd->qd_gl, LM_ST_EXCLUSIVE,
-					   GL_NOCACHE, q_gh);
-		if (error)
-			return error;
-
-		error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &i_gh);
-		if (error)
-			goto fail;
-
-		error = update_qd(sdp, qd);
-		if (error)
-			goto fail_gunlock;
-
-		gfs2_glock_dq_uninit(&i_gh);
-		gfs2_glock_dq_uninit(q_gh);
-		force_refresh = 0;
-		goto restart;
-	}
-
-	return 0;
-
-fail_gunlock:
-	gfs2_glock_dq_uninit(&i_gh);
-fail:
-	gfs2_glock_dq_uninit(q_gh);
-	return error;
-}
-
-int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct gfs2_qadata *qa = ip->i_qadata;
-	struct gfs2_quota_data *qd;
-	unsigned int x;
-	int error = 0;
-
-	error = gfs2_quota_hold(ip, uid, gid);
-	if (error)
-		return error;
-
-	if (capable(CAP_SYS_RESOURCE) ||
-	    sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
-		return 0;
-
-	sort(qa->qa_qd, qa->qa_qd_num, sizeof(struct gfs2_quota_data *),
-	     sort_qd, NULL);
-
-	for (x = 0; x < qa->qa_qd_num; x++) {
-		int force = NO_FORCE;
-		qd = qa->qa_qd[x];
-		if (test_and_clear_bit(QDF_REFRESH, &qd->qd_flags))
-			force = FORCE;
-		error = do_glock(qd, force, &qa->qa_qd_ghs[x]);
-		if (error)
-			break;
-	}
-
-	if (!error)
-		set_bit(GIF_QD_LOCKED, &ip->i_flags);
-	else {
-		while (x--)
-			gfs2_glock_dq_uninit(&qa->qa_qd_ghs[x]);
-		gfs2_quota_unhold(ip);
-	}
-
-	return error;
-}
-
-static int need_sync(struct gfs2_quota_data *qd)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-	struct gfs2_tune *gt = &sdp->sd_tune;
-	s64 value;
-	unsigned int num, den;
-	int do_sync = 1;
-
-	if (!qd->qd_qb.qb_limit)
-		return 0;
-
-	spin_lock(&qd_lru_lock);
-	value = qd->qd_change;
-	spin_unlock(&qd_lru_lock);
-
-	spin_lock(&gt->gt_spin);
-	num = gt->gt_quota_scale_num;
-	den = gt->gt_quota_scale_den;
-	spin_unlock(&gt->gt_spin);
-
-	if (value < 0)
-		do_sync = 0;
-	else if ((s64)be64_to_cpu(qd->qd_qb.qb_value) >=
-		 (s64)be64_to_cpu(qd->qd_qb.qb_limit))
-		do_sync = 0;
-	else {
-		value *= gfs2_jindex_size(sdp) * num;
-		value = div_s64(value, den);
-		value += (s64)be64_to_cpu(qd->qd_qb.qb_value);
-		if (value < (s64)be64_to_cpu(qd->qd_qb.qb_limit))
-			do_sync = 0;
-	}
-
-	return do_sync;
-}
-
-void gfs2_quota_unlock(struct gfs2_inode *ip)
-{
-	struct gfs2_qadata *qa = ip->i_qadata;
-	struct gfs2_quota_data *qda[4];
-	unsigned int count = 0;
-	unsigned int x;
-
-	if (!test_and_clear_bit(GIF_QD_LOCKED, &ip->i_flags))
-		goto out;
-
-	for (x = 0; x < qa->qa_qd_num; x++) {
-		struct gfs2_quota_data *qd;
-		int sync;
-
-		qd = qa->qa_qd[x];
-		sync = need_sync(qd);
-
-		gfs2_glock_dq_uninit(&qa->qa_qd_ghs[x]);
-
-		if (sync && qd_trylock(qd))
-			qda[count++] = qd;
-	}
-
-	if (count) {
-		do_sync(count, qda);
-		for (x = 0; x < count; x++)
-			qd_unlock(qda[x]);
-	}
-
-out:
-	gfs2_quota_unhold(ip);
-}
-
-#define MAX_LINE 256
-
-static int print_message(struct gfs2_quota_data *qd, char *type)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-
-	printk(KERN_INFO "GFS2: fsid=%s: quota %s for %s %u\n",
-	       sdp->sd_fsname, type,
-	       (test_bit(QDF_USER, &qd->qd_flags)) ? "user" : "group",
-	       qd->qd_id);
-
-	return 0;
-}
-
-int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct gfs2_qadata *qa = ip->i_qadata;
-	struct gfs2_quota_data *qd;
-	s64 value;
-	unsigned int x;
-	int error = 0;
-
-	if (!test_bit(GIF_QD_LOCKED, &ip->i_flags))
-		return 0;
-
-        if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
-                return 0;
-
-	for (x = 0; x < qa->qa_qd_num; x++) {
-		qd = qa->qa_qd[x];
-
-		if (!((qd->qd_id == uid && test_bit(QDF_USER, &qd->qd_flags)) ||
-		      (qd->qd_id == gid && !test_bit(QDF_USER, &qd->qd_flags))))
-			continue;
-
-		value = (s64)be64_to_cpu(qd->qd_qb.qb_value);
-		spin_lock(&qd_lru_lock);
-		value += qd->qd_change;
-		spin_unlock(&qd_lru_lock);
-
-		if (be64_to_cpu(qd->qd_qb.qb_limit) && (s64)be64_to_cpu(qd->qd_qb.qb_limit) < value) {
-			print_message(qd, "exceeded");
-			quota_send_warning(test_bit(QDF_USER, &qd->qd_flags) ?
-					   USRQUOTA : GRPQUOTA, qd->qd_id,
-					   sdp->sd_vfs->s_dev, QUOTA_NL_BHARDWARN);
-
-			error = -EDQUOT;
-			break;
-		} else if (be64_to_cpu(qd->qd_qb.qb_warn) &&
-			   (s64)be64_to_cpu(qd->qd_qb.qb_warn) < value &&
-			   time_after_eq(jiffies, qd->qd_last_warn +
-					 gfs2_tune_get(sdp,
-						gt_quota_warn_period) * HZ)) {
-			quota_send_warning(test_bit(QDF_USER, &qd->qd_flags) ?
-					   USRQUOTA : GRPQUOTA, qd->qd_id,
-					   sdp->sd_vfs->s_dev, QUOTA_NL_BSOFTWARN);
-			error = print_message(qd, "warning");
-			qd->qd_last_warn = jiffies;
-		}
-	}
-
-	return error;
-}
-
-void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
-		       u32 uid, u32 gid)
-{
-	struct gfs2_qadata *qa = ip->i_qadata;
-	struct gfs2_quota_data *qd;
-	unsigned int x;
-
-	if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), change))
-		return;
-	if (ip->i_diskflags & GFS2_DIF_SYSTEM)
-		return;
-
-	for (x = 0; x < qa->qa_qd_num; x++) {
-		qd = qa->qa_qd[x];
-
-		if ((qd->qd_id == uid && test_bit(QDF_USER, &qd->qd_flags)) ||
-		    (qd->qd_id == gid && !test_bit(QDF_USER, &qd->qd_flags))) {
-			do_qc(qd, change);
-		}
-	}
-}
-
-int gfs2_quota_sync(struct super_block *sb, int type, int wait)
-{
-	struct gfs2_sbd *sdp = sb->s_fs_info;
-	struct gfs2_quota_data **qda;
-	unsigned int max_qd = gfs2_tune_get(sdp, gt_quota_simul_sync);
-	unsigned int num_qd;
-	unsigned int x;
-	int error = 0;
-
-	sdp->sd_quota_sync_gen++;
-
-	qda = kcalloc(max_qd, sizeof(struct gfs2_quota_data *), GFP_KERNEL);
-	if (!qda)
-		return -ENOMEM;
-
-	do {
-		num_qd = 0;
-
-		for (;;) {
-			error = qd_fish(sdp, qda + num_qd);
-			if (error || !qda[num_qd])
-				break;
-			if (++num_qd == max_qd)
-				break;
-		}
-
-		if (num_qd) {
-			if (!error)
-				error = do_sync(num_qd, qda);
-			if (!error)
-				for (x = 0; x < num_qd; x++)
-					qda[x]->qd_sync_gen =
-						sdp->sd_quota_sync_gen;
-
-			for (x = 0; x < num_qd; x++)
-				qd_unlock(qda[x]);
-		}
-	} while (!error && num_qd == max_qd);
-
-	kfree(qda);
-
-	return error;
-}
-
-static int gfs2_quota_sync_timeo(struct super_block *sb, int type)
-{
-	return gfs2_quota_sync(sb, type, 0);
-}
-
-int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id)
-{
-	struct gfs2_quota_data *qd;
-	struct gfs2_holder q_gh;
-	int error;
-
-	error = qd_get(sdp, user, id, &qd);
-	if (error)
-		return error;
-
-	error = do_glock(qd, FORCE, &q_gh);
-	if (!error)
-		gfs2_glock_dq_uninit(&q_gh);
-
-	qd_put(qd);
-	return error;
-}
-
-static void gfs2_quota_change_in(struct gfs2_quota_change_host *qc, const void *buf)
-{
-	const struct gfs2_quota_change *str = buf;
-
-	qc->qc_change = be64_to_cpu(str->qc_change);
-	qc->qc_flags = be32_to_cpu(str->qc_flags);
-	qc->qc_id = be32_to_cpu(str->qc_id);
-}
-
-int gfs2_quota_init(struct gfs2_sbd *sdp)
-{
-	struct gfs2_inode *ip = GFS2_I(sdp->sd_qc_inode);
-	u64 size = i_size_read(sdp->sd_qc_inode);
-	unsigned int blocks = size >> sdp->sd_sb.sb_bsize_shift;
-	unsigned int x, slot = 0;
-	unsigned int found = 0;
-	u64 dblock;
-	u32 extlen = 0;
-	int error;
-
-	if (gfs2_check_internal_file_size(sdp->sd_qc_inode, 1, 64 << 20))
-		return -EIO;
-
-	sdp->sd_quota_slots = blocks * sdp->sd_qc_per_block;
-	sdp->sd_quota_chunks = DIV_ROUND_UP(sdp->sd_quota_slots, 8 * PAGE_SIZE);
-
-	error = -ENOMEM;
-
-	sdp->sd_quota_bitmap = kcalloc(sdp->sd_quota_chunks,
-				       sizeof(unsigned char *), GFP_NOFS);
-	if (!sdp->sd_quota_bitmap)
-		return error;
-
-	for (x = 0; x < sdp->sd_quota_chunks; x++) {
-		sdp->sd_quota_bitmap[x] = kzalloc(PAGE_SIZE, GFP_NOFS);
-		if (!sdp->sd_quota_bitmap[x])
-			goto fail;
-	}
-
-	for (x = 0; x < blocks; x++) {
-		struct buffer_head *bh;
-		unsigned int y;
-
-		if (!extlen) {
-			int new = 0;
-			error = gfs2_extent_map(&ip->i_inode, x, &new, &dblock, &extlen);
-			if (error)
-				goto fail;
-		}
-		error = -EIO;
-		bh = gfs2_meta_ra(ip->i_gl, dblock, extlen);
-		if (!bh)
-			goto fail;
-		if (gfs2_metatype_check(sdp, bh, GFS2_METATYPE_QC)) {
-			brelse(bh);
-			goto fail;
-		}
-
-		for (y = 0; y < sdp->sd_qc_per_block && slot < sdp->sd_quota_slots;
-		     y++, slot++) {
-			struct gfs2_quota_change_host qc;
-			struct gfs2_quota_data *qd;
-
-			gfs2_quota_change_in(&qc, bh->b_data +
-					  sizeof(struct gfs2_meta_header) +
-					  y * sizeof(struct gfs2_quota_change));
-			if (!qc.qc_change)
-				continue;
-
-			error = qd_alloc(sdp, (qc.qc_flags & GFS2_QCF_USER),
-					 qc.qc_id, &qd);
-			if (error) {
-				brelse(bh);
-				goto fail;
-			}
-
-			set_bit(QDF_CHANGE, &qd->qd_flags);
-			qd->qd_change = qc.qc_change;
-			qd->qd_slot = slot;
-			qd->qd_slot_count = 1;
-
-			spin_lock(&qd_lru_lock);
-			gfs2_icbit_munge(sdp, sdp->sd_quota_bitmap, slot, 1);
-			list_add(&qd->qd_list, &sdp->sd_quota_list);
-			atomic_inc(&sdp->sd_quota_count);
-			spin_unlock(&qd_lru_lock);
-
-			found++;
-		}
-
-		brelse(bh);
-		dblock++;
-		extlen--;
-	}
-
-	if (found)
-		fs_info(sdp, "found %u quota changes\n", found);
-
-	return 0;
-
-fail:
-	gfs2_quota_cleanup(sdp);
-	return error;
-}
-
-void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
-{
-	struct list_head *head = &sdp->sd_quota_list;
-	struct gfs2_quota_data *qd;
-	unsigned int x;
-
-	spin_lock(&qd_lru_lock);
-	while (!list_empty(head)) {
-		qd = list_entry(head->prev, struct gfs2_quota_data, qd_list);
-
-		if (atomic_read(&qd->qd_count) > 1 ||
-		    (atomic_read(&qd->qd_count) &&
-		     !test_bit(QDF_CHANGE, &qd->qd_flags))) {
-			list_move(&qd->qd_list, head);
-			spin_unlock(&qd_lru_lock);
-			schedule();
-			spin_lock(&qd_lru_lock);
-			continue;
-		}
-
-		list_del(&qd->qd_list);
-		/* Also remove if this qd exists in the reclaim list */
-		if (!list_empty(&qd->qd_reclaim)) {
-			list_del_init(&qd->qd_reclaim);
-			atomic_dec(&qd_lru_count);
-		}
-		atomic_dec(&sdp->sd_quota_count);
-		spin_unlock(&qd_lru_lock);
-
-		if (!atomic_read(&qd->qd_count)) {
-			gfs2_assert_warn(sdp, !qd->qd_change);
-			gfs2_assert_warn(sdp, !qd->qd_slot_count);
-		} else
-			gfs2_assert_warn(sdp, qd->qd_slot_count == 1);
-		gfs2_assert_warn(sdp, !qd->qd_bh_count);
-
-		gfs2_glock_put(qd->qd_gl);
-		kmem_cache_free(gfs2_quotad_cachep, qd);
-
-		spin_lock(&qd_lru_lock);
-	}
-	spin_unlock(&qd_lru_lock);
-
-	gfs2_assert_warn(sdp, !atomic_read(&sdp->sd_quota_count));
-
-	if (sdp->sd_quota_bitmap) {
-		for (x = 0; x < sdp->sd_quota_chunks; x++)
-			kfree(sdp->sd_quota_bitmap[x]);
-		kfree(sdp->sd_quota_bitmap);
-	}
-}
-
-static void quotad_error(struct gfs2_sbd *sdp, const char *msg, int error)
-{
-	if (error == 0 || error == -EROFS)
-		return;
-	if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
-		fs_err(sdp, "gfs2_quotad: %s error %d\n", msg, error);
-}
-
-static void quotad_check_timeo(struct gfs2_sbd *sdp, const char *msg,
-			       int (*fxn)(struct super_block *sb, int type),
-			       unsigned long t, unsigned long *timeo,
-			       unsigned int *new_timeo)
-{
-	if (t >= *timeo) {
-		int error = fxn(sdp->sd_vfs, 0);
-		quotad_error(sdp, msg, error);
-		*timeo = gfs2_tune_get_i(&sdp->sd_tune, new_timeo) * HZ;
-	} else {
-		*timeo -= t;
-	}
-}
-
-static void quotad_check_trunc_list(struct gfs2_sbd *sdp)
-{
-	struct gfs2_inode *ip;
-
-	while(1) {
-		ip = NULL;
-		spin_lock(&sdp->sd_trunc_lock);
-		if (!list_empty(&sdp->sd_trunc_list)) {
-			ip = list_entry(sdp->sd_trunc_list.next,
-					struct gfs2_inode, i_trunc_list);
-			list_del_init(&ip->i_trunc_list);
-		}
-		spin_unlock(&sdp->sd_trunc_lock);
-		if (ip == NULL)
-			return;
-		gfs2_glock_finish_truncate(ip);
-	}
-}
-
-void gfs2_wake_up_statfs(struct gfs2_sbd *sdp) {
-	if (!sdp->sd_statfs_force_sync) {
-		sdp->sd_statfs_force_sync = 1;
-		wake_up(&sdp->sd_quota_wait);
-	}
-}
-
-
-/**
- * gfs2_quotad - Write cached quota changes into the quota file
- * @sdp: Pointer to GFS2 superblock
- *
- */
-
-int gfs2_quotad(void *data)
-{
-	struct gfs2_sbd *sdp = data;
-	struct gfs2_tune *tune = &sdp->sd_tune;
-	unsigned long statfs_timeo = 0;
-	unsigned long quotad_timeo = 0;
-	unsigned long t = 0;
-	DEFINE_WAIT(wait);
-	int empty;
-
-	while (!kthread_should_stop()) {
-
-		/* Update the master statfs file */
-		if (sdp->sd_statfs_force_sync) {
-			int error = gfs2_statfs_sync(sdp->sd_vfs, 0);
-			quotad_error(sdp, "statfs", error);
-			statfs_timeo = gfs2_tune_get(sdp, gt_statfs_quantum) * HZ;
-		}
-		else
-			quotad_check_timeo(sdp, "statfs", gfs2_statfs_sync, t,
-				   	   &statfs_timeo,
-					   &tune->gt_statfs_quantum);
-
-		/* Update quota file */
-		quotad_check_timeo(sdp, "sync", gfs2_quota_sync_timeo, t,
-				   &quotad_timeo, &tune->gt_quota_quantum);
-
-		/* Check for & recover partially truncated inodes */
-		quotad_check_trunc_list(sdp);
-
-		try_to_freeze();
-
-		t = min(quotad_timeo, statfs_timeo);
-
-		prepare_to_wait(&sdp->sd_quota_wait, &wait, TASK_INTERRUPTIBLE);
-		spin_lock(&sdp->sd_trunc_lock);
-		empty = list_empty(&sdp->sd_trunc_list);
-		spin_unlock(&sdp->sd_trunc_lock);
-		if (empty && !sdp->sd_statfs_force_sync)
-			t -= schedule_timeout(t);
-		else
-			t = 0;
-		finish_wait(&sdp->sd_quota_wait, &wait);
-	}
-
-	return 0;
-}
-
-static int gfs2_quota_get_xstate(struct super_block *sb,
-				 struct fs_quota_stat *fqs)
-{
-	struct gfs2_sbd *sdp = sb->s_fs_info;
-
-	memset(fqs, 0, sizeof(struct fs_quota_stat));
-	fqs->qs_version = FS_QSTAT_VERSION;
-
-	switch (sdp->sd_args.ar_quota) {
-	case GFS2_QUOTA_ON:
-		fqs->qs_flags |= (FS_QUOTA_UDQ_ENFD | FS_QUOTA_GDQ_ENFD);
-		/*FALLTHRU*/
-	case GFS2_QUOTA_ACCOUNT:
-		fqs->qs_flags |= (FS_QUOTA_UDQ_ACCT | FS_QUOTA_GDQ_ACCT);
-		break;
-	case GFS2_QUOTA_OFF:
-		break;
-	}
-
-	if (sdp->sd_quota_inode) {
-		fqs->qs_uquota.qfs_ino = GFS2_I(sdp->sd_quota_inode)->i_no_addr;
-		fqs->qs_uquota.qfs_nblks = sdp->sd_quota_inode->i_blocks;
-	}
-	fqs->qs_uquota.qfs_nextents = 1; /* unsupported */
-	fqs->qs_gquota = fqs->qs_uquota; /* its the same inode in both cases */
-	fqs->qs_incoredqs = atomic_read(&qd_lru_count);
-	return 0;
-}
-
-static int gfs2_get_dqblk(struct super_block *sb, int type, qid_t id,
-			  struct fs_disk_quota *fdq)
-{
-	struct gfs2_sbd *sdp = sb->s_fs_info;
-	struct gfs2_quota_lvb *qlvb;
-	struct gfs2_quota_data *qd;
-	struct gfs2_holder q_gh;
-	int error;
-
-	memset(fdq, 0, sizeof(struct fs_disk_quota));
-
-	if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
-		return -ESRCH; /* Crazy XFS error code */
-
-	if (type == USRQUOTA)
-		type = QUOTA_USER;
-	else if (type == GRPQUOTA)
-		type = QUOTA_GROUP;
-	else
-		return -EINVAL;
-
-	error = qd_get(sdp, type, id, &qd);
-	if (error)
-		return error;
-	error = do_glock(qd, FORCE, &q_gh);
-	if (error)
-		goto out;
-
-	qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb;
-	fdq->d_version = FS_DQUOT_VERSION;
-	fdq->d_flags = (type == QUOTA_USER) ? FS_USER_QUOTA : FS_GROUP_QUOTA;
-	fdq->d_id = id;
-	fdq->d_blk_hardlimit = be64_to_cpu(qlvb->qb_limit) << sdp->sd_fsb2bb_shift;
-	fdq->d_blk_softlimit = be64_to_cpu(qlvb->qb_warn) << sdp->sd_fsb2bb_shift;
-	fdq->d_bcount = be64_to_cpu(qlvb->qb_value) << sdp->sd_fsb2bb_shift;
-
-	gfs2_glock_dq_uninit(&q_gh);
-out:
-	qd_put(qd);
-	return error;
-}
-
-/* GFS2 only supports a subset of the XFS fields */
-#define GFS2_FIELDMASK (FS_DQ_BSOFT|FS_DQ_BHARD|FS_DQ_BCOUNT)
-
-static int gfs2_set_dqblk(struct super_block *sb, int type, qid_t id,
-			  struct fs_disk_quota *fdq)
-{
-	struct gfs2_sbd *sdp = sb->s_fs_info;
-	struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
-	struct gfs2_quota_data *qd;
-	struct gfs2_holder q_gh, i_gh;
-	unsigned int data_blocks, ind_blocks;
-	unsigned int blocks = 0;
-	int alloc_required;
-	loff_t offset;
-	int error;
-
-	if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
-		return -ESRCH; /* Crazy XFS error code */
-
-	switch(type) {
-	case USRQUOTA:
-		type = QUOTA_USER;
-		if (fdq->d_flags != FS_USER_QUOTA)
-			return -EINVAL;
-		break;
-	case GRPQUOTA:
-		type = QUOTA_GROUP;
-		if (fdq->d_flags != FS_GROUP_QUOTA)
-			return -EINVAL;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (fdq->d_fieldmask & ~GFS2_FIELDMASK)
-		return -EINVAL;
-	if (fdq->d_id != id)
-		return -EINVAL;
-
-	error = qd_get(sdp, type, id, &qd);
-	if (error)
-		return error;
-
-	mutex_lock(&ip->i_inode.i_mutex);
-	error = gfs2_glock_nq_init(qd->qd_gl, LM_ST_EXCLUSIVE, 0, &q_gh);
-	if (error)
-		goto out_put;
-	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh);
-	if (error)
-		goto out_q;
-
-	/* Check for existing entry, if none then alloc new blocks */
-	error = update_qd(sdp, qd);
-	if (error)
-		goto out_i;
-
-	/* If nothing has changed, this is a no-op */
-	if ((fdq->d_fieldmask & FS_DQ_BSOFT) &&
-	    ((fdq->d_blk_softlimit >> sdp->sd_fsb2bb_shift) == be64_to_cpu(qd->qd_qb.qb_warn)))
-		fdq->d_fieldmask ^= FS_DQ_BSOFT;
-
-	if ((fdq->d_fieldmask & FS_DQ_BHARD) &&
-	    ((fdq->d_blk_hardlimit >> sdp->sd_fsb2bb_shift) == be64_to_cpu(qd->qd_qb.qb_limit)))
-		fdq->d_fieldmask ^= FS_DQ_BHARD;
-
-	if ((fdq->d_fieldmask & FS_DQ_BCOUNT) &&
-	    ((fdq->d_bcount >> sdp->sd_fsb2bb_shift) == be64_to_cpu(qd->qd_qb.qb_value)))
-		fdq->d_fieldmask ^= FS_DQ_BCOUNT;
-
-	if (fdq->d_fieldmask == 0)
-		goto out_i;
-
-	offset = qd2offset(qd);
-	alloc_required = gfs2_write_alloc_required(ip, offset, sizeof(struct gfs2_quota));
-	if (gfs2_is_stuffed(ip))
-		alloc_required = 1;
-	if (alloc_required) {
-		gfs2_write_calc_reserv(ip, sizeof(struct gfs2_quota),
-				       &data_blocks, &ind_blocks);
-		blocks = 1 + data_blocks + ind_blocks;
-		error = gfs2_inplace_reserve(ip, blocks);
-		if (error)
-			goto out_i;
-		blocks += gfs2_rg_blocks(ip);
-	}
-
-	/* Some quotas span block boundaries and can update two blocks,
-	   adding an extra block to the transaction to handle such quotas */
-	error = gfs2_trans_begin(sdp, blocks + RES_DINODE + 2, 0);
-	if (error)
-		goto out_release;
-
-	/* Apply changes */
-	error = gfs2_adjust_quota(ip, offset, 0, qd, fdq);
-
-	gfs2_trans_end(sdp);
-out_release:
-	if (alloc_required)
-		gfs2_inplace_release(ip);
-out_i:
-	gfs2_glock_dq_uninit(&i_gh);
-out_q:
-	gfs2_glock_dq_uninit(&q_gh);
-out_put:
-	mutex_unlock(&ip->i_inode.i_mutex);
-	qd_put(qd);
-	return error;
-}
-
-const struct quotactl_ops gfs2_quotactl_ops = {
-	.quota_sync     = gfs2_quota_sync,
-	.get_xstate     = gfs2_quota_get_xstate,
-	.get_dqblk	= gfs2_get_dqblk,
-	.set_dqblk	= gfs2_set_dqblk,
-};