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b=24037 Changes of 2.6.32 kernel.
[fs/lustre-release.git] / lustre / lvfs / fsfilt_ext3.c
index 9fe0f70..c89de20 100644 (file)
@@ -26,7 +26,7 @@
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  */
 /*
 #include <linux/version.h>
 #include <linux/bitops.h>
 #include <linux/quota.h>
-#include <linux/quotaio_v1.h>
-#include <linux/quotaio_v2.h>
+#ifdef HAVE_QUOTAIO_V1_H
+# include <linux/quotaio_v1.h>
+# include <linux/quotaio_v2.h>
+#elif defined(HAVE_FS_QUOTA_QUOTAIO_V1_H)
+# include <quota/quotaio_v1.h>
+# include <quota/quotaio_v2.h>
+# include <quota/quota_tree.h>
+# define V2_DQTREEOFF    QT_TREEOFF
+#else
+# include <quotaio_v1.h>
+# include <quotaio_v2.h>
+# include <quota_tree.h>
+# define V2_DQTREEOFF    QT_TREEOFF
+#endif
+
 #if defined(HAVE_EXT3_XATTR_H)
 #include <ext3/xattr.h>
 #else
@@ -74,13 +87,11 @@ extern int ext3_xattr_set_handle(handle_t *, struct inode *, int, const char *,
 #include <linux/lustre_compat25.h>
 #include <linux/lprocfs_status.h>
 
-#ifdef EXT3_MULTIBLOCK_ALLOCATOR
 #ifdef HAVE_EXT4_LDISKFS
 #include <ext4/ext4_extents.h>
 #else
 #include <linux/ext3_extents.h>
 #endif
-#endif
 
 #include "lustre_quota_fmt.h"
 
@@ -99,8 +110,14 @@ extern int ext3_xattr_set_handle(handle_t *, struct inode *, int, const char *,
 #define FSFILT_SINGLEDATA_TRANS_BLOCKS(sb) EXT3_SINGLEDATA_TRANS_BLOCKS
 #endif
 
-#define fsfilt_ext3_journal_start(inode, nblocks) ext3_journal_start(inode, nblocks)
-#define fsfilt_ext3_journal_stop(handle)          ext3_journal_stop(handle)
+#ifdef EXT_INSERT_EXTENT_WITH_5ARGS
+#define fsfilt_ext3_ext_insert_extent(handle, inode, path, newext, flag) \
+               ext3_ext_insert_extent(handle, inode, path, newext, flag)
+#else
+#define fsfilt_ext3_ext_insert_extent(handle, inode, path, newext, flag) \
+               ext3_ext_insert_extent(handle, inode, path, newext)
+#endif
+
 
 static cfs_mem_cache_t *fcb_cache;
 
@@ -129,6 +146,18 @@ struct fsfilt_cb_data {
 #define ext3_inode_bitmap(sb,desc) le32_to_cpu((desc)->bg_inode_bitmap)
 #endif
 
+#ifndef ext3_find_next_bit
+#define ext3_find_next_bit           ext2_find_next_bit
+#endif
+
+#ifndef ext2_find_next_bit
+#ifdef __LITTLE_ENDIAN
+#define ext2_find_next_bit(addr, size, off) find_next_bit((unsigned long *)(addr), (size), (off))
+#else
+error "Need implementation of find_next_bit on big-endian systems"
+#endif /* __LITTLE_ENDIAN */
+#endif /* !ext2_find_next_le_bit */
+
 static char *fsfilt_ext3_get_label(struct super_block *sb)
 {
         return EXT3_SB(sb)->s_es->s_volume_name;
@@ -298,19 +327,6 @@ static void *fsfilt_ext3_start(struct inode *inode, int op, void *desc_private,
                 nblocks = (LLOG_CHUNK_SIZE >> inode->i_blkbits) +
                         FSFILT_DELETE_TRANS_BLOCKS(inode->i_sb) * logs;
                 break;
-        case FSFILT_OP_JOIN:
-                /* delete 2 file(file + array id) + create 1 file (array id)
-                 * create/update logs for each stripe */
-                nblocks += 2 * FSFILT_DELETE_TRANS_BLOCKS(inode->i_sb);
-
-                /*create array log for head file*/
-                nblocks += 3;
-                nblocks += (EXT3_INDEX_EXTRA_TRANS_BLOCKS +
-                            FSFILT_SINGLEDATA_TRANS_BLOCKS(inode->i_sb));
-                /*update head file array */
-                nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS +
-                         FSFILT_DATA_TRANS_BLOCKS(inode->i_sb);
-                break;
         default: CERROR("unknown transaction start op %d\n", op);
                 LBUG();
         }
@@ -325,7 +341,7 @@ static void *fsfilt_ext3_start(struct inode *inode, int op, void *desc_private,
 
  journal_start:
         LASSERTF(nblocks > 0, "can't start %d credit transaction\n", nblocks);
-        handle = fsfilt_ext3_journal_start(inode, nblocks);
+        handle = ext3_journal_start(inode, nblocks);
 
         if (!IS_ERR(handle))
                 LASSERT(current->journal_info == handle);
@@ -411,7 +427,7 @@ static int fsfilt_ext3_credits_needed(int objcount, struct fsfilt_objinfo *fso,
         /* We assume that there will be 1 bit set in s_dquot.flags for each
          * quota file that is active.  This is at least true for now.
          */
-        needed += hweight32(sb_any_quota_enabled(sb)) *
+        needed += hweight32(ll_sb_any_quota_active(sb)) *
                 FSFILT_SINGLEDATA_TRANS_BLOCKS(sb);
 #endif
 
@@ -462,7 +478,7 @@ static void *fsfilt_ext3_brw_start(int objcount, struct fsfilt_objinfo *fso,
         }
 
         LASSERTF(needed > 0, "can't start %d credit transaction\n", needed);
-        handle = fsfilt_ext3_journal_start(fso->fso_dentry->d_inode, needed);
+        handle = ext3_journal_start(fso->fso_dentry->d_inode, needed);
         if (IS_ERR(handle)) {
                 CERROR("can't get handle for %d credits: rc = %ld\n", needed,
                        PTR_ERR(handle));
@@ -502,7 +518,7 @@ static int fsfilt_ext3_commit(struct inode *inode, void *h, int force_sync)
         if (force_sync)
                 handle->h_sync = 1; /* recovery likes this */
 
-        rc = fsfilt_ext3_journal_stop(handle);
+        rc = ext3_journal_stop(handle);
 
         return rc;
 }
@@ -523,7 +539,7 @@ static int fsfilt_ext3_commit_async(struct inode *inode, void *h,
         tid = transaction->t_tid;
         /* we don't want to be blocked */
         handle->h_sync = 0;
-        rc = fsfilt_ext3_journal_stop(handle);
+        rc = ext3_journal_stop(handle);
         if (rc) {
                 CERROR("error while stopping transaction: %d\n", rc);
                 return rc;
@@ -580,7 +596,7 @@ static int fsfilt_ext3_setattr(struct dentry *dentry, void *handle,
                 if (iattr->ia_valid & ATTR_MODE) {
                         inode->i_mode = iattr->ia_mode;
 
-                        if (!in_group_p(inode->i_gid) &&
+                        if (!cfs_curproc_is_in_groups(inode->i_gid) &&
                             !cfs_capable(CFS_CAP_FSETID))
                                 inode->i_mode &= ~S_ISGID;
                 }
@@ -618,9 +634,21 @@ static int fsfilt_ext3_iocontrol(struct inode *inode, struct file *file,
         ENTRY;
 
         /* FIXME: Can't do this because of nested transaction deadlock */
-        if (cmd == EXT3_IOC_SETFLAGS && (*(int *)arg) & EXT3_JOURNAL_DATA_FL) {
-                CERROR("can't set data journal flag on file\n");
-                RETURN(-EPERM);
+        if (cmd == EXT3_IOC_SETFLAGS) {
+                /* We can't enable data journaling on OST objects, because
+                * this forces the transaction to be closed in order to
+                * flush the journal, but the caller will already have a
+                * compound transaction open to update the last_rcvd file,
+                * and this thread would deadlock trying to set the flag. */
+                if ((*(int *)arg) & EXT3_JOURNAL_DATA_FL) {
+                        CERROR("can't set data journal flag on file\n");
+                        RETURN(-EPERM);
+                }
+                /* Because the MDS does not see the EXTENTS_FL set on the
+                 * OST objects, mask this flag into all set flags.  It is
+                 * not legal to clear this flag in any case, so we are not
+                 * changing the functionality by doing this.  b=22911 */
+                *(int *)arg |= EXT3_I(inode)->i_flags & EXT3_EXTENTS_FL;
         }
 
 #ifdef HAVE_EXT4_LDISKFS
@@ -801,26 +829,26 @@ static int fsfilt_ext3_sync(struct super_block *sb)
         return ext3_force_commit(sb);
 }
 
-#if defined(EXT3_MULTIBLOCK_ALLOCATOR) && (!defined(EXT3_EXT_CACHE_NO) || defined(EXT_CACHE_MARK))
-#warning "kernel code has old extents/mballoc patch, disabling"
-#undef EXT3_MULTIBLOCK_ALLOCATOR
-#endif
 #ifndef EXT3_EXTENTS_FL
 #define EXT3_EXTENTS_FL                 0x00080000 /* Inode uses extents */
 #endif
 
-#ifdef EXT3_MULTIBLOCK_ALLOCATOR
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17))
-#define fsfilt_up_truncate_sem(inode)  up(&EXT3_I(inode)->truncate_sem);
-#define fsfilt_down_truncate_sem(inode)  down(&EXT3_I(inode)->truncate_sem);
-#else
-#ifdef HAVE_EXT4_LDISKFS
-#define fsfilt_up_truncate_sem(inode) up_write((&EXT4_I(inode)->i_data_sem));
-#define fsfilt_down_truncate_sem(inode) down_write((&EXT4_I(inode)->i_data_sem));
+# define fsfilt_up_truncate_sem(inode)  up(&LDISKFS_I(inode)->truncate_sem);
+# define fsfilt_down_truncate_sem(inode)  down(&LDISKFS_I(inode)->truncate_sem);
 #else
-#define fsfilt_up_truncate_sem(inode)  mutex_unlock(&EXT3_I(inode)->truncate_mutex);
-#define fsfilt_down_truncate_sem(inode)  mutex_lock(&EXT3_I(inode)->truncate_mutex);
-#endif
+# ifdef HAVE_EXT4_LDISKFS
+#  ifdef WALK_SPACE_HAS_DATA_SEM /* We only use it in fsfilt_map_nblocks() for now */
+#   define fsfilt_up_truncate_sem(inode) do{ }while(0)
+#   define fsfilt_down_truncate_sem(inode) do{ }while(0)
+#  else
+#   define fsfilt_up_truncate_sem(inode) up_write((&EXT4_I(inode)->i_data_sem))
+#   define fsfilt_down_truncate_sem(inode) down_write((&EXT4_I(inode)->i_data_sem))
+#  endif
+# else
+#  define fsfilt_up_truncate_sem(inode)  mutex_unlock(&EXT3_I(inode)->truncate_mutex)
+#  define fsfilt_down_truncate_sem(inode)  mutex_lock(&EXT3_I(inode)->truncate_mutex)
+# endif
 #endif
 
 #ifndef EXT_ASSERT
@@ -846,6 +874,14 @@ static int fsfilt_ext3_sync(struct super_block *sb)
                         ext3_ext_walk_space(tree, block, num, cb);
 #endif
 
+#ifdef EXT_INSERT_EXTENT_WITH_5ARGS
+#define fsfilt_ext3_ext_insert_extent(handle, inode, path, newext, flag) \
+               ext3_ext_insert_extent(handle, inode, path, newext, flag)
+#else
+#define fsfilt_ext3_ext_insert_extent(handle, inode, path, newext, flag) \
+               ext3_ext_insert_extent(handle, inode, path, newext)
+#endif
+
 #include <linux/lustre_version.h>
 
 struct bpointers {
@@ -998,7 +1034,7 @@ static int ext3_ext_new_extent_cb(struct ext3_ext_base *base,
         count = ext3_ext_calc_credits_for_insert(base, path);
         fsfilt_up_truncate_sem(inode);
 
-        handle = fsfilt_ext3_journal_start(inode, count+EXT3_ALLOC_NEEDED+1);
+        handle = ext3_journal_start(inode, count+EXT3_ALLOC_NEEDED+1);
         if (IS_ERR(handle)) {
                 fsfilt_down_truncate_sem(inode);
                 return PTR_ERR(handle);
@@ -1007,7 +1043,7 @@ static int ext3_ext_new_extent_cb(struct ext3_ext_base *base,
         fsfilt_down_truncate_sem(inode);
         if (tgen != EXT_GENERATION(base)) {
                 /* the tree has changed. so path can be invalid at moment */
-                fsfilt_ext3_journal_stop(handle);
+                ext3_journal_stop(handle);
                 return EXT_REPEAT;
         }
 
@@ -1021,7 +1057,7 @@ static int ext3_ext_new_extent_cb(struct ext3_ext_base *base,
         nex.ee_block = cpu_to_le32(cex->ec_block);
         ext3_ext_store_pblock(&nex, pblock);
         nex.ee_len = cpu_to_le16(count);
-        err = ext3_ext_insert_extent(handle, base, path, &nex);
+        err = fsfilt_ext3_ext_insert_extent(handle, base, path, &nex, 0);
         if (err) {
                 /* free data blocks we just allocated */
                 /* not a good idea to call discard here directly,
@@ -1045,7 +1081,7 @@ static int ext3_ext_new_extent_cb(struct ext3_ext_base *base,
         BUG_ON(le32_to_cpu(nex.ee_block) != cex->ec_block);
 
 out:
-        fsfilt_ext3_journal_stop(handle);
+        ext3_journal_stop(handle);
 map:
         if (err >= 0) {
                 /* map blocks */
@@ -1168,7 +1204,6 @@ int fsfilt_ext3_map_ext_inode_pages(struct inode *inode, struct page **page,
 cleanup:
         return rc;
 }
-#endif /* EXT3_MULTIBLOCK_ALLOCATOR */
 
 extern int ext3_map_inode_page(struct inode *inode, struct page *page,
                                unsigned long *blocks, int *created, int create);
@@ -1197,22 +1232,21 @@ int fsfilt_ext3_map_bm_inode_pages(struct inode *inode, struct page **page,
 int fsfilt_ext3_map_inode_pages(struct inode *inode, struct page **page,
                                 int pages, unsigned long *blocks,
                                 int *created, int create,
-                                struct semaphore *optional_sem)
+                                cfs_semaphore_t *optional_sem)
 {
         int rc;
-#ifdef EXT3_MULTIBLOCK_ALLOCATOR
+
         if (EXT3_I(inode)->i_flags & EXT3_EXTENTS_FL) {
                 rc = fsfilt_ext3_map_ext_inode_pages(inode, page, pages,
                                                      blocks, created, create);
                 return rc;
         }
-#endif
         if (optional_sem != NULL)
-                down(optional_sem);
+                cfs_down(optional_sem);
         rc = fsfilt_ext3_map_bm_inode_pages(inode, page, pages, blocks,
                                             created, create);
         if (optional_sem != NULL)
-                up(optional_sem);
+                cfs_up(optional_sem);
 
         return rc;
 }
@@ -1224,19 +1258,19 @@ int fsfilt_ext3_read(struct inode *inode, void *buf, int size, loff_t *offs)
         int err, blocksize, csize, boffs, osize = size;
 
         /* prevent reading after eof */
-        lock_kernel();
+        cfs_lock_kernel();
         if (i_size_read(inode) < *offs + size) {
                 size = i_size_read(inode) - *offs;
-                unlock_kernel();
+                cfs_unlock_kernel();
                 if (size < 0) {
-                        CERROR("size %llu is too short for read %u@%llu\n",
-                               i_size_read(inode), size, *offs);
-                        return -EIO;
+                        CDEBUG(D_EXT2, "size %llu is too short for read @%llu\n",
+                               i_size_read(inode), *offs);
+                        return -EBADR;
                 } else if (size == 0) {
                         return 0;
                 }
         } else {
-                unlock_kernel();
+                cfs_unlock_kernel();
         }
 
         blocksize = 1 << inode->i_blkbits;
@@ -1319,14 +1353,14 @@ int fsfilt_ext3_write_handle(struct inode *inode, void *buf, int bufsize,
 
         /* correct in-core and on-disk sizes */
         if (new_size > i_size_read(inode)) {
-                lock_kernel();
+                cfs_lock_kernel();
                 if (new_size > i_size_read(inode))
                         i_size_write(inode, new_size);
                 if (i_size_read(inode) > EXT3_I(inode)->i_disksize)
                         EXT3_I(inode)->i_disksize = i_size_read(inode);
                 if (i_size_read(inode) > old_size)
                         mark_inode_dirty(inode);
-                unlock_kernel();
+                cfs_unlock_kernel();
         }
 
         if (err == 0)
@@ -1347,7 +1381,7 @@ static int fsfilt_ext3_write_record(struct file *file, void *buf, int bufsize,
         block_count = (*offs & (blocksize - 1)) + bufsize;
         block_count = (block_count + blocksize - 1) >> inode->i_blkbits;
 
-        handle = fsfilt_ext3_journal_start(inode,
+        handle = ext3_journal_start(inode,
                                block_count * FSFILT_DATA_TRANS_BLOCKS(inode->i_sb) + 2);
         if (IS_ERR(handle)) {
                 CERROR("can't start transaction for %d blocks (%d bytes)\n",
@@ -1360,7 +1394,7 @@ static int fsfilt_ext3_write_record(struct file *file, void *buf, int bufsize,
         if (!err && force_sync)
                 handle->h_sync = 1; /* recovery likes this */
 
-        fsfilt_ext3_journal_stop(handle);
+        ext3_journal_stop(handle);
 
         return err;
 }
@@ -1459,7 +1493,7 @@ static int fsfilt_ext3_quotactl(struct super_block *sb,
                                 struct obd_quotactl *oqc)
 {
         int i, rc = 0, error = 0;
-        struct quotactl_ops *qcop;
+        const struct quotactl_ops *qcop;
         struct if_dqinfo *info;
         struct if_dqblk *dqblk;
         ENTRY;
@@ -1490,15 +1524,10 @@ static int fsfilt_ext3_quotactl(struct super_block *sb,
 
                                 LASSERT(oqc->qc_id == LUSTRE_QUOTA_V2);
 
-                                if (!qcop->quota_on)
-                                        GOTO(out, rc = -ENOSYS);
-
-                                rc = qcop->quota_on(sb, i, QFMT_VFS_V0,
-                                                    name[i]);
+                                rc = ll_quota_on(sb, i, QFMT_VFS_V0,
+                                                 name[i], 0);
                         } else if (oqc->qc_cmd == Q_QUOTAOFF) {
-                                if (!qcop->quota_off)
-                                        GOTO(out, rc = -ENOSYS);
-                                rc = qcop->quota_off(sb, i);
+                                rc = ll_quota_off(sb, i, 0);
                         }
 
                         if (rc == -EBUSY)
@@ -1576,8 +1605,8 @@ out:
 }
 
 struct chk_dqblk{
-        struct hlist_node       dqb_hash;        /** quotacheck hash */
-        struct list_head        dqb_list;        /** in list also */
+        cfs_hlist_node_t        dqb_hash;        /** quotacheck hash */
+        cfs_list_t              dqb_list;        /** in list also */
         qid_t                   dqb_id;          /** uid/gid */
         short                   dqb_type;        /** USRQUOTA/GRPQUOTA */
         qsize_t                 dqb_bhardlimit;  /** block hard limit */
@@ -1586,8 +1615,8 @@ struct chk_dqblk{
         qsize_t                 dqb_ihardlimit;  /** inode hard limit */
         qsize_t                 dqb_isoftlimit;  /** inode soft limit */
         qsize_t                 dqb_curinodes;   /** current inodes */
-        __u64                   dqb_btime;       /** block grace time */
-        __u64                   dqb_itime;       /** inode grace time */
+        obd_time                dqb_btime;       /** block grace time */
+        obd_time                dqb_itime;       /** inode grace time */
         __u32                   dqb_valid;       /** flag for above fields */
 };
 
@@ -1600,13 +1629,13 @@ static inline unsigned int chkquot_hash(qid_t id, int type)
 }
 
 static inline struct chk_dqblk *
-find_chkquot(struct hlist_head *head, qid_t id, int type)
+find_chkquot(cfs_hlist_head_t *head, qid_t id, int type)
 {
-        struct hlist_node *node;
+        cfs_hlist_node_t *node;
         struct chk_dqblk *cdqb;
 
-        hlist_for_each(node, head) {
-                cdqb = hlist_entry(node, struct chk_dqblk, dqb_hash);
+        cfs_hlist_for_each(node, head) {
+                cdqb = cfs_hlist_entry(node, struct chk_dqblk, dqb_hash);
                 if (cdqb->dqb_id == id && cdqb->dqb_type == type)
                         return cdqb;
         }
@@ -1620,8 +1649,8 @@ static struct chk_dqblk *alloc_chkquot(qid_t id, int type)
 
         OBD_ALLOC_PTR(cdqb);
         if (cdqb) {
-                INIT_HLIST_NODE(&cdqb->dqb_hash);
-                INIT_LIST_HEAD(&cdqb->dqb_list);
+                CFS_INIT_HLIST_NODE(&cdqb->dqb_hash);
+                CFS_INIT_LIST_HEAD(&cdqb->dqb_list);
                 cdqb->dqb_id = id;
                 cdqb->dqb_type = type;
         }
@@ -1630,10 +1659,10 @@ static struct chk_dqblk *alloc_chkquot(qid_t id, int type)
 }
 
 static struct chk_dqblk *
-cqget(struct super_block *sb, struct hlist_head *hash, struct list_head *list,
-      qid_t id, int type, int first_check)
+cqget(struct super_block *sb, cfs_hlist_head_t *hash,
+      cfs_list_t *list, qid_t id, int type, int first_check)
 {
-        struct hlist_head *head = hash + chkquot_hash(id, type);
+        cfs_hlist_head_t *head = hash + chkquot_hash(id, type);
         struct if_dqblk dqb;
         struct chk_dqblk *cdqb;
         int rc;
@@ -1658,8 +1687,8 @@ cqget(struct super_block *sb, struct hlist_head *hash, struct list_head *list,
                 }
         }
 
-        hlist_add_head(&cdqb->dqb_hash, head);
-        list_add_tail(&cdqb->dqb_list, list);
+        cfs_hlist_add_head(&cdqb->dqb_hash, head);
+        cfs_list_add_tail(&cdqb->dqb_list, list);
 
         return cdqb;
 }
@@ -1703,8 +1732,9 @@ static inline int read_old_dqinfo(struct super_block *sb, int type,
         RETURN(rc);
 }
 
+#ifndef HAVE_EXT4_LDISKFS
 static inline struct ext3_group_desc *
-get_group_desc(struct super_block *sb, int group)
+get_group_desc(struct super_block *sb, int group, struct buffer_head **bh)
 {
         unsigned long desc_block, desc;
         struct ext3_group_desc *gdp;
@@ -1717,44 +1747,30 @@ get_group_desc(struct super_block *sb, int group)
         return gdp + desc;
 }
 
-
-#ifndef HAVE_EXT4_LDISKFS
 static inline struct buffer_head *
 ext3_read_inode_bitmap(struct super_block *sb, unsigned long group)
 {
         struct ext3_group_desc *desc;
         struct buffer_head *bh;
 
-        desc = get_group_desc(sb, group);
+        desc = get_group_desc(sb, group, NULL);
         bh = sb_bread(sb, ext3_inode_bitmap(sb, desc));
         return bh;
 }
-#endif
 
-static inline struct inode *ext3_iget_inuse(struct super_block *sb,
-                                     struct buffer_head *bitmap_bh,
-                                     int index, unsigned long ino)
-{
-        struct inode *inode = NULL;
-
-
-        if (ext3_test_bit(index, bitmap_bh->b_data))
-#ifdef HAVE_EXT4_LDISKFS
-                inode = ext4_iget(sb, ino);
-                if (IS_ERR(inode))
-                /* Newer kernels return an error instead of a NULL pointer */
-                        inode = NULL;
+static __u32 ext3_itable_unused_count(struct super_block *sb,
+                               struct ext3_group_desc *bg) {
+       return le16_to_cpu(bg->bg_itable_unused);
+}
 #else
-                inode = iget(sb, ino);
+#define get_group_desc ext3_get_group_desc
 #endif
-        return inode;
-}
 
 struct qchk_ctxt {
-        struct hlist_head       qckt_hash[NR_DQHASH];        /* quotacheck hash */
-        struct list_head        qckt_list;                   /* quotacheck list */
+        cfs_hlist_head_t        qckt_hash[NR_DQHASH];      /* quotacheck hash */
+        cfs_list_t              qckt_list;                 /* quotacheck list */
         int                     qckt_first_check[MAXQUOTAS]; /* 1 if no old quotafile */
-        struct if_dqinfo        qckt_dqinfo[MAXQUOTAS];      /* old dqinfo */
+        struct if_dqinfo        qckt_dqinfo[MAXQUOTAS];    /* old dqinfo */
 };
 
 static int add_inode_quota(struct inode *inode, struct qchk_ctxt *qctxt,
@@ -1833,7 +1849,7 @@ static int v3_write_dqinfo(struct file *f, int type, struct if_dqinfo *info)
 static int v3_write_dqheader(struct file *f, int type)
 {
         static const __u32 quota_magics[] = V2_INITQMAGICS;
-        static const __u32 quota_versions[] = V2_INITQVERSIONS_R1;
+        static const __u32 quota_versions[] = LUSTRE_INITQVERSIONS_V2;
         struct v2_disk_dqheader dqhead;
         loff_t offset = 0;
 
@@ -1877,7 +1893,7 @@ static int create_new_quota_files(struct qchk_ctxt *qctxt,
                         GOTO(out, rc = -EINVAL);
                 }
 
-                DQUOT_DROP(file->f_dentry->d_inode);
+                ll_vfs_dq_drop(file->f_dentry->d_inode);
 
                 rc = v3_write_dqheader(file, i);
                 if (rc) {
@@ -1940,28 +1956,32 @@ static int prune_chkquots(struct super_block *sb,
         struct chk_dqblk *cdqb, *tmp;
         int rc;
 
-        list_for_each_entry_safe(cdqb, tmp, &qctxt->qckt_list, dqb_list) {
+        cfs_list_for_each_entry_safe(cdqb, tmp, &qctxt->qckt_list, dqb_list) {
                 if (!error) {
                         rc = commit_chkquot(sb, qctxt, cdqb);
                         if (rc)
                                 error = rc;
                 }
-                hlist_del_init(&cdqb->dqb_hash);
-                list_del(&cdqb->dqb_list);
+                cfs_hlist_del_init(&cdqb->dqb_hash);
+                cfs_list_del(&cdqb->dqb_list);
                 OBD_FREE_PTR(cdqb);
         }
 
         return error;
 }
 
+#ifndef EXT3_FEATURE_RO_COMPAT_GDT_CSUM
+#define EXT3_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
+#endif
+
 static int fsfilt_ext3_quotacheck(struct super_block *sb,
                                   struct obd_quotactl *oqc)
 {
         struct ext3_sb_info *sbi = EXT3_SB(sb);
-        int i, group;
+        int i, group, uninit_feat = 0;
         struct qchk_ctxt *qctxt;
         struct buffer_head *bitmap_bh = NULL;
-        unsigned long ino;
+        unsigned long ino, inode_inuse;
         struct inode *inode;
         int rc = 0;
         ENTRY;
@@ -1974,8 +1994,8 @@ static int fsfilt_ext3_quotacheck(struct super_block *sb,
         }
 
         for (i = 0; i < NR_DQHASH; i++)
-                INIT_HLIST_HEAD(&qctxt->qckt_hash[i]);
-        INIT_LIST_HEAD(&qctxt->qckt_list);
+                CFS_INIT_HLIST_HEAD(&qctxt->qckt_hash[i]);
+        CFS_INIT_LIST_HEAD(&qctxt->qckt_list);
 
         for (i = 0; i < MAXQUOTAS; i++) {
                 if (!Q_TYPESET(oqc, i))
@@ -1992,34 +2012,76 @@ static int fsfilt_ext3_quotacheck(struct super_block *sb,
                         GOTO(out, rc);
                 }
         }
+        if (EXT3_HAS_RO_COMPAT_FEATURE(sb, EXT3_FEATURE_RO_COMPAT_GDT_CSUM))
+                /* This filesystem supports the uninit group feature */
+                uninit_feat = 1;
+
+        /* number of inodes that have been allocated */
+        inode_inuse = sbi->s_inodes_per_group * sbi->s_groups_count -
+                      percpu_counter_sum(&sbi->s_freeinodes_counter);
 
         /* check quota and update in hash */
-        for (group = 0; group < sbi->s_groups_count; group++) {
-                struct ext3_group_desc *desc;
-                desc = get_group_desc(sb, group);
-                if (!desc)
-                        GOTO(out, -EIO);
+        for (group = 0; group < sbi->s_groups_count && inode_inuse > 0;
+             group++) {
+                unsigned long used_count = sbi->s_inodes_per_group;
+
+                if (uninit_feat) {
+                        struct ext3_group_desc *desc;
+                        desc = get_group_desc(sb, group, NULL);
+                        if (!desc)
+                                GOTO(out, -EIO);
+
+                        /* we don't really need to take the group lock here,
+                         * but it may be useful if one day we support online
+                         * quotacheck */
+#ifdef HAVE_EXT4_LDISKFS
+                        ext4_lock_group(sb, group);
+#else
+                        spin_lock(sb_bgl_lock(sbi, group));
+#endif
+                        if (desc->bg_flags & cpu_to_le16(EXT3_BG_INODE_UNINIT)) {
+                                /* no inode in use in this group, just skip it */
+#ifdef HAVE_EXT4_LDISKFS
+                                ext3_unlock_group(sb, group);
+#else
+                                spin_unlock(sb_bgl_lock(sbi, group));
+#endif
+                                continue;
+                        }
 
-                spin_lock(sb_bgl_lock(sbi, group));
-                if (desc->bg_flags & cpu_to_le16(EXT3_BG_INODE_UNINIT)) {
-                        /* no inode in use in this group, just skip it */
+                        used_count -= ext3_itable_unused_count(sb, desc);
+#ifdef HAVE_EXT4_LDISKFS
+                        ext3_unlock_group(sb, group);
+#else
                         spin_unlock(sb_bgl_lock(sbi, group));
-                        continue;
+#endif
                 }
-                spin_unlock(sb_bgl_lock(sbi, group));
 
                 ino = group * sbi->s_inodes_per_group + 1;
                 bitmap_bh = ext3_read_inode_bitmap(sb, group);
                 if (!bitmap_bh) {
-                        CERROR("ext3_read_inode_bitmap group %d failed", group);
-                        GOTO(out, rc = -EIO);
+                        CERROR("%s: ext3_read_inode_bitmap group %d failed\n",
+                               sb->s_id, group);
+                        GOTO(out, -EIO);
                 }
 
-                for (i = 0; i < sbi->s_inodes_per_group; i++, ino++) {
+                i = 0;
+                while (i < used_count &&
+                       (i = ext3_find_next_bit(bitmap_bh->b_data,
+                                               used_count, i)) < used_count) {
+                        inode_inuse--;
+                        i++;
+                        ino = i + group * sbi->s_inodes_per_group;
                         if (ino < sbi->s_first_ino)
                                 continue;
+#if defined(HAVE_EXT4_LDISKFS) || !defined(HAVE_READ_INODE_IN_SBOPS)
+                        inode = ext3_iget(sb, ino);
+#else
+                        inode = iget(sb, ino);
+#endif
+                        if (!inode || IS_ERR(inode))
+                                continue;
 
-                        inode = ext3_iget_inuse(sb, bitmap_bh, i, ino);
                         rc = add_inode_quota(inode, qctxt, oqc);
                         iput(inode);
                         if (rc) {
@@ -2027,7 +2089,6 @@ static int fsfilt_ext3_quotacheck(struct super_block *sb,
                                 GOTO(out, rc);
                         }
                 }
-
                 brelse(bitmap_bh);
         }
 
@@ -2035,7 +2096,7 @@ static int fsfilt_ext3_quotacheck(struct super_block *sb,
          * has limits but hasn't file) */
 #ifdef HAVE_QUOTA_SUPPORT
         for (i = 0; i < MAXQUOTAS; i++) {
-                struct list_head id_list;
+                cfs_list_t id_list;
                 struct dquot_id *dqid, *tmp;
 
                 if (!Q_TYPESET(oqc, i))
@@ -2046,7 +2107,7 @@ static int fsfilt_ext3_quotacheck(struct super_block *sb,
 
 
                 LASSERT(sb_dqopt(sb)->files[i] != NULL);
-                INIT_LIST_HEAD(&id_list);
+                CFS_INIT_LIST_HEAD(&id_list);
 #ifndef KERNEL_SUPPORTS_QUOTA_READ
                 rc = lustre_get_qids(sb_dqopt(sb)->files[i], NULL, i, &id_list);
 #else
@@ -2055,8 +2116,8 @@ static int fsfilt_ext3_quotacheck(struct super_block *sb,
                 if (rc)
                         CERROR("read old limits failed. (rc:%d)\n", rc);
 
-                list_for_each_entry_safe(dqid, tmp, &id_list, di_link) {
-                        list_del_init(&dqid->di_link);
+                cfs_list_for_each_entry_safe(dqid, tmp, &id_list, di_link) {
+                        cfs_list_del_init(&dqid->di_link);
 
                         if (!rc)
                                 cqget(sb, qctxt->qckt_hash, &qctxt->qckt_list,
@@ -2099,7 +2160,7 @@ static int fsfilt_ext3_quotainfo(struct lustre_quota_info *lqi, int type,
 
         if (lqi->qi_files[type] == NULL) {
                 CERROR("operate qinfo before it's enabled!\n");
-                RETURN(-EIO);
+                RETURN(-ESRCH);
         }
 
         switch (cmd) {
@@ -2130,7 +2191,7 @@ static int fsfilt_ext3_quotainfo(struct lustre_quota_info *lqi, int type,
 }
 
 static int fsfilt_ext3_qids(struct file *file, struct inode *inode, int type,
-                            struct list_head *list)
+                            cfs_list_t *list)
 {
         return lustre_get_qids(file, inode, type, list);
 }
@@ -2142,7 +2203,7 @@ static int fsfilt_ext3_dquot(struct lustre_dquot *dquot, int cmd)
 
         if (dquot->dq_info->qi_files[dquot->dq_type] == NULL) {
                 CERROR("operate dquot before it's enabled!\n");
-                RETURN(-EIO);
+                RETURN(-ESRCH);
         }
 
         switch (cmd) {
@@ -2154,9 +2215,9 @@ static int fsfilt_ext3_dquot(struct lustre_dquot *dquot, int cmd)
                     dquot->dq_dqb.dqb_isoftlimit ||
                     dquot->dq_dqb.dqb_bhardlimit ||
                     dquot->dq_dqb.dqb_bsoftlimit)
-                        clear_bit(DQ_FAKE_B, &dquot->dq_flags);
+                        cfs_clear_bit(DQ_FAKE_B, &dquot->dq_flags);
                 else
-                        set_bit(DQ_FAKE_B, &dquot->dq_flags);
+                        cfs_set_bit(DQ_FAKE_B, &dquot->dq_flags);
 
                 rc = lustre_commit_dquot(dquot);
                 if (rc >= 0)
@@ -2195,6 +2256,72 @@ lvfs_sbdev_type fsfilt_ext3_journal_sbdev(struct super_block *sb)
 }
 EXPORT_SYMBOL(fsfilt_ext3_journal_sbdev);
 
+ssize_t lustre_read_quota(struct file *f, struct inode *inode, int type,
+                          char *buf, int count, loff_t pos)
+{
+        loff_t p = pos;
+        int rc;
+
+        if (!f && !inode) {
+                CERROR("lustre_read_quota failed for no quota file!\n");
+                libcfs_debug_dumpstack(NULL);
+                return -EINVAL;
+        }
+
+        /* Support for both adm and op quota files must be provided */
+        if (f) {
+                rc = fsfilt_ext3_read_record(f, buf, count, &p);
+                rc = rc < 0 ? rc : p - pos;
+        } else {
+                struct super_block *sb = inode->i_sb;
+                rc = sb->s_op->quota_read(sb, type, buf, count, pos);
+        }
+        return rc;
+}
+
+ssize_t lustre_write_quota(struct file *f, char *buf, int count, loff_t pos)
+{
+        loff_t p = pos;
+        int rc;
+
+        /* Only adm quota files are supported, op updates are handled by vfs */
+        rc = fsfilt_ext3_write_record(f, buf, count, &p, 0);
+        rc = rc < 0 ? rc : p - pos;
+
+        return rc;
+}
+
+void *lustre_quota_journal_start(struct inode *inode, int delete)
+{
+        handle_t *handle;
+        unsigned block_count;
+
+        if (delete) {
+                /* each indirect block (+4) may become free, attaching to the
+                 * header list of free blocks (+1); the data block (+1) may
+                 * become a free block (+0) or a block with free dqentries (+0) */
+                block_count = (4 + 1) + 1;
+                handle = ext3_journal_start(inode,
+                            block_count*FSFILT_DATA_TRANS_BLOCKS(inode->i_sb)+2);
+        } else {
+                /* indirect blocks are touched (+4), each causes file expansion (+0) or
+                 * freeblk reusage with a header update (+1); dqentry is either reused
+                 * causing update of the entry block (+1), prev (+1) and next (+1) or
+                 * a new block allocation (+1) with a header update (+1)              */
+                block_count = (4 + 1) + 3;
+                handle = ext3_journal_start(inode,
+                             block_count*FSFILT_DATA_TRANS_BLOCKS(inode->i_sb)+2);
+
+        }
+
+        return handle;
+}
+
+void lustre_quota_journal_stop(void *handle)
+{
+        ext3_journal_stop((handle_t *)handle);
+}
+
 static struct fsfilt_operations fsfilt_ext3_ops = {
         .fs_type                = "ext3",
         .fs_owner               = THIS_MODULE,