patch queue updated

["Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>]

I have updated the patch queue at 

http://www.radian.org/~kvaneesh/ext4/patch-series/

http://www.radian.org/~kvaneesh/ext4/patch-series/ext4-patch-queue.tar

Changes:
a) Add large-file-blocktype.patch  large-file.patch patch.
b) Add the stable-boundary-patch with dummy change
c) Add stable-boundary-undo.patch which undo the above dummy change.
d) Update the series to point to the right file name ext4_grpnum_t_int_fix.patch
  instead of ext4_grpnum_t_negative_value_fix.patch

The diff between the content of the current patch-queu and the this is below

-aneesh


diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 2ba49ff..9ffae96 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -124,7 +124,7 @@ static int ext4_readdir(struct file * filp,
	offset = filp->f_pos & (sb->s_blocksize - 1);

	while (!error && !stored && filp->f_pos < inode->i_size) {
-		unsigned long blk = filp->f_pos >> EXT4_BLOCK_SIZE_BITS(sb);
+		ext4_lblk_t blk = filp->f_pos >> EXT4_BLOCK_SIZE_BITS(sb);
		struct buffer_head map_bh;
		struct buffer_head *bh = NULL;

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 0ea6122..392b76e 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -144,7 +144,7 @@ static int ext4_ext_dirty(handle_t *handle, struct inode *inode,

static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode,
			      struct ext4_ext_path *path,
-			      ext4_fsblk_t block)
+			      ext4_lblk_t block)
{
	struct ext4_inode_info *ei = EXT4_I(inode);
	ext4_fsblk_t bg_start;
@@ -367,13 +367,14 @@ static void ext4_ext_drop_refs(struct ext4_ext_path *path)
 * the header must be checked before calling this
 */
static void
-ext4_ext_binsearch_idx(struct inode *inode, struct ext4_ext_path *path, int block)
+ext4_ext_binsearch_idx(struct inode *inode,
+			struct ext4_ext_path *path, ext4_lblk_t block)
{
	struct ext4_extent_header *eh = path->p_hdr;
	struct ext4_extent_idx *r, *l, *m;


-	ext_debug("binsearch for %d(idx):  ", block);
+	ext_debug("binsearch for %lu(idx):  ", (unsigned long)block);

	l = EXT_FIRST_INDEX(eh) + 1;
	r = EXT_LAST_INDEX(eh);
@@ -425,7 +426,8 @@ ext4_ext_binsearch_idx(struct inode *inode, struct ext4_ext_path *path, int bloc
 * the header must be checked before calling this
 */
static void
-ext4_ext_binsearch(struct inode *inode, struct ext4_ext_path *path, int block)
+ext4_ext_binsearch(struct inode *inode,
+		struct ext4_ext_path *path, ext4_lblk_t block)
{
	struct ext4_extent_header *eh = path->p_hdr;
	struct ext4_extent *r, *l, *m;
@@ -438,7 +440,7 @@ ext4_ext_binsearch(struct inode *inode, struct ext4_ext_path *path, int block)
		return;
	}

-	ext_debug("binsearch for %d:  ", block);
+	ext_debug("binsearch for %lu:  ", (unsigned long)block);

	l = EXT_FIRST_EXTENT(eh) + 1;
	r = EXT_LAST_EXTENT(eh);
@@ -494,7 +496,8 @@ int ext4_ext_tree_init(handle_t *handle, struct inode *inode)
}

struct ext4_ext_path *
-ext4_ext_find_extent(struct inode *inode, int block, struct ext4_ext_path *path)
+ext4_ext_find_extent(struct inode *inode, ext4_lblk_t block,
+					struct ext4_ext_path *path)
{
	struct ext4_extent_header *eh;
	struct buffer_head *bh;
@@ -979,8 +982,8 @@ repeat:
		/* refill path */
		ext4_ext_drop_refs(path);
		path = ext4_ext_find_extent(inode,
-					    le32_to_cpu(newext->ee_block),
-					    path);
+				    (ext4_lblk_t )le32_to_cpu(newext->ee_block),
+				    path);
		if (IS_ERR(path))
			err = PTR_ERR(path);
	} else {
@@ -992,8 +995,8 @@ repeat:
		/* refill path */
		ext4_ext_drop_refs(path);
		path = ext4_ext_find_extent(inode,
-					    le32_to_cpu(newext->ee_block),
-					    path);
+				   (ext4_lblk_t)le32_to_cpu(newext->ee_block),
+				    path);
		if (IS_ERR(path)) {
			err = PTR_ERR(path);
			goto out;
@@ -1023,7 +1026,7 @@ out:
 */
int
ext4_ext_search_left(struct inode *inode, struct ext4_ext_path *path,
-			ext4_fsblk_t *logical, ext4_fsblk_t *phys)
+			ext4_lblk_t *logical, ext4_fsblk_t *phys)
{
	struct ext4_extent_idx *ix;
	struct ext4_extent *ex;
@@ -1066,7 +1069,7 @@ ext4_ext_search_left(struct inode *inode, struct ext4_ext_path *path,
 */
int
ext4_ext_search_right(struct inode *inode, struct ext4_ext_path *path,
-			ext4_fsblk_t *logical, ext4_fsblk_t *phys)
+			ext4_lblk_t *logical, ext4_fsblk_t *phys)
{
	struct buffer_head *bh = NULL;
	struct ext4_extent_header *eh;
@@ -1196,7 +1199,7 @@ ext4_ext_next_allocated_block(struct ext4_ext_path *path)
 * ext4_ext_next_leaf_block:
 * returns first allocated block from next leaf or EXT_MAX_BLOCK
 */
-static unsigned ext4_ext_next_leaf_block(struct inode *inode,
+static ext4_lblk_t ext4_ext_next_leaf_block(struct inode *inode,
					struct ext4_ext_path *path)
{
	int depth;
@@ -1214,7 +1217,7 @@ static unsigned ext4_ext_next_leaf_block(struct inode *inode,
	while (depth >= 0) {
		if (path[depth].p_idx !=
				EXT_LAST_INDEX(path[depth].p_hdr))
-		  return le32_to_cpu(path[depth].p_idx[1].ei_block);
+		  return (ext4_lblk_t)le32_to_cpu(path[depth].p_idx[1].ei_block);
		depth--;
	}

@@ -1432,7 +1435,8 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode,
	struct ext4_extent *ex, *fex;
	struct ext4_extent *nearex; /* nearest extent */
	struct ext4_ext_path *npath = NULL;
-	int depth, len, err, next;
+	int depth, len, err;
+	ext4_lblk_t next;
	unsigned uninitialized = 0;

	BUG_ON(ext4_ext_get_actual_len(newext) == 0);
@@ -1577,114 +1581,8 @@ cleanup:
	return err;
}

-int ext4_ext_walk_space(struct inode *inode, unsigned long block,
-			unsigned long num, ext_prepare_callback func,
-			void *cbdata)
-{
-	struct ext4_ext_path *path = NULL;
-	struct ext4_ext_cache cbex;
-	struct ext4_extent *ex;
-	unsigned long next, start = 0, end = 0;
-	unsigned long last = block + num;
-	int depth, exists, err = 0;
-
-	BUG_ON(func == NULL);
-	BUG_ON(inode == NULL);
-
-	while (block < last && block != EXT_MAX_BLOCK) {
-		num = last - block;
-		/* find extent for this block */
-		path = ext4_ext_find_extent(inode, block, path);
-		if (IS_ERR(path)) {
-			err = PTR_ERR(path);
-			path = NULL;
-			break;
-		}
-
-		depth = ext_depth(inode);
-		BUG_ON(path[depth].p_hdr == NULL);
-		ex = path[depth].p_ext;
-		next = ext4_ext_next_allocated_block(path);
-
-		exists = 0;
-		if (!ex) {
-			/* there is no extent yet, so try to allocate
-			 * all requested space */
-			start = block;
-			end = block + num;
-		} else if (le32_to_cpu(ex->ee_block) > block) {
-			/* need to allocate space before found extent */
-			start = block;
-			end = le32_to_cpu(ex->ee_block);
-			if (block + num < end)
-				end = block + num;
-		} else if (block >= le32_to_cpu(ex->ee_block)
-					+ ext4_ext_get_actual_len(ex)) {
-			/* need to allocate space after found extent */
-			start = block;
-			end = block + num;
-			if (end >= next)
-				end = next;
-		} else if (block >= le32_to_cpu(ex->ee_block)) {
-			/*
-			 * some part of requested space is covered
-			 * by found extent
-			 */
-			start = block;
-			end = le32_to_cpu(ex->ee_block)
-				+ ext4_ext_get_actual_len(ex);
-			if (block + num < end)
-				end = block + num;
-			exists = 1;
-		} else {
-			BUG();
-		}
-		BUG_ON(end <= start);
-
-		if (!exists) {
-			cbex.ec_block = start;
-			cbex.ec_len = end - start;
-			cbex.ec_start = 0;
-			cbex.ec_type = EXT4_EXT_CACHE_GAP;
-		} else {
-			cbex.ec_block = le32_to_cpu(ex->ee_block);
-			cbex.ec_len = ext4_ext_get_actual_len(ex);
-			cbex.ec_start = ext_pblock(ex);
-			cbex.ec_type = EXT4_EXT_CACHE_EXTENT;
-		}
-
-		BUG_ON(cbex.ec_len == 0);
-		err = func(inode, path, &cbex, cbdata);
-		ext4_ext_drop_refs(path);
-
-		if (err < 0)
-			break;
-		if (err == EXT_REPEAT)
-			continue;
-		else if (err == EXT_BREAK) {
-			err = 0;
-			break;
-		}
-
-		if (ext_depth(inode) != depth) {
-			/* depth was changed. we have to realloc path */
-			kfree(path);
-			path = NULL;
-		}
-
-		block = cbex.ec_block + cbex.ec_len;
-	}
-
-	if (path) {
-		ext4_ext_drop_refs(path);
-		kfree(path);
-	}
-
-	return err;
-}
-
static void
-ext4_ext_put_in_cache(struct inode *inode, __u32 block,
+ext4_ext_put_in_cache(struct inode *inode, ext4_lblk_t block,
			__u32 len, ext4_fsblk_t start, int type)
{
	struct ext4_ext_cache *cex;
@@ -1703,10 +1601,11 @@ ext4_ext_put_in_cache(struct inode *inode, __u32 block,
 */
static void
ext4_ext_put_gap_in_cache(struct inode *inode, struct ext4_ext_path *path,
-				unsigned long block)
+				ext4_lblk_t block)
{
	int depth = ext_depth(inode);
-	unsigned long lblock, len;
+	unsigned long len;
+	ext4_lblk_t lblock;
	struct ext4_extent *ex;

	ex = path[depth].p_ext;
@@ -1743,7 +1642,7 @@ ext4_ext_put_gap_in_cache(struct inode *inode, struct ext4_ext_path *path,
}

static int
-ext4_ext_in_cache(struct inode *inode, unsigned long block,
+ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
			struct ext4_extent *ex)
{
	struct ext4_ext_cache *cex;
@@ -2238,9 +2137,9 @@ void ext4_ext_release(struct super_block *sb)
 *   b> Splits in two extents: Write is happening at either end of the extent
 *   c> Splits in three extents: Somone is writing in middle of the extent
 */
-int ext4_ext_convert_to_initialized(handle_t *handle, struct inode *inode,
+static int ext4_ext_convert_to_initialized(handle_t *handle, struct inode *inode,
					struct ext4_ext_path *path,
-					ext4_fsblk_t iblock,
+					ext4_lblk_t iblock,
					unsigned long max_blocks)
{
	struct ext4_extent *ex, newex;
@@ -2374,7 +2273,7 @@ out:
 * mutex_lock(&EXT4_I(inode)->truncate_mutex);
 */
int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
-			ext4_fsblk_t iblock,
+			ext4_lblk_t iblock,
			unsigned long max_blocks, struct buffer_head *bh_result,
			int create, int extend_disksize)
{
@@ -2387,8 +2286,9 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
	struct ext4_allocation_request ar;

	__clear_bit(BH_New, &bh_result->b_state);
-	ext_debug("blocks %d/%lu requested for inode %u\n", (int) iblock,
-			max_blocks, (unsigned) inode->i_ino);
+	ext_debug("blocks %lu/%lu requested for inode %u\n",
+			(unsigned long) iblock, max_blocks,
+			(unsigned) inode->i_ino);

	/* check in cache */
	goal = ext4_ext_in_cache(inode, iblock, &newex);
@@ -2436,7 +2336,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,

	ex = path[depth].p_ext;
	if (ex) {
-		unsigned long ee_block = le32_to_cpu(ex->ee_block);
+		ext4_lblk_t ee_block = le32_to_cpu(ex->ee_block);
		ext4_fsblk_t ee_start = ext_pblock(ex);
		unsigned short ee_len;

@@ -2686,7 +2586,8 @@ int ext4_ext_writepage_trans_blocks(struct inode *inode, int num)
long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
{
	handle_t *handle;
-	ext4_fsblk_t block, max_blocks;
+	ext4_lblk_t block;
+	unsigned long max_blocks;
	ext4_fsblk_t nblocks = 0;
	int ret = 0;
	int ret2 = 0;
@@ -2731,8 +2632,9 @@ retry:
		if (!ret) {
			ext4_error(inode->i_sb, "ext4_fallocate",
				   "ext4_ext_get_blocks returned 0! inode#%lu"
-				   ", block=%llu, max_blocks=%llu",
-				   inode->i_ino, block, max_blocks);
+				   ", block=%lu, max_blocks=%lu",
+				   inode->i_ino, (unsigned long)block,
+				   (unsigned long)max_blocks);
			ret = -EIO;
			ext4_mark_inode_dirty(handle, inode);
			ret2 = ext4_journal_stop(handle);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 33ffd14..ca4e125 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -107,7 +107,7 @@ int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
 */
static unsigned long blocks_for_truncate(struct inode *inode)
{
-	unsigned long needed;
+	ext4_lblk_t needed;

	needed = inode->i_blocks >> (inode->i_sb->s_blocksize_bits - 9);

@@ -277,7 +277,8 @@ static inline void add_chain(Indirect *p, struct buffer_head *bh, __le32 *v)
 */

static int ext4_block_to_path(struct inode *inode,
-			long i_block, int offsets[4], int *boundary)
+			ext4_lblk_t i_block,
+			ext4_lblk_t offsets[4], int *boundary)
{
	int ptrs = EXT4_ADDR_PER_BLOCK(inode->i_sb);
	int ptrs_bits = EXT4_ADDR_PER_BLOCK_BITS(inode->i_sb);
@@ -345,7 +346,8 @@ static int ext4_block_to_path(struct inode *inode,
 *      Need to be called with
 *      mutex_lock(&EXT4_I(inode)->truncate_mutex)
 */
-static Indirect *ext4_get_branch(struct inode *inode, int depth, int *offsets,
+static Indirect *ext4_get_branch(struct inode *inode, int depth,
+				 ext4_lblk_t  *offsets,
				 Indirect chain[4], int *err)
{
	struct super_block *sb = inode->i_sb;
@@ -434,7 +436,7 @@ static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind)
 *	stores it in *@goal and returns zero.
 */

-static ext4_fsblk_t ext4_find_goal(struct inode *inode, long block,
+static ext4_fsblk_t ext4_find_goal(struct inode *inode, ext4_lblk_t block,
		Indirect chain[4], Indirect *partial)
{
	struct ext4_block_alloc_info *block_i;
@@ -579,7 +581,7 @@ failed_out:
 */
static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
			int indirect_blks, int *blks, ext4_fsblk_t goal,
-			int *offsets, Indirect *branch)
+			ext4_lblk_t *offsets, Indirect *branch)
{
	int blocksize = inode->i_sb->s_blocksize;
	int i, n = 0;
@@ -669,7 +671,7 @@ failed:
 * chain to new block and return 0.
 */
static int ext4_splice_branch(handle_t *handle, struct inode *inode,
-			long block, Indirect *where, int num, int blks)
+			ext4_lblk_t block, Indirect *where, int num, int blks)
{
	int i;
	int err = 0;
@@ -777,12 +779,12 @@ err_out:
 * mutex_lock(&EXT4_I(inode)->truncate_mutex)
 */
int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
-		sector_t iblock, unsigned long maxblocks,
+		ext4_lblk_t iblock, unsigned long maxblocks,
		struct buffer_head *bh_result,
		int create, int extend_disksize)
{
	int err = -EIO;
-	int offsets[4];
+	ext4_lblk_t offsets[4];
	Indirect chain[4];
	Indirect *partial;
	ext4_fsblk_t goal;
@@ -796,7 +798,8 @@ int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,

	J_ASSERT(!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL));
	J_ASSERT(handle != NULL || create == 0);
-	depth = ext4_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
+	depth = ext4_block_to_path(inode, iblock, offsets,
+					&blocks_to_boundary);

	if (depth == 0)
		goto out;
@@ -945,7 +948,7 @@ get_block:
 * `handle' can be NULL if create is zero
 */
struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode,
-				long block, int create, int *errp)
+				ext4_lblk_t block, int create, int *errp)
{
	struct buffer_head dummy;
	int fatal = 0, err;
@@ -1012,7 +1015,7 @@ err:
}

struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,
-			       int block, int create, int *err)
+			       ext4_lblk_t block, int create, int *err)
{
	struct buffer_head * bh;

@@ -1869,7 +1872,8 @@ int ext4_block_truncate_page(handle_t *handle, struct page *page,
{
	ext4_fsblk_t index = from >> PAGE_CACHE_SHIFT;
	unsigned offset = from & (PAGE_CACHE_SIZE-1);
-	unsigned blocksize, iblock, length, pos;
+	unsigned blocksize, length, pos;
+	ext4_lblk_t iblock;
	struct inode *inode = mapping->host;
	struct buffer_head *bh;
	int err = 0;
@@ -2005,7 +2009,7 @@ static inline int all_zeroes(__le32 *p, __le32 *q)
 *			(no partially truncated stuff there).  */

static Indirect *ext4_find_shared(struct inode *inode, int depth,
-			int offsets[4], Indirect chain[4], __le32 *top)
+			ext4_lblk_t offsets[4], Indirect chain[4], __le32 *top)
{
	Indirect *partial, *p;
	int k, err;
@@ -2330,12 +2334,12 @@ void ext4_truncate(struct inode *inode)
	__le32 *i_data = ei->i_data;
	int addr_per_block = EXT4_ADDR_PER_BLOCK(inode->i_sb);
	struct address_space *mapping = inode->i_mapping;
-	int offsets[4];
+	ext4_lblk_t offsets[4];
	Indirect chain[4];
	Indirect *partial;
	__le32 nr = 0;
	int n;
-	long last_block;
+	ext4_lblk_t last_block;
	unsigned blocksize = inode->i_sb->s_blocksize;
	struct page *page;

@@ -2710,6 +2714,7 @@ void ext4_read_inode(struct inode * inode)
	struct ext4_inode_info *ei = EXT4_I(inode);
	struct buffer_head *bh;
	int block;
+	struct super_block *sb = inode->i_sb;

#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
	ei->i_acl = EXT4_ACL_NOT_CACHED;
@@ -2751,7 +2756,17 @@ void ext4_read_inode(struct inode * inode)
		 * recovery code: that's fine, we're about to complete
		 * the process of deleting those. */
	}
-	inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
+	if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_LARGE_BLOCK)) {
+		/*
+		 * The filesystem inode i_blocks is represented in terms of
+		 * file system blocks size.
+		 * vfs inode i_blocks = (x* filesystemblocksize)/512
+		 */
+		inode->i_blocks = (blkcnt_t)le32_to_cpu(raw_inode->i_blocks) <<
+						(inode->i_blkbits - 9);
+	} else {
+		inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
+	}
	ei->i_flags = le32_to_cpu(raw_inode->i_flags);
	ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl);
	if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
@@ -2860,6 +2875,7 @@ static int ext4_do_update_inode(handle_t *handle,
	struct ext4_inode *raw_inode = ext4_raw_inode(iloc);
	struct ext4_inode_info *ei = EXT4_I(inode);
	struct buffer_head *bh = iloc->bh;
+	struct super_block *sb = inode->i_sb;
	int err = 0, rc, block;

	/* For fields not not tracking in the in-memory inode,
@@ -2901,7 +2917,12 @@ static int ext4_do_update_inode(handle_t *handle,
	EXT4_INODE_SET_XTIME(i_atime, inode, raw_inode);
	EXT4_EINODE_SET_XTIME(i_crtime, ei, raw_inode);

-	raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
+	if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_LARGE_BLOCK)) {
+		raw_inode->i_blocks = cpu_to_le32(inode->i_blocks >>
+							(inode->i_blkbits - 9));
+	} else {
+		raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
+	}
	raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
	raw_inode->i_flags = cpu_to_le32(ei->i_flags);
	if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index af21e35..ca10875 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -349,7 +349,7 @@ struct ext4_prealloc_space {
	atomic_t		pa_count;
	unsigned		pa_deleted;
	ext4_fsblk_t		pa_pstart;	/* phys. block */
-	unsigned long		pa_lstart;	/* log. block */
+	ext4_lblk_t		pa_lstart;	/* log. block */
	unsigned short		pa_len;		/* len of preallocated chunk */
	unsigned short		pa_free;	/* how many blocks are free */
	unsigned short		pa_linear;	/* consumed in one direction
@@ -360,7 +360,7 @@ struct ext4_prealloc_space {


struct ext4_free_extent {
-	unsigned long fe_logical;
+	ext4_lblk_t fe_logical;
	ext4_grpblk_t fe_start;
	ext4_grpnum_t fe_group;
	unsigned long fe_len;
@@ -550,41 +550,6 @@ static inline void mb_clear_bit_atomic(int bit, void *addr)
	ext4_clear_bit_atomic(NULL, bit, addr);
}

-static inline int mb_find_next_zero_bit(void *addr, int max, int start)
-{
-	int fix;
-#if BITS_PER_LONG == 64
-	fix = ((unsigned long) addr & 7UL) << 3;
-	addr = (void *) ((unsigned long) addr & ~7UL);
-#elif BITS_PER_LONG == 32
-	fix = ((unsigned long) addr & 3UL) << 3;
-	addr = (void *) ((unsigned long) addr & ~3UL);
-#else
-#error "how many bits you are?!"
-#endif
-	max += fix;
-	start += fix;
-	return ext4_find_next_zero_bit(addr, max, start) - fix;
-}
-
-static inline int mb_find_next_bit(void *addr, int max, int start)
-{
-	int fix;
-#if BITS_PER_LONG == 64
-	fix = ((unsigned long) addr & 7UL) << 3;
-	addr = (void *) ((unsigned long) addr & ~7UL);
-#elif BITS_PER_LONG == 32
-	fix = ((unsigned long) addr & 3UL) << 3;
-	addr = (void *) ((unsigned long) addr & ~3UL);
-#else
-#error "how many bits you are?!"
-#endif
-	max += fix;
-	start += fix;
-
-	return ext4_find_next_bit(addr, max, start) - fix;
-}
-
static inline void *mb_find_buddy(struct ext4_buddy *e4b, int order, int *max)
{
	char *bb;
@@ -2062,13 +2027,13 @@ static int ext4_mb_seq_history_show(struct seq_file *seq, void *v)
			"%-5u %-5s %-5u %-6u\n";
		sprintf(buf2, "%lu/%d/%lu@%lu", hs->result.fe_group,
			hs->result.fe_start, hs->result.fe_len,
-			hs->result.fe_logical);
+			(unsigned long)hs->result.fe_logical);
		sprintf(buf, "%lu/%d/%lu@%lu", hs->orig.fe_group,
			hs->orig.fe_start, hs->orig.fe_len,
-			hs->orig.fe_logical);
+			(unsigned long)hs->orig.fe_logical);
		sprintf(buf3, "%lu/%d/%lu@%lu", hs->goal.fe_group,
			hs->goal.fe_start, hs->goal.fe_len,
-			hs->goal.fe_logical);
+			(unsigned long)hs->goal.fe_logical);
		seq_printf(seq, fmt, hs->pid, hs->ino, buf, buf3, buf2,
				hs->found, hs->groups, hs->cr, hs->flags,
				hs->merged ? "M" : "", hs->tail,
@@ -2077,10 +2042,10 @@ static int ext4_mb_seq_history_show(struct seq_file *seq, void *v)
		fmt = "%-5u %-8u %-23s %-23s %-23s\n";
		sprintf(buf2, "%lu/%d/%lu@%lu", hs->result.fe_group,
			hs->result.fe_start, hs->result.fe_len,
-			hs->result.fe_logical);
+			(unsigned long)hs->result.fe_logical);
		sprintf(buf, "%lu/%d/%lu@%lu", hs->orig.fe_group,
			hs->orig.fe_start, hs->orig.fe_len,
-			hs->orig.fe_logical);
+			(unsigned long)hs->orig.fe_logical);
		seq_printf(seq, fmt, hs->pid, hs->ino, buf, "", buf2);
	} else if (hs->op == EXT4_MB_HISTORY_DISCARD) {
		sprintf(buf2, "%lu/%d/%lu", hs->result.fe_group,
@@ -3075,17 +3040,14 @@ static void ext4_mb_normalize_group_request(struct ext4_allocation_context *ac)
static void ext4_mb_normalize_request(struct ext4_allocation_context *ac,
				struct ext4_allocation_request *ar)
{
+	unsigned long wind;
+	int bsbits, i;
+	ext4_lblk_t end;
+	struct list_head *cur;
+	loff_t size, orig_size;
+	ext4_lblk_t start, orig_start;
	struct ext4_inode_info *ei = EXT4_I(ac->ac_inode);
	struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
-	loff_t start;
-	loff_t end;
-	loff_t size;
-	loff_t orig_size;
-	loff_t orig_start;
-	loff_t wind;
-	struct list_head *cur;
-	int bsbits;
-	int i;

	/* do normalize only data requests, metadata requests
	   do not need preallocation */
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 3a306b8..b54c084 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -17,7 +17,7 @@
#include <linux/ext4_fs_extents.h>

struct list_blocks_struct {
-	int first_block, last_block;
+	ext4_lblk_t first_block, last_block;
	ext4_fsblk_t first_pblock, last_pblock;
};

@@ -85,7 +85,7 @@ err_out:
	return retval;
}
static int update_extent_range(handle_t *handle, struct inode *inode,
-				ext4_fsblk_t pblock, int blk_num,
+				ext4_fsblk_t pblock, ext4_lblk_t blk_num,
				struct list_blocks_struct *lb)
{
	int retval;
@@ -112,13 +112,13 @@ static int update_extent_range(handle_t *handle, struct inode *inode,
}

static int update_ind_extent_range(handle_t *handle, struct inode *inode,
-					ext4_fsblk_t pblock, int *blk_nump,
-					struct list_blocks_struct *lb)
+				   ext4_fsblk_t pblock, ext4_lblk_t *blk_nump,
+				   struct list_blocks_struct *lb)
{
	struct buffer_head *bh;
	__le32 *i_data;
	int i, retval = 0;
-	int blk_count = *blk_nump;
+	ext4_lblk_t blk_count = *blk_nump;
	unsigned long max_entries = inode->i_sb->s_blocksize >> 2;

	if (!pblock) {
@@ -150,13 +150,13 @@ static int update_ind_extent_range(handle_t *handle, struct inode *inode,

}
static int update_dind_extent_range(handle_t *handle, struct inode *inode,
-					ext4_fsblk_t pblock, int *blk_nump,
-					struct list_blocks_struct *lb)
+				    ext4_fsblk_t pblock, ext4_lblk_t *blk_nump,
+				    struct list_blocks_struct *lb)
{
	struct buffer_head *bh;
	__le32 *i_data;
	int i, retval = 0;
-	int blk_count = *blk_nump;
+	ext4_lblk_t blk_count = *blk_nump;
	unsigned long max_entries = inode->i_sb->s_blocksize >> 2;

	if (!pblock) {
@@ -191,13 +191,13 @@ static int update_dind_extent_range(handle_t *handle, struct inode *inode,

}
static int update_tind_extent_range(handle_t *handle, struct inode *inode,
-					ext4_fsblk_t pblock, int *blk_nump,
-					struct list_blocks_struct *lb)
+				     ext4_fsblk_t pblock, ext4_lblk_t *blk_nump,
+				     struct list_blocks_struct *lb)
{
	struct buffer_head *bh;
	__le32 *i_data;
	int i, retval = 0;
-	int blk_count = *blk_nump;
+	ext4_lblk_t blk_count = *blk_nump;
	unsigned long max_entries = inode->i_sb->s_blocksize >> 2;

	if (!pblock) {
@@ -445,7 +445,7 @@ int ext4_ext_migrate(struct inode * inode, struct file * filp,
	handle_t *handle;
	int retval = 0, i;
	__le32 *i_data;
-	int blk_count = 0;
+	ext4_lblk_t blk_count = 0;
	struct ext4_inode_info *ei;
	struct inode *tmp_inode = NULL;
	struct list_blocks_struct lb;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index e0f5ba6..efc9625 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -51,7 +51,7 @@

static struct buffer_head *ext4_append(handle_t *handle,
					struct inode *inode,
-					u32 *block, int *err)
+					ext4_lblk_t *block, int *err)
{
	struct buffer_head *bh;

@@ -144,8 +144,8 @@ struct dx_map_entry
	u16 size;
};

-static inline unsigned dx_get_block (struct dx_entry *entry);
-static void dx_set_block (struct dx_entry *entry, unsigned value);
+static inline ext4_lblk_t dx_get_block (struct dx_entry *entry);
+static void dx_set_block (struct dx_entry *entry, ext4_lblk_t value);
static inline unsigned dx_get_hash (struct dx_entry *entry);
static void dx_set_hash (struct dx_entry *entry, unsigned value);
static unsigned dx_get_count (struct dx_entry *entries);
@@ -166,7 +166,8 @@ static void dx_sort_map(struct dx_map_entry *map, unsigned count);
static struct ext4_dir_entry_2 *dx_move_dirents (char *from, char *to,
		struct dx_map_entry *offsets, int count);
static struct ext4_dir_entry_2* dx_pack_dirents (char *base, int size);
-static void dx_insert_block (struct dx_frame *frame, u32 hash, u32 block);
+static void dx_insert_block (struct dx_frame *frame,
+					u32 hash, ext4_lblk_t block);
static int ext4_htree_next_block(struct inode *dir, __u32 hash,
				 struct dx_frame *frame,
				 struct dx_frame *frames,
@@ -181,12 +182,12 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
 * Mask them off for now.
 */

-static inline unsigned dx_get_block (struct dx_entry *entry)
+static inline ext4_lblk_t dx_get_block (struct dx_entry *entry)
{
	return le32_to_cpu(entry->block) & 0x00ffffff;
}

-static inline void dx_set_block (struct dx_entry *entry, unsigned value)
+static inline void dx_set_block (struct dx_entry *entry, ext4_lblk_t value)
{
	entry->block = cpu_to_le32(value);
}
@@ -243,8 +244,8 @@ static void dx_show_index (char * label, struct dx_entry *entries)
	int i, n = dx_get_count (entries);
	printk("%s index ", label);
	for (i = 0; i < n; i++) {
-		printk("%x->%u ", i? dx_get_hash(entries + i) :
-				0, dx_get_block(entries + i));
+		printk("%x->%lu ", i? dx_get_hash(entries + i) :
+				0, (unsigned long)dx_get_block(entries + i));
	}
	printk("\n");
}
@@ -297,7 +298,8 @@ struct stats dx_show_entries(struct dx_hash_info *hinfo, struct inode *dir,
	printk("%i indexed blocks...\n", count);
	for (i = 0; i < count; i++, entries++)
	{
-		u32 block = dx_get_block(entries), hash = i? dx_get_hash(entries): 0;
+		ext4_lblk_t block = dx_get_block(entries),
+						hash = i? dx_get_hash(entries): 0;
		u32 range = i < count - 1? (dx_get_hash(entries + 1) - hash): ~hash;
		struct stats stats;
		printk("%s%3u:%03u hash %8x/%8x ",levels?"":"   ", i, block, hash, range);
@@ -560,7 +562,7 @@ static inline struct ext4_dir_entry_2 *ext4_next_entry(struct ext4_dir_entry_2 *
 * into the tree.  If there is an error it is returned in err.
 */
static int htree_dirblock_to_tree(struct file *dir_file,
-				  struct inode *dir, int block,
+				  struct inode *dir, ext4_lblk_t block,
				  struct dx_hash_info *hinfo,
				  __u32 start_hash, __u32 start_minor_hash)
{
@@ -568,7 +570,8 @@ static int htree_dirblock_to_tree(struct file *dir_file,
	struct ext4_dir_entry_2 *de, *top;
	int err, count = 0;

-	dxtrace(printk("In htree dirblock_to_tree: block %d\n", block));
+	dxtrace(printk("In htree dirblock_to_tree: block %lu\n",
+							(unsigned long)block));
	if (!(bh = ext4_bread (NULL, dir, block, 0, &err)))
		return err;

@@ -620,9 +623,9 @@ int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
	struct ext4_dir_entry_2 *de;
	struct dx_frame frames[2], *frame;
	struct inode *dir;
-	int block, err;
+	ext4_lblk_t block;
	int count = 0;
-	int ret;
+	int ret, err;
	__u32 hashval;

	dxtrace(printk("In htree_fill_tree, start hash: %x:%x\n", start_hash,
@@ -752,7 +755,7 @@ static void dx_sort_map (struct dx_map_entry *map, unsigned count)
	} while(more);
}

-static void dx_insert_block(struct dx_frame *frame, u32 hash, u32 block)
+static void dx_insert_block(struct dx_frame *frame, u32 hash, ext4_lblk_t block)
{
	struct dx_entry *entries = frame->entries;
	struct dx_entry *old = frame->at, *new = old + 1;
@@ -847,13 +850,14 @@ static struct buffer_head * ext4_find_entry (struct dentry *dentry,
	struct super_block * sb;
	struct buffer_head * bh_use[NAMEI_RA_SIZE];
	struct buffer_head * bh, *ret = NULL;
-	unsigned long start, block, b;
+	ext4_lblk_t start, block, b;
	int ra_max = 0;		/* Number of bh's in the readahead
				   buffer, bh_use[] */
	int ra_ptr = 0;		/* Current index into readahead
				   buffer */
	int num = 0;
-	int nblocks, i, err;
+	ext4_lblk_t  nblocks;
+	int i, err;
	struct inode *dir = dentry->d_parent->d_inode;
	int namelen;
	const u8 *name;
@@ -914,7 +918,7 @@ restart:
		if (!buffer_uptodate(bh)) {
			/* read error, skip block & hope for the best */
			ext4_error(sb, __FUNCTION__, "reading directory #%lu "
-				   "offset %lu", dir->i_ino, block);
+				   "offset %lu", dir->i_ino, (unsigned long)block);
			brelse(bh);
			goto next;
		}
@@ -961,7 +965,7 @@ static struct buffer_head * ext4_dx_find_entry(struct dentry *dentry,
	struct dx_frame frames[2], *frame;
	struct ext4_dir_entry_2 *de, *top;
	struct buffer_head *bh;
-	unsigned long block;
+	ext4_lblk_t block;
	int retval;
	int namelen = dentry->d_name.len;
	const u8 *name = dentry->d_name.name;
@@ -1174,7 +1178,7 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
	unsigned blocksize = dir->i_sb->s_blocksize;
	unsigned count, continued;
	struct buffer_head *bh2;
-	u32 newblock;
+	ext4_lblk_t newblock;
	u32 hash2;
	struct dx_map_entry *map;
	char *data1 = (*bh)->b_data, *data2;
@@ -1221,8 +1225,9 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
	split = count - move;
	hash2 = map[split].hash;
	continued = hash2 == map[split - 1].hash;
-	dxtrace(printk("Split block %i at %x, %i/%i\n",
-		dx_get_block(frame->at), hash2, split, count-split));
+	dxtrace(printk("Split block %lu at %x, %i/%i\n",
+			(unsigned long)dx_get_block(frame->at),
+					hash2, split, count-split));

	/* Fancy dance to stay within two buffers */
	de2 = dx_move_dirents(data1, data2, map + split, count - split);
@@ -1373,7 +1378,7 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
	int		retval;
	unsigned	blocksize;
	struct dx_hash_info hinfo;
-	u32		block;
+	ext4_lblk_t  block;
	struct fake_dirent *fde;

	blocksize =  dir->i_sb->s_blocksize;
@@ -1453,7 +1458,7 @@ static int ext4_add_entry (handle_t *handle, struct dentry *dentry,
	int	retval;
	int	dx_fallback=0;
	unsigned blocksize;
-	u32 block, blocks;
+	ext4_lblk_t block, blocks;

	sb = dir->i_sb;
	blocksize = sb->s_blocksize;
@@ -1530,7 +1535,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
		       dx_get_count(entries), dx_get_limit(entries)));
	/* Need to split index? */
	if (dx_get_count(entries) == dx_get_limit(entries)) {
-		u32 newblock;
+		ext4_lblk_t newblock;
		unsigned icount = dx_get_count(entries);
		int levels = frame - frames;
		struct dx_entry *entries2;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 5a68910..3d849e8 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1506,14 +1506,44 @@ static void ext4_orphan_cleanup (struct super_block * sb,
 * block limit, and also a limit of (2^32 - 1) 512-byte sectors in i_blocks.
 * We need to be 1 filesystem block less than the 2^32 sector limit.
 */
-static loff_t ext4_max_size(int bits)
+static loff_t ext4_max_size(int bits, struct super_block *sb)
{
	loff_t res = EXT4_NDIR_BLOCKS;
+	int meta_blocks;
	/* This constant is calculated to be the largest file size for a
-	 * dense, 4k-blocksize file such that the total number of
+	 * dense file such that the total number of
	 * sectors in the file, including data and all indirect blocks,
-	 * does not exceed 2^32. */
-	const loff_t upper_limit = 0x1ff7fffd000LL;
+	 * does not exceed 2^32 -1. */
+	loff_t upper_limit;
+
+	if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_LARGE_BLOCK)) {
+		/*
+		 * With __u32 i_blocks representing the total number of blocks
+		 * of the file in file system block size, the max file size
+		 * would be 2**(bits+32) - 1 - blocks taken by the meta data
+		 * blocks multiplied by block size.
+		 */
+		/* total blocks in file system block size*/
+		upper_limit = (1LL << 32) - 1;
+
+	} else {
+		/* total blocks in 512 bytes */
+		upper_limit = (1LL << 32) - 1;
+		/* total blocks in file system block size */
+		upper_limit >>= (bits - 9);
+
+		//upper_limit = 0x1ff7fffd000LL;
+	}
+
+	/* indirect blocks */
+	meta_blocks = 1;
+	/* double indirect blocks */
+	meta_blocks += 1 + (1LL << (bits-2));
+	/* tripple indirect blocks */
+	meta_blocks += 1 + (1LL << (bits-2)) + (1LL << (2*(bits-2)));
+
+	upper_limit -= meta_blocks;
+	upper_limit <<= bits;

	res += 1LL << (bits-2);
	res += 1LL << (2*(bits-2));
@@ -1679,6 +1709,19 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
		       sb->s_id, le32_to_cpu(features));
		goto failed_mount;
	}
+	if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_LARGE_BLOCK)) {
+		/*
+		 * Large file size enabled file system can only be
+		 * mount if kernel is build with CONFIG_LSF
+		 */
+		if (sizeof(root->i_blocks) < sizeof(u64)) {
+			printk(KERN_ERR "EXT4-fs: %s: Unsupported large block "\
+					"option with LSF disabled.\n", sb->s_id);
+			goto failed_mount;
+		}
+
+	}
+
	blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);

	if (blocksize < EXT4_MIN_BLOCK_SIZE ||
@@ -1720,7 +1763,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
		}
	}

-	sb->s_maxbytes = ext4_max_size(sb->s_blocksize_bits);
+	sb->s_maxbytes = ext4_max_size(sb->s_blocksize_bits, sb);

	if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV) {
		sbi->s_inode_size = EXT4_GOOD_OLD_INODE_SIZE;
@@ -2873,7 +2916,7 @@ static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
			       size_t len, loff_t off)
{
	struct inode *inode = sb_dqopt(sb)->files[type];
-	sector_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb);
+	ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb);
	int err = 0;
	int offset = off & (sb->s_blocksize - 1);
	int tocopy;
@@ -2911,7 +2954,7 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
				const char *data, size_t len, loff_t off)
{
	struct inode *inode = sb_dqopt(sb)->files[type];
-	sector_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb);
+	ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb);
	int err = 0;
	int offset = off & (sb->s_blocksize - 1);
	int tocopy;
diff --git a/include/linux/ext4_fs.h b/include/linux/ext4_fs.h
index c0ad0fc..9cef9ed 100644
--- a/include/linux/ext4_fs.h
+++ b/include/linux/ext4_fs.h
@@ -68,11 +68,11 @@

struct ext4_allocation_request {
	struct inode *inode;	/* target inode for block we're allocating */
-	ext4_fsblk_t logical;	/* logical block in target inode */
+	ext4_lblk_t logical;	/* logical block in target inode */
	ext4_fsblk_t goal;	/* phys. target (a hint) */
-	ext4_fsblk_t lleft;	/* the closest logical allocated block to the left */
+	ext4_lblk_t lleft;	/* the closest logical allocated block to the left */
	ext4_fsblk_t pleft;	/* phys. block for ^^^ */
-	ext4_fsblk_t lright;	/* the closest logical allocated block to the right */
+	ext4_lblk_t lright;	/* the closest logical allocated block to the right */
	ext4_fsblk_t pright;	/* phys. block for ^^^ */
	unsigned long len;	/* how many blocks we want to allocate */
	unsigned long flags;	/* flags. see above EXT4_MB_HINT_* */
@@ -717,7 +717,9 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
#define EXT4_FEATURE_INCOMPAT_META_BG		0x0010
#define EXT4_FEATURE_INCOMPAT_EXTENTS		0x0040 /* extents support */
#define EXT4_FEATURE_INCOMPAT_64BIT		0x0080
+#define EXT4_FEATURE_INCOMPAT_MMP               0x0100
#define EXT4_FEATURE_INCOMPAT_FLEX_BG		0x0200
+#define EXT4_FEATURE_INCOMPAT_LARGE_BLOCK	0x0400

#define EXT4_FEATURE_COMPAT_SUPP	EXT2_FEATURE_COMPAT_EXT_ATTR
#define EXT4_FEATURE_INCOMPAT_SUPP	(EXT4_FEATURE_INCOMPAT_FILETYPE| \
@@ -725,7 +727,9 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
					 EXT4_FEATURE_INCOMPAT_META_BG| \
					 EXT4_FEATURE_INCOMPAT_EXTENTS| \
					 EXT4_FEATURE_INCOMPAT_64BIT| \
-					 EXT4_FEATURE_INCOMPAT_FLEX_BG)
+					 EXT4_FEATURE_INCOMPAT_MMP|\
+					 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
+					 EXT4_FEATURE_INCOMPAT_LARGE_BLOCK)
#define EXT4_FEATURE_RO_COMPAT_SUPP	(EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \
					 EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \
					 EXT4_FEATURE_RO_COMPAT_GDT_CSUM| \
@@ -964,10 +968,12 @@ extern void ext4_mb_free_blocks(handle_t *, struct inode *,
/* inode.c */
int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
		struct buffer_head *bh, ext4_fsblk_t blocknr);
-struct buffer_head * ext4_getblk (handle_t *, struct inode *, long, int, int *);
-struct buffer_head * ext4_bread (handle_t *, struct inode *, int, int, int *);
+struct buffer_head * ext4_getblk(handle_t *, struct inode *,
+						ext4_lblk_t, int, int *);
+struct buffer_head * ext4_bread(handle_t *, struct inode *,
+						ext4_lblk_t, int, int *);
int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
-	sector_t iblock, unsigned long maxblocks, struct buffer_head *bh_result,
+	ext4_lblk_t iblock, unsigned long maxblocks, struct buffer_head *bh_result,
	int create, int extend_disksize);

extern void ext4_read_inode (struct inode *);
@@ -1100,7 +1106,7 @@ extern const struct inode_operations ext4_fast_symlink_inode_operations;
extern int ext4_ext_tree_init(handle_t *handle, struct inode *);
extern int ext4_ext_writepage_trans_blocks(struct inode *, int);
extern int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
-			ext4_fsblk_t iblock,
+			ext4_lblk_t iblock,
			unsigned long max_blocks, struct buffer_head *bh_result,
			int create, int extend_disksize);
extern void ext4_ext_truncate(struct inode *, struct page *);
@@ -1116,11 +1122,13 @@ ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
	int retval;
	mutex_lock(&EXT4_I(inode)->truncate_mutex);
	if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) {
-		retval = ext4_ext_get_blocks(handle, inode, block, max_blocks,
-					bh, create, extend_disksize);
+		retval = ext4_ext_get_blocks(handle, inode,
+						(ext4_lblk_t)block, max_blocks,
+						bh, create, extend_disksize);
	} else {
-		retval = ext4_get_blocks_handle(handle, inode, block, max_blocks,
-					bh, create, extend_disksize);
+		retval = ext4_get_blocks_handle(handle, inode,
+						(ext4_lblk_t)block, max_blocks,
+						bh, create, extend_disksize);
	}
	mutex_unlock(&EXT4_I(inode)->truncate_mutex);

diff --git a/include/linux/ext4_fs_extents.h b/include/linux/ext4_fs_extents.h
index 149fd4b..36b9bb0 100644
--- a/include/linux/ext4_fs_extents.h
+++ b/include/linux/ext4_fs_extents.h
@@ -124,20 +124,6 @@ struct ext4_ext_path {
#define EXT4_EXT_CACHE_GAP	1
#define EXT4_EXT_CACHE_EXTENT	2

-/*
- * to be called by ext4_ext_walk_space()
- * negative retcode - error
- * positive retcode - signal for ext4_ext_walk_space(), see below
- * callback must return valid extent (passed or newly created)
- */
-typedef int (*ext_prepare_callback)(struct inode *, struct ext4_ext_path *,
-					struct ext4_ext_cache *,
-					void *);
-
-#define EXT_CONTINUE	0
-#define EXT_BREAK	1
-#define EXT_REPEAT	2
-

#define EXT_MAX_BLOCK	0xffffffff

@@ -233,10 +219,11 @@ extern int ext4_ext_try_to_merge(struct inode *inode,
				 struct ext4_extent *);
extern unsigned int ext4_ext_check_overlap(struct inode *, struct ext4_extent *, struct ext4_ext_path *);
extern int ext4_ext_insert_extent(handle_t *, struct inode *, struct ext4_ext_path *, struct ext4_extent *);
-extern int ext4_ext_walk_space(struct inode *, unsigned long, unsigned long, ext_prepare_callback, void *);
-extern struct ext4_ext_path * ext4_ext_find_extent(struct inode *, int, struct ext4_ext_path *);
-
-extern int ext4_ext_search_left(struct inode *, struct ext4_ext_path *, ext4_fsblk_t *, ext4_fsblk_t *);
-extern int ext4_ext_search_right(struct inode *, struct ext4_ext_path *, ext4_fsblk_t *, ext4_fsblk_t *);
+extern struct ext4_ext_path * ext4_ext_find_extent(struct inode *, ext4_lblk_t,
+							struct ext4_ext_path *);
+extern int ext4_ext_search_left(struct inode *, struct ext4_ext_path *,
+						ext4_lblk_t *, ext4_fsblk_t *);
+extern int ext4_ext_search_right(struct inode *, struct ext4_ext_path *,
+						ext4_lblk_t *, ext4_fsblk_t *);
#endif /* _LINUX_EXT4_EXTENTS */

diff --git a/include/linux/ext4_fs_i.h b/include/linux/ext4_fs_i.h
index bf19a48..94baea0 100644
--- a/include/linux/ext4_fs_i.h
+++ b/include/linux/ext4_fs_i.h
@@ -27,6 +27,9 @@ typedef int ext4_grpblk_t;
/* data type for filesystem-wide blocks number */
typedef unsigned long long ext4_fsblk_t;

+/* data type for file logical block number */
+typedef __u32 ext4_lblk_t;
+
/* data type for block group number */
typedef unsigned long ext4_grpnum_t;

@@ -51,7 +54,7 @@ struct ext4_block_alloc_info {
	 * most-recently-allocated block in this file.
	 * We use this for detecting linearly ascending allocation requests.
	 */
-	__u32 last_alloc_logical_block;
+	ext4_lblk_t last_alloc_logical_block;
	/*
	 * Was i_next_alloc_goal in ext4_inode_info
	 * is the *physical* companion to i_next_alloc_block.
@@ -70,7 +73,7 @@ struct ext4_block_alloc_info {
 */
struct ext4_ext_cache {
	ext4_fsblk_t	ec_start;
-	__u32		ec_block;
+	ext4_lblk_t	ec_block;
	__u32		ec_len; /* must be 32bit to return holes */
	__u32		ec_type;
};
@@ -98,7 +101,7 @@ struct ext4_inode_info {
	/* block reservation info */
	struct ext4_block_alloc_info *i_block_alloc_info;

-	__u32	i_dir_start_lookup;
+	ext4_lblk_t		i_dir_start_lookup;
#ifdef CONFIG_EXT4DEV_FS_XATTR
	/*
	 * Extended attributes can be read independently of the main file