[Take2 PATCH 00/10][e2fsprogs] Initial blk64_t capable API calls.

[Take2 PATCH 00/10][e2fsprogs] Initial blk64_t capable API calls.

[Jose R. Santos]

The following series of patches implement API call needed to handle
64-bit block numbers.  Im concentrating mainly in providing the API
call first and if the interfaces are sane, we can go ahead and start
using them in the rest of libext2fs and the user space programs.

I've run checkpatch and make check on each individual patch in the
series so they should be ready to add to the main repository if the
interfaces are acceptable.

-JRS

[Take2 PATCH 01/10][e2fsprogs] Add ext2_off64_t type.

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Add ext2_off64_t type.

The ext2_off_t is u32.  Creating a new 64-bit ext2_off64_t for 64bit
offsets.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 lib/ext2fs/ext2fs.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 7a1d966..4eb14d4 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -68,6 +68,7 @@ typedef __u32		blk_t;
 typedef __u64		blk64_t;
 typedef __u32		dgrp_t;
 typedef __u32		ext2_off_t;
+typedef __u64		ext2_off64_t;
 typedef __s64		e2_blkcnt_t;
 typedef __u32		ext2_dirhash_t;
 

[Take2 PATCH 02/10][e2fsprogs] Add new blk64_t handling functions

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Add new blk64_t handling functions

Add new blknum.c file which contains funtions to handle blk64_t and
low/high values in super blocks and inodes.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 lib/ext2fs/Makefile.in |    1 
 lib/ext2fs/blknum.c    |  214 ++++++++++++++++++++++++++++++++++++++++++++++++
 lib/ext2fs/ext2fs.h    |   33 +++++--
 3 files changed, 237 insertions(+), 11 deletions(-)

diff --git a/lib/ext2fs/Makefile.in b/lib/ext2fs/Makefile.in
index 56c6349..8d504ac 100644
--- a/lib/ext2fs/Makefile.in
+++ b/lib/ext2fs/Makefile.in
@@ -26,6 +26,7 @@ OBJS= $(DEBUGFS_LIB_OBJS) $(RESIZE_LIB_OBJS) $(E2IMAGE_LIB_OBJS) \
 	bb_inode.o \
 	bitmaps.o \
 	bitops.o \
+	blknum.o \
 	block.o \
 	bmap.o \
 	check_desc.o \
diff --git a/lib/ext2fs/blknum.c b/lib/ext2fs/blknum.c
new file mode 100644
index 0000000..39d4c29
--- /dev/null
+++ b/lib/ext2fs/blknum.c
@@ -0,0 +1,214 @@
+/*
+ * blknum.c --- Functions to handle blk64_t and high/low 64-bit block
+ * number.
+ *
+ * Copyright IBM Corporation, 2007
+ * Author Jose R. Santos <jrs@us.ibm.com>
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#include "ext2fs.h"
+
+/*
+ * Return the group # of a block
+ */
+dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t blk)
+{
+	return (blk - fs->super->s_first_data_block) /
+		fs->super->s_blocks_per_group;
+}
+
+/*
+ * Return the first block (inclusive) in a group
+ */
+blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group)
+{
+	return fs->super->s_first_data_block +
+		(group * fs->super->s_blocks_per_group);
+}
+
+/*
+ * Return the last block (inclusive) in a group
+ */
+blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group)
+{
+	return (group == fs->group_desc_count - 1 ?
+		ext2fs_blocks_count(fs) - 1 :
+		ext2fs_group_first_block2(fs, group) +
+			(fs->super->s_blocks_per_group - 1));
+}
+
+/*
+ * Return the inode data block count
+ */
+blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
+					struct ext2_inode *inode)
+{
+	return (inode->i_blocks |
+		(fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT ?
+		(__u64)inode->osd2.linux2.l_i_blocks_hi << 32 : 0)) -
+		(inode->i_file_acl ? fs->blocksize >> 9 : 0);
+}
+
+/*
+ * Return the fs block count
+ */
+blk64_t ext2fs_blocks_count(ext2_filsys fs)
+{
+	return fs->super->s_blocks_count |
+		(fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT ?
+		(__u64) fs->super->s_blocks_count_hi << 32 : 0);
+}
+
+/*
+ * Set the fs block count
+ */
+void ext2_blocks_count_set(ext2_filsys fs, blk64_t blk)
+{
+	fs->super->s_blocks_count = blk;
+	if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
+		fs->super->s_blocks_count_hi = (__u64) blk >> 32;
+}
+
+/*
+ * Return the fs reserved block count
+ */
+blk64_t ext2_r_blocks_count(ext2_filsys fs)
+{
+	return fs->super->s_r_blocks_count |
+		(fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT ?
+		(__u64) fs->super->s_r_blocks_count_hi << 32 : 0);
+}
+
+/*
+ * Set the fs reserved block count
+ */
+void ext2_r_blocks_count_set(ext2_filsys fs, blk64_t blk)
+{
+	fs->super->s_r_blocks_count = blk;
+	if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
+		fs->super->s_r_blocks_count_hi = (__u64) blk >> 32;
+}
+
+/*
+ * Return the fs free block count
+ */
+blk64_t ext2_free_blocks_count(ext2_filsys fs)
+{
+	return fs->super->s_free_blocks_count |
+		(fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT ?
+		(__u64) fs->super->s_free_blocks_hi << 32 : 0);
+}
+
+/*
+ * Set the fs free block count
+ */
+void ext2_free_blocks_count_set(ext2_filsys fs, blk64_t blk)
+{
+	fs->super->s_free_blocks_count = blk;
+	if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
+		fs->super->s_free_blocks_hi = (__u64) blk >> 32;
+}
+
+/*
+ * Return the block bitmap block of a group
+ */
+blk64_t ext2_block_bitmap(ext2_filsys fs, dgrp_t group)
+{
+	if (fs->super->s_desc_size >= EXT2_MIN_DESC_SIZE_64BIT) {
+		struct ext4_group_desc *gdp;
+		gdp = (struct ext4_group_desc *) (fs->group_desc) + group;
+
+		return gdp->bg_block_bitmap |
+			(fs->super->s_feature_incompat
+			 & EXT4_FEATURE_INCOMPAT_64BIT ?
+			 (__u64) gdp->bg_block_bitmap_hi << 32 : 0);
+	}
+
+	return fs->group_desc[group].bg_block_bitmap;
+}
+
+/*
+ * Set the block bitmap block of a group
+ */
+void ext2_block_bitmap_set(ext2_filsys fs, dgrp_t group, blk_t blk)
+{
+	if (fs->super->s_desc_size >= EXT2_MIN_DESC_SIZE_64BIT) {
+		struct ext4_group_desc *gdp;
+		gdp = (struct ext4_group_desc *) (fs->group_desc) + group;
+		gdp->bg_block_bitmap = blk;
+		if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
+			gdp->bg_block_bitmap_hi = (__u64) blk >> 32;
+	} else
+		fs->group_desc[group].bg_block_bitmap = blk;
+}
+
+/*
+ * Return the inode bitmap block of a group
+ */
+blk64_t ext2_inode_bitmap(ext2_filsys fs, dgrp_t group)
+{
+	if (fs->super->s_desc_size >= EXT2_MIN_DESC_SIZE_64BIT) {
+		struct ext4_group_desc *gdp;
+		gdp = (struct ext4_group_desc *) (fs->group_desc) + group;
+
+		return gdp->bg_inode_bitmap |
+			(fs->super->s_feature_incompat
+			 & EXT4_FEATURE_INCOMPAT_64BIT ?
+			 (__u64) gdp->bg_inode_bitmap_hi << 32 : 0);
+	}
+
+	return fs->group_desc[group].bg_inode_bitmap;
+}
+
+/*
+ * Set the inode bitmap block of a group
+ */
+void ext2_inode_bitmap_set(ext2_filsys fs, dgrp_t group, blk_t blk)
+{
+	if (fs->super->s_desc_size >= EXT2_MIN_DESC_SIZE_64BIT) {
+		struct ext4_group_desc *gdp;
+		gdp = (struct ext4_group_desc *) (fs->group_desc) + group;
+		gdp->bg_inode_bitmap = blk;
+		if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
+			gdp->bg_inode_bitmap_hi = (__u64) blk >> 32;
+	} else
+		fs->group_desc[group].bg_inode_bitmap = blk;
+}
+
+/*
+ * Return the inode table block of a group
+ */
+blk64_t ext2_inode_table(ext2_filsys fs, dgrp_t group)
+{
+	if (fs->super->s_desc_size >= EXT2_MIN_DESC_SIZE_64BIT) {
+		struct ext4_group_desc *gdp;
+		gdp = (struct ext4_group_desc *) (fs->group_desc) + group;
+
+		return gdp->bg_inode_table |
+			(fs->super->s_feature_incompat
+			 & EXT4_FEATURE_INCOMPAT_64BIT ?
+			 (__u64) gdp->bg_inode_table_hi << 32 : 0);
+	}
+
+	return fs->group_desc[group].bg_inode_table;
+}
+
+/*
+ * Set the inode table block of a group
+ */
+void ext2_inode_table_set(ext2_filsys fs, dgrp_t group, blk_t blk)
+{
+	if (fs->super->s_desc_size >= EXT2_MIN_DESC_SIZE_64BIT) {
+		struct ext4_group_desc *gdp;
+		gdp = (struct ext4_group_desc *) (fs->group_desc) + group;
+		gdp->bg_inode_table = blk;
+		if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
+			gdp->bg_inode_table_hi = (__u64) blk >> 32;
+	} else
+		fs->group_desc[group].bg_inode_table = blk;
+}
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 4eb14d4..97abb3a 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -650,6 +650,24 @@ extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
 					blk_t start, unsigned int num,
 					void *out);
 
+/* blknum.c */
+extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
+extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
+extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
+extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
+					 struct ext2_inode *inode);
+extern blk64_t ext2fs_blocks_count(ext2_filsys fs);
+extern void ext2_blocks_count_set(ext2_filsys fs, blk64_t blk);
+extern blk64_t ext2_r_blocks_count(ext2_filsys fs);
+extern void ext2_r_blocks_count_set(ext2_filsys fs, blk64_t blk);
+extern blk64_t ext2_free_blocks_count(ext2_filsys fs);
+extern void ext2_free_blocks_count_set(ext2_filsys fs, blk64_t blk);
+extern blk64_t ext2_block_bitmap(ext2_filsys fs, dgrp_t group);
+extern void ext2_block_bitmap_set(ext2_filsys fs, dgrp_t group, blk_t blk);
+extern blk64_t ext2_inode_bitmap(ext2_filsys fs, dgrp_t group);
+extern void ext2_inode_bitmap_set(ext2_filsys fs, dgrp_t group, blk_t blk);
+extern blk64_t ext2_inode_table(ext2_filsys fs, dgrp_t group);
+extern void ext2_inode_table_set(ext2_filsys fs, dgrp_t group, blk_t blk);
 
 /* block.c */
 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
@@ -1281,10 +1299,8 @@ _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
  */
 _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
 {
-	return (blk - fs->super->s_first_data_block) /
-		fs->super->s_blocks_per_group;
+	return ext2fs_group_of_blk2(fs, blk);
 }
-
 /*
  * Return the group # of an inode number
  */
@@ -1298,8 +1314,7 @@ _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
  */
 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
 {
-	return fs->super->s_first_data_block +
-		(group * fs->super->s_blocks_per_group);
+	return ext2fs_group_first_block2(fs, group);
 }
 
 /*
@@ -1307,17 +1322,13 @@ _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
  */
 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
 {
-	return (group == fs->group_desc_count - 1 ?
-		fs->super->s_blocks_count - 1 :
-		ext2fs_group_first_block(fs, group) +
-			(fs->super->s_blocks_per_group - 1));
+	return ext2fs_group_last_block2(fs, group);
 }
 
 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
 					struct ext2_inode *inode)
 {
-       return inode->i_blocks -
-              (inode->i_file_acl ? fs->blocksize >> 9 : 0);
+	return ext2fs_inode_data_blocks2(fs, inode);
 }
 
 /*

[Take2 PATCH 03/10][e2fsprogs] Use blk64_t for blocks in struct ext2_file.

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Use blk64_t for blocks in struct ext2_file.

The ext2_file structure is never exposed through the libext2fs API so
it is safe to use 64-bit blocks for blockno and physclock without
breaking the ABI.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 lib/ext2fs/fileio.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/ext2fs/fileio.c b/lib/ext2fs/fileio.c
index 8bf99fb..4b9e1ce 100644
--- a/lib/ext2fs/fileio.c
+++ b/lib/ext2fs/fileio.c
@@ -25,8 +25,8 @@ struct ext2_file {
 	struct ext2_inode	inode;
 	int 			flags;
 	__u64			pos;
-	blk_t			blockno;
-	blk_t			physblock;
+	blk64_t			blockno;
+	blk64_t			physblock;
 	char 			*buf;
 };
 
@@ -116,9 +116,9 @@ errcode_t ext2fs_file_flush(ext2_file_t file)
 	 * Allocate it.
 	 */
 	if (!file->physblock) {
-		retval = ext2fs_bmap(fs, file->ino, &file->inode,
+		retval = ext2fs_bmap2(fs, file->ino, &file->inode,
 				     BMAP_BUFFER, file->ino ? BMAP_ALLOC : 0,
-				     file->blockno, &file->physblock);
+				     file->blockno, 0, &file->physblock);
 		if (retval)
 			return retval;
 	}
@@ -168,8 +168,8 @@ static errcode_t load_buffer(ext2_file_t file, int dontfill)
 	errcode_t	retval;
 
 	if (!(file->flags & EXT2_FILE_BUF_VALID)) {
-		retval = ext2fs_bmap(fs, file->ino, &file->inode,
-				     BMAP_BUFFER, 0, file->blockno,
+		retval = ext2fs_bmap2(fs, file->ino, &file->inode,
+				     BMAP_BUFFER, 0, file->blockno, 0,
 				     &file->physblock);
 		if (retval)
 			return retval;

[Take2 PATCH 04/10][e2fsprogs] Add 64-bit dirblock interface.

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Add 64-bit dirblock interface.

Add new ext2fs_(read|write)_dir_block3() routines that take blk64_t as
an input.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 lib/ext2fs/dirblock.c |   23 +++++++++++++++++------
 lib/ext2fs/ext2fs.h   |    4 ++++
 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/lib/ext2fs/dirblock.c b/lib/ext2fs/dirblock.c
index fb20fa0..c45c6ce 100644
--- a/lib/ext2fs/dirblock.c
+++ b/lib/ext2fs/dirblock.c
@@ -19,7 +19,7 @@
 #include "ext2_fs.h"
 #include "ext2fs.h"
 
-errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
+errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
 				 void *buf, int flags EXT2FS_ATTR((unused)))
 {
 	errcode_t	retval;
@@ -28,7 +28,7 @@ errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
 	unsigned int	name_len, rec_len;
 	
 
- 	retval = io_channel_read_blk(fs->io, block, 1, buf);
+	retval = io_channel_read_blk64(fs->io, block, 1, buf);
 	if (retval)
 		return retval;
 
@@ -58,14 +58,20 @@ errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
 	return retval;
 }
 
+errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
+				 void *buf, int flags EXT2FS_ATTR((unused)))
+{
+	return ext2fs_read_dir_block3(fs, block, buf, flags);
+}
+
 errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
 				 void *buf)
 {
-	return ext2fs_read_dir_block2(fs, block, buf, 0);
+	return ext2fs_read_dir_block3(fs, block, buf, 0);
 }
 
 
-errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
+errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
 				  void *inbuf, int flags EXT2FS_ATTR((unused)))
 {
 #ifdef WORDS_BIGENDIAN
@@ -95,7 +101,7 @@ errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
 		if (flags & EXT2_DIRBLOCK_V2_STRUCT)
 			dirent->name_len = ext2fs_swab16(dirent->name_len);
 	}
- 	retval = io_channel_write_blk(fs->io, block, 1, buf);
+	retval = io_channel_write_blk64(fs->io, block, 1, buf);
 	ext2fs_free_mem(&buf);
 	return retval;
 #else
@@ -103,10 +109,15 @@ errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
 #endif
 }
 
+errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
+				 void *inbuf, int flags EXT2FS_ATTR((unused)))
+{
+	return ext2fs_write_dir_block3(fs, block, inbuf, flags);
+}
 
 errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
 				 void *inbuf)
 {
-	return ext2fs_write_dir_block2(fs, block, inbuf, 0);
+	return ext2fs_write_dir_block3(fs, block, inbuf, 0);
 }
 
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 97abb3a..0043803 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -770,10 +770,14 @@ extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
 				       void *buf);
 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
 					void *buf, int flags);
+extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
+					void *buf, int flags);
 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
 					void *buf);
 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
 					 void *buf, int flags);
+extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
+					 void *buf, int flags);
 
 /* dirhash.c */
 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,

[Take2 PATCH 05/10][e2fsprogs] Add 64-bit alloc_stats interface.

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Add 64-bit alloc_stats interface.

Add new ext2fs_block_alloc_stats2() routine that takes blk64_t as an
input.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 lib/ext2fs/alloc_stats.c |   11 +++++++++--
 lib/ext2fs/ext2fs.h      |    1 +
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/lib/ext2fs/alloc_stats.c b/lib/ext2fs/alloc_stats.c
index 3956528..2f1a8e7 100644
--- a/lib/ext2fs/alloc_stats.c
+++ b/lib/ext2fs/alloc_stats.c
@@ -54,13 +54,15 @@ void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse)
 	ext2fs_inode_alloc_stats2(fs, ino, inuse, 0);
 }
 
-void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse)
+void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse)
 {
-	int	group = ext2fs_group_of_blk(fs, blk);
+	int	group = ext2fs_group_of_blk2(fs, blk);
 
 	if (inuse > 0)
+		/* FIXME-64 */
 		ext2fs_mark_block_bitmap(fs->block_map, blk);
 	else
+		/* FIXME-64 */
 		ext2fs_unmark_block_bitmap(fs->block_map, blk);
 	fs->group_desc[group].bg_free_blocks_count -= inuse;
 	fs->group_desc[group].bg_flags &= ~EXT2_BG_BLOCK_UNINIT;
@@ -70,3 +72,8 @@ void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse)
 	ext2fs_mark_super_dirty(fs);
 	ext2fs_mark_bb_dirty(fs);
 }
+
+void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse)
+{
+	ext2fs_block_alloc_stats2(fs, blk, inuse);
+}
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 0043803..de32dd4 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -554,6 +554,7 @@ void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
 			       int inuse, int isdir);
 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
+void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
 
 /* alloc_tables.c */
 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);

[Take2 PATCH 06/10][e2fsprogs] Add 64-bit alloc interface.

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Add 64-bit alloc interface.

Add new ext2fs_new_block2(), ext2fs_get_free_blocks2() and
ext2fs_alloc_block2() that take and return blk64_t.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 lib/ext2fs/alloc.c  |   59 +++++++++++++++++++++++++++++++++++++++++----------
 lib/ext2fs/ext2fs.h |    8 +++++++
 2 files changed, 55 insertions(+), 12 deletions(-)

diff --git a/lib/ext2fs/alloc.c b/lib/ext2fs/alloc.c
index 65f3ea1..15d1039 100644
--- a/lib/ext2fs/alloc.c
+++ b/lib/ext2fs/alloc.c
@@ -73,10 +73,10 @@ errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir,
  * Stupid algorithm --- we now just search forward starting from the
  * goal.  Should put in a smarter one someday....
  */
-errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
-			   ext2fs_block_bitmap map, blk_t *ret)
+errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
+			   ext2fs_block_bitmap map, blk64_t *ret)
 {
-	blk_t	i;
+	blk64_t	i;
 
 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
 
@@ -88,6 +88,7 @@ errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
 		goal = fs->super->s_first_data_block;
 	i = goal;
 	do {
+		/* FIXME-64 */
 		if (!ext2fs_fast_test_block_bitmap(map, i)) {
 			*ret = i;
 			return 0;
@@ -99,15 +100,26 @@ errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
 	return EXT2_ET_BLOCK_ALLOC_FAIL;
 }
 
+errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
+			   ext2fs_block_bitmap map, blk_t *ret)
+{
+	errcode_t retval;
+	blk64_t val;
+	retval = ext2fs_new_block2(fs, goal, map, &val);
+	if (!retval)
+		*ret = (blk_t) val;
+	return retval;
+}
+
 /*
  * This function zeros out the allocated block, and updates all of the
  * appropriate filesystem records.
  */
-errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
-			     char *block_buf, blk_t *ret)
+errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
+			     char *block_buf, blk64_t *ret)
 {
 	errcode_t	retval;
-	blk_t		block;
+	blk64_t		block;
 	char		*buf = 0;
 
 	if (!block_buf) {
@@ -119,20 +131,21 @@ errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
 	memset(block_buf, 0, fs->blocksize);
 
 	if (!fs->block_map) {
+		/* FIXME-64 */
 		retval = ext2fs_read_block_bitmap(fs);
 		if (retval)
 			goto fail;
 	}
 
-	retval = ext2fs_new_block(fs, goal, 0, &block);
+	retval = ext2fs_new_block2(fs, goal, 0, &block);
 	if (retval)
 		goto fail;
 
-	retval = io_channel_write_blk(fs->io, block, 1, block_buf);
+	retval = io_channel_write_blk64(fs->io, block, 1, block_buf);
 	if (retval)
 		goto fail;
 	
-	ext2fs_block_alloc_stats(fs, block, +1);
+	ext2fs_block_alloc_stats2(fs, block, 1);
 	*ret = block;
 
 fail:
@@ -141,10 +154,21 @@ fail:
 	return retval;
 }
 
-errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,
-				 int num, ext2fs_block_bitmap map, blk_t *ret)
+errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
+			     char *block_buf, blk_t *ret)
+{
+	errcode_t retval;
+	blk64_t	val;
+	retval = ext2fs_alloc_block2(fs, goal, block_buf, &val);
+	if (!retval)
+		*ret = (blk_t) val;
+	return retval;
+}
+
+errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start, blk64_t finish,
+				 int num, ext2fs_block_bitmap map, blk64_t *ret)
 {
-	blk_t	b = start;
+	blk64_t	b = start;
 
 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
 
@@ -161,6 +185,7 @@ errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,
 	do {
 		if (b+num-1 > fs->super->s_blocks_count)
 			b = fs->super->s_first_data_block;
+		/* FIXME-64 */
 		if (ext2fs_fast_test_block_bitmap_range(map, b, num)) {
 			*ret = b;
 			return 0;
@@ -170,3 +195,13 @@ errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,
 	return EXT2_ET_BLOCK_ALLOC_FAIL;
 }
 
+errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,
+				 int num, ext2fs_block_bitmap map, blk_t *ret)
+{
+	errcode_t retval;
+	blk64_t val;
+	retval = ext2fs_get_free_blocks2(fs, start, finish, num, map, &val);
+	if(!retval)
+		*ret = (blk_t) val;
+	return retval;
+}
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index de32dd4..00d1334 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -537,12 +537,20 @@ extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
 				  ext2fs_inode_bitmap map, ext2_ino_t *ret);
 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
 				  ext2fs_block_bitmap map, blk_t *ret);
+extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
+				  ext2fs_block_bitmap map, blk64_t *ret);
 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
 					blk_t finish, int num,
 					ext2fs_block_bitmap map,
 					blk_t *ret);
+extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
+					blk64_t finish, int num,
+					ext2fs_block_bitmap map,
+					blk64_t *ret);
 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
 				    char *block_buf, blk_t *ret);
+extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
+				    char *block_buf, blk64_t *ret);
 
 /* alloc_sb.c */
 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs, 

[Take2 PATCH 07/10][e2fsprogs] Add 64-bit ext_attr interface.

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Add 64-bit ext_attr interface.

Add ext2fs_read_ext_attr2(), ext2fs_write_ext_attr2() and
ext2fs_adjust_ea_refcount2() that take blk64_t as an input.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 lib/ext2fs/ext2fs.h   |    7 +++++++
 lib/ext2fs/ext_attr.c |   31 ++++++++++++++++++++++++-------
 2 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 00d1334..511b9e3 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -829,11 +829,18 @@ extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
 					void *data);
 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
+extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
+				       void *buf);
 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
 				       void *buf);
+extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
+				       void *buf);
 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
 					   char *block_buf,
 					   int adjust, __u32 *newcount);
+extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
+					   char *block_buf,
+					   int adjust, __u32 *newcount);
 
 /* extent.c */
 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
diff --git a/lib/ext2fs/ext_attr.c b/lib/ext2fs/ext_attr.c
index 3d208ec..395d4c7 100644
--- a/lib/ext2fs/ext_attr.c
+++ b/lib/ext2fs/ext_attr.c
@@ -60,11 +60,11 @@ __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry, void *data)
 #undef NAME_HASH_SHIFT
 #undef VALUE_HASH_SHIFT
 
-errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf)
+errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block, void *buf)
 {
 	errcode_t	retval;
 
- 	retval = io_channel_read_blk(fs->io, block, 1, buf);
+	retval = io_channel_read_blk64(fs->io, block, 1, buf);
 	if (retval)
 		return retval;
 #ifdef WORDS_BIGENDIAN
@@ -73,7 +73,12 @@ errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf)
 	return 0;
 }
 
-errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, void *inbuf)
+errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf)
+{
+	return ext2fs_read_ext_attr2(fs, block, buf);
+}
+
+errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block, void *inbuf)
 {
 	errcode_t	retval;
 	char		*write_buf;
@@ -88,7 +93,7 @@ errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, void *inbuf)
 #else
 	write_buf = (char *) inbuf;
 #endif
- 	retval = io_channel_write_blk(fs->io, block, 1, write_buf);
+	retval = io_channel_write_blk64(fs->io, block, 1, write_buf);
 	if (buf)
 		ext2fs_free_mem(&buf);
 	if (!retval)
@@ -96,10 +101,15 @@ errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, void *inbuf)
 	return retval;
 }
 
+errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, void *inbuf)
+{
+	return ext2fs_write_ext_attr2(fs, block, inbuf);
+}
+
 /*
  * This function adjusts the reference count of the EA block.
  */
-errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
+errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
 				    char *block_buf, int adjust,
 				    __u32 *newcount)
 {
@@ -118,7 +128,7 @@ errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
 		block_buf = buf;
 	}
 
-	retval = ext2fs_read_ext_attr(fs, blk, block_buf);
+	retval = ext2fs_read_ext_attr2(fs, blk, block_buf);
 	if (retval)
 		goto errout;
 
@@ -127,7 +137,7 @@ errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
 	if (newcount)
 		*newcount = header->h_refcount;
 
-	retval = ext2fs_write_ext_attr(fs, blk, block_buf);
+	retval = ext2fs_write_ext_attr2(fs, blk, block_buf);
 	if (retval)
 		goto errout;
 
@@ -136,3 +146,10 @@ errout:
 		ext2fs_free_mem(&buf);
 	return retval;
 }
+
+errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
+					char *block_buf, int adjust,
+					__u32 *newcount)
+{
+	return ext2fs_adjust_ea_refcount(fs, blk, block_buf, adjust, newcount);
+}

[Take2 PATCH 08/10][e2fsprogs] Add 64-bit closefs interface.

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Add 64-bit closefs interface.

Add new ext2fs_super_and_bgd_loc2() that returns blk64_t pointers.
The function now returns the number of blocks used by super block and
group descriptors since with flex_bg, it can no longer be assumed that
bitmaps and inode tables still resided within the block group.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 lib/ext2fs/closefs.c |  120 +++++++++++++++++++++++++++++++++++---------------
 lib/ext2fs/ext2fs.h  |    6 +++
 2 files changed, 90 insertions(+), 36 deletions(-)

diff --git a/lib/ext2fs/closefs.c b/lib/ext2fs/closefs.c
index 206faa6..8231ca6 100644
--- a/lib/ext2fs/closefs.c
+++ b/lib/ext2fs/closefs.c
@@ -46,31 +46,33 @@ int ext2fs_bg_has_super(ext2_filsys fs, int group_block)
 }
 
 /*
- * This function returns the location of the superblock, block group
- * descriptors for a given block group.  It currently returns the
- * number of free blocks assuming that inode table and allocation
- * bitmaps will be in the group.  This is not necessarily the case
- * when the flex_bg feature is enabled, so callers should take care!
- * It was only really intended for use by mke2fs, and even there it's
- * not that useful.  In the future, when we redo this function for
- * 64-bit block numbers, we should probably return the number of
- * blocks used by the super block and group descriptors instead.
+ * ext2fs_super_and_bgd_loc2()
+ * @fs:			ext2 fs pointer
+ * @group		given block group
+ * @ret_super_blk:	if !NULL, returns super block location
+ * @ret_old_desc_blk:	if !NULL, returns location of the old block
+ *			group descriptor
+ * @ret_new_desc_blk:	if !NULL, returns location of meta_bg block
+ *			group descriptor
+ * @ret_used_blks:	if !NULL, returns number of blocks used by
+ *			super block and group_descriptors.
  *
- * See also the comment for ext2fs_reserve_super_and_bgd()
+ * Returns errcode_t of 0
  */
-int ext2fs_super_and_bgd_loc(ext2_filsys fs, 
-			     dgrp_t group,
-			     blk_t *ret_super_blk,
-			     blk_t *ret_old_desc_blk,
-			     blk_t *ret_new_desc_blk,
-			     int *ret_meta_bg)
+errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
+					   dgrp_t group,
+					   blk64_t *ret_super_blk,
+					   blk64_t *ret_old_desc_blk,
+					   blk64_t *ret_new_desc_blk,
+					   blk_t *ret_used_blks)
 {
-	blk_t	group_block, super_blk = 0, old_desc_blk = 0, new_desc_blk = 0;
+	blk64_t	group_block, super_blk = 0, old_desc_blk = 0, new_desc_blk = 0;
 	unsigned int meta_bg, meta_bg_size;
-	blk_t	numblocks, old_desc_blocks;
+	blk_t	numblocks = 0;
+	blk64_t old_desc_blocks;
 	int	has_super;
 
-	group_block = ext2fs_group_first_block(fs, group);
+	group_block = ext2fs_group_first_block2(fs, group);
 
 	if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG)
 		old_desc_blocks = fs->super->s_first_meta_bg;
@@ -78,20 +80,11 @@ int ext2fs_super_and_bgd_loc(ext2_filsys fs,
 		old_desc_blocks = 
 			fs->desc_blocks + fs->super->s_reserved_gdt_blocks;
 
-	if (group == fs->group_desc_count-1) {
-		numblocks = (fs->super->s_blocks_count -
-			     fs->super->s_first_data_block) %
-			fs->super->s_blocks_per_group;
-		if (!numblocks)
-			numblocks = fs->super->s_blocks_per_group;
-	} else
-		numblocks = fs->super->s_blocks_per_group;
-
 	has_super = ext2fs_bg_has_super(fs, group);
 
 	if (has_super) {
 		super_blk = group_block;
-		numblocks--;
+		numblocks++;
 	}
 	meta_bg_size = EXT2_DESC_PER_BLOCK(fs->super);
 	meta_bg = group / meta_bg_size;
@@ -100,7 +93,7 @@ int ext2fs_super_and_bgd_loc(ext2_filsys fs,
 	    (meta_bg < fs->super->s_first_meta_bg)) {
 		if (has_super) {
 			old_desc_blk = group_block + 1;
-			numblocks -= old_desc_blocks;
+			numblocks += old_desc_blocks;
 		}
 	} else {
 		if (((group % meta_bg_size) == 0) ||
@@ -109,11 +102,9 @@ int ext2fs_super_and_bgd_loc(ext2_filsys fs,
 			if (has_super)
 				has_super = 1;
 			new_desc_blk = group_block + has_super;
-			numblocks--;
+			numblocks++;
 		}
 	}
-		
-	numblocks -= 2 + fs->inode_blocks_per_group;
 
 	if (ret_super_blk)
 		*ret_super_blk = super_blk;
@@ -121,11 +112,68 @@ int ext2fs_super_and_bgd_loc(ext2_filsys fs,
 		*ret_old_desc_blk = old_desc_blk;
 	if (ret_new_desc_blk)
 		*ret_new_desc_blk = new_desc_blk;
-	if (ret_meta_bg)
-		*ret_meta_bg = meta_bg;
-	return (numblocks);
+	if (ret_used_blks)
+		*ret_used_blks = numblocks;
+
+	return 0;
 }
 
+/*
+ * This function returns the location of the superblock, block group
+ * descriptors for a given block group.  It currently returns the
+ * number of free blocks assuming that inode table and allocation
+ * bitmaps will be in the group.  This is not necessarily the case
+ * when the flex_bg feature is enabled, so callers should take care!
+ * It was only really intended for use by mke2fs, and even there it's
+ * not that useful.
+ *
+ * The ext2fs_super_and_bgd_loc2() function is 64-bit block number
+ * capable and returns the number of blocks used by super block and
+ * group descriptors.
+ */
+int ext2fs_super_and_bgd_loc(ext2_filsys fs,
+			     dgrp_t group,
+			     blk_t *ret_super_blk,
+			     blk_t *ret_old_desc_blk,
+			     blk_t *ret_new_desc_blk,
+			     int *ret_meta_bg)
+{
+	blk64_t ret_super_blk2;
+	blk64_t ret_old_desc_blk2;
+	blk64_t ret_new_desc_blk2;
+	blk_t ret_used_blks;
+	blk_t numblocks;
+	unsigned int meta_bg_size;
+
+	ext2fs_super_and_bgd_loc2(fs, group, &ret_super_blk2,
+					&ret_old_desc_blk2,
+					&ret_new_desc_blk2,
+					&ret_used_blks);
+
+	if (group == fs->group_desc_count-1) {
+		numblocks = (fs->super->s_blocks_count -
+			     fs->super->s_first_data_block) %
+			fs->super->s_blocks_per_group;
+		if (!numblocks)
+			numblocks = fs->super->s_blocks_per_group;
+	} else
+		numblocks = fs->super->s_blocks_per_group;
+
+	if (ret_super_blk)
+		*ret_super_blk = (blk_t)ret_super_blk2;
+	if (ret_old_desc_blk)
+		*ret_old_desc_blk = (blk_t)ret_old_desc_blk2;
+	if (ret_new_desc_blk)
+		*ret_new_desc_blk = (blk_t)ret_new_desc_blk2;
+	if (ret_meta_bg) {
+		meta_bg_size = EXT2_DESC_PER_BLOCK(fs->super);
+		*ret_meta_bg = group / meta_bg_size;
+	}
+
+	numblocks -= 2 + fs->inode_blocks_per_group + ret_used_blks;
+
+	return numblocks;
+}
 
 /*
  * This function forces out the primary superblock.  We need to only
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 511b9e3..2e1de10 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -725,6 +725,12 @@ extern errcode_t ext2fs_check_desc(ext2_filsys fs);
 extern errcode_t ext2fs_close(ext2_filsys fs);
 extern errcode_t ext2fs_flush(ext2_filsys fs);
 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
+extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
+				    dgrp_t group,
+				    blk64_t *ret_super_blk,
+				    blk64_t *ret_old_desc_blk,
+				    blk64_t *ret_new_desc_blk,
+				    blk_t *ret_used_blks);
 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs, 
 				    dgrp_t group,
 				    blk_t *ret_super_blk,

[Take2 PATCH 09/10][e2fsprogs] Use new ext2fs_super_and_bgd_loc2 call in libext2fs.

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Use new ext2fs_super_and_bgd_loc2 call in libext2fs.

The new ext2fs_super_and_bgd_loc2() function has some changes aside
from just blk64_t support.  Lets make sure that the interfaces are
sane by adding libext2fs support early to get the new API tested here.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 e2fsck/pass5.c        |    7 ++++---
 lib/ext2fs/alloc_sb.c |   23 +++++++++++++++++++----
 lib/ext2fs/closefs.c  |    9 +++++----
 3 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/e2fsck/pass5.c b/e2fsck/pass5.c
index cc17820..a729308 100644
--- a/e2fsck/pass5.c
+++ b/e2fsck/pass5.c
@@ -111,7 +111,8 @@ static void print_bitmap_problem(e2fsck_t ctx, int problem,
 static void check_block_bitmaps(e2fsck_t ctx)
 {
 	ext2_filsys fs = ctx->fs;
-	blk_t	i, super;
+	blk64_t	i;
+	blk_t   super;
 	int	*free_array;
 	int	group = 0;
 	blk_t	blocks = 0;
@@ -174,10 +175,10 @@ redo_counts:
 		actual = ext2fs_fast_test_block_bitmap(ctx->block_found_map, i);
 
 		if (skip_group) {
-			blk_t	super_blk, old_desc_blk, new_desc_blk;
+			blk64_t	super_blk, old_desc_blk, new_desc_blk;
 			int	old_desc_blocks;
 
-			ext2fs_super_and_bgd_loc(fs, group, &super_blk,
+			ext2fs_super_and_bgd_loc2(fs, group, &super_blk,
 					 &old_desc_blk, &new_desc_blk, 0);
 
 			if (fs->super->s_feature_incompat &
diff --git a/lib/ext2fs/alloc_sb.c b/lib/ext2fs/alloc_sb.c
index 200ce5c..00cc5b0 100644
--- a/lib/ext2fs/alloc_sb.c
+++ b/lib/ext2fs/alloc_sb.c
@@ -44,11 +44,12 @@ int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
 				 dgrp_t group,
 				 ext2fs_block_bitmap bmap)
 {
-	blk_t	super_blk, old_desc_blk, new_desc_blk;
+	blk64_t	super_blk, old_desc_blk, new_desc_blk;
+	blk_t	used_blks;
 	int	j, old_desc_blocks, num_blocks;
 
-	num_blocks = ext2fs_super_and_bgd_loc(fs, group, &super_blk, 
-					      &old_desc_blk, &new_desc_blk, 0);
+	ext2fs_super_and_bgd_loc2(fs, group, &super_blk,
+				  &old_desc_blk, &new_desc_blk, &used_blks);
 
 	if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG)
 		old_desc_blocks = fs->super->s_first_meta_bg;
@@ -57,16 +58,30 @@ int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
 			fs->desc_blocks + fs->super->s_reserved_gdt_blocks;
 
 	if (super_blk || (group == 0))
+		/* FIXME-64 */
 		ext2fs_mark_block_bitmap(bmap, super_blk);
 
 	if (old_desc_blk) {
 		if (fs->super->s_reserved_gdt_blocks && fs->block_map == bmap)
 			fs->group_desc[group].bg_flags &= ~EXT2_BG_BLOCK_UNINIT;
 		for (j=0; j < old_desc_blocks; j++)
+			/* FIXME-64 */
 			ext2fs_mark_block_bitmap(bmap, old_desc_blk + j);
 	}
 	if (new_desc_blk)
+		/* FIXME-64 */
 		ext2fs_mark_block_bitmap(bmap, new_desc_blk);
 
-	return num_blocks;
+	if (group == fs->group_desc_count-1) {
+		num_blocks = (fs->super->s_blocks_count -
+			     fs->super->s_first_data_block) %
+			fs->super->s_blocks_per_group;
+		if (!num_blocks)
+			num_blocks = fs->super->s_blocks_per_group;
+	} else
+		num_blocks = fs->super->s_blocks_per_group;
+
+	num_blocks -= 2 + fs->inode_blocks_per_group + used_blks;
+
+	return num_blocks  ;
 }
diff --git a/lib/ext2fs/closefs.c b/lib/ext2fs/closefs.c
index 8231ca6..b61556e 100644
--- a/lib/ext2fs/closefs.c
+++ b/lib/ext2fs/closefs.c
@@ -338,11 +338,10 @@ errcode_t ext2fs_flush(ext2_filsys fs)
 		old_desc_blocks = fs->desc_blocks;
 
 	for (i = 0; i < fs->group_desc_count; i++) {
-		blk_t	super_blk, old_desc_blk, new_desc_blk;
-		int	meta_bg;
+		blk64_t	super_blk, old_desc_blk, new_desc_blk;
 
-		ext2fs_super_and_bgd_loc(fs, i, &super_blk, &old_desc_blk, 
-					 &new_desc_blk, &meta_bg);
+		ext2fs_super_and_bgd_loc2(fs, i, &super_blk, &old_desc_blk,
+					 &new_desc_blk, 0);
 
 		if (!(fs->flags & EXT2_FLAG_MASTER_SB_ONLY) &&i && super_blk) {
 			retval = write_backup_super(fs, i, super_blk,
@@ -360,6 +359,8 @@ errcode_t ext2fs_flush(ext2_filsys fs)
 				goto errout;
 		}
 		if (new_desc_blk) {
+			int meta_bg = i / EXT2_DESC_PER_BLOCK(fs->super);
+
 			retval = io_channel_write_blk(fs->io, new_desc_blk,
 				1, group_ptr + (meta_bg*fs->blocksize));
 			if (retval)

[Take2 PATCH 10/10][e2fsprogs] Add 64-bit openfs interface.

[Jose R. Santos]

From: Jose R. Santos <jrs@us.ibm.com>

Add 64-bit openfs interface.

Add new ext2fs_descriptor_block_loc2() routine that takes blk64_t as
an input.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

 lib/ext2fs/ext2fs.h |    2 ++
 lib/ext2fs/openfs.c |   12 +++++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 2e1de10..3b7c3ed 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -1078,6 +1078,8 @@ extern errcode_t ext2fs_open2(const char *name, const char *io_options,
 			      int flags, int superblock, 
 			      unsigned int block_size, io_manager manager,
 			      ext2_filsys *ret_fs);
+extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
+					blk64_t group_block, dgrp_t i);
 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block, 
 					 dgrp_t i);
 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
diff --git a/lib/ext2fs/openfs.c b/lib/ext2fs/openfs.c
index fc54afe..6b365b7 100644
--- a/lib/ext2fs/openfs.c
+++ b/lib/ext2fs/openfs.c
@@ -29,11 +29,12 @@
 #include "ext2fs.h"
 #include "e2image.h"
 
-blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block, dgrp_t i)
+blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs, blk64_t group_block,
+				     dgrp_t i)
 {
 	int	bg;
 	int	has_super = 0;
-	int	ret_blk;
+	blk64_t	ret_blk;
 
 	if (!(fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) ||
 	    (i < fs->super->s_first_meta_bg))
@@ -42,7 +43,7 @@ blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block, dgrp_t i)
 	bg = EXT2_DESC_PER_BLOCK(fs->super) * i;
 	if (ext2fs_bg_has_super(fs, bg))
 		has_super = 1;
-	ret_blk = ext2fs_group_first_block(fs, bg) + has_super;
+	ret_blk = ext2fs_group_first_block2(fs, bg) + has_super;
 	/*
 	 * If group_block is not the normal value, we're trying to use
 	 * the backup group descriptors and superblock --- so use the
@@ -58,6 +59,11 @@ blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block, dgrp_t i)
 	return ret_blk;
 }
 
+blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block, dgrp_t i)
+{
+	return ext2fs_descriptor_block_loc2(fs, group_block, i);
+}
+
 errcode_t ext2fs_open(const char *name, int flags, int superblock,
 		      unsigned int block_size, io_manager manager, 
 		      ext2_filsys *ret_fs)

Re: [Take2 PATCH 00/10][e2fsprogs] Initial blk64_t capable API calls.

[Theodore Tso]

On Wed, May 21, 2008 at 12:53:25PM -0500, Jose R. Santos wrote:
> 
> The following series of patches implement API call needed to handle
> 64-bit block numbers.  Im concentrating mainly in providing the API
> call first and if the interfaces are sane, we can go ahead and start
> using them in the rest of libext2fs and the user space programs.
> 
> I've run checkpatch and make check on each individual patch in the
> series so they should be ready to add to the main repository if the
> interfaces are acceptable.

Jose, running "make check" with these configure options resulted in a
failure:

'--enable-elf-shlibs' '--enable-blkid-debug' '--enable-testio-debug' '--enable-maintainer-mode' '--enable-blkid-devmapper' '--enable-jbd-debug'

Part of the problem was the test_io manager didn't have 64-bit
support.  I fixed that, and rebased your patch series, but it still
died with a seg fault in the test u_undoe2fs_mke2fs.  

Checking out the undo_io manager, it's obvious why; it doesn't yet
have 64-bit support.  I'm not sure how you missed this, if you were
running "make check" after each patch.  What version of e2fsprogs was
your patches based off of?

          					- Ted


% more u_undoe2fs_mke2fs.log 
mke2fs -q -F -o Linux -b 1024 test.img
mke2fs 1.41-WIP (27-Apr-2008)
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
64 inodes, 512 blocks
25 blocks (4.88%) reserved for the super user
First data block=1
Maximum filesystem blocks=524288
1 block group
8192 blocks per group, 8192 fragments per group
64 inodes per group

Writing inode tables: done                            
Writing superblocks and filesystem accounting information: done

md5sum before mke2fs 4a393ac4351a41501aca1ad2917430b9
using mke2fs to test undoe2fs
Overwriting existing filesystem; this can be undone using the command:
    e2undo .//mke2fs-test.img.e2undo ./test.img

md5sum after mke2fs a34e9c16307770eb318a6afa39e127f6
check_filesystem: Unknown code ext2 104 Failed tdb_fetch Record does not exist

md5sum after undoe2fs a34e9c16307770eb318a6afa39e127f6

Re: [Take2 PATCH 00/10][e2fsprogs] Initial blk64_t capable API calls.

[Jose R. Santos]

On Sat, 24 May 2008 19:28:36 -0400
Theodore Tso <tytso@MIT.EDU> wrote:

> On Wed, May 21, 2008 at 12:53:25PM -0500, Jose R. Santos wrote:
> > 
> > The following series of patches implement API call needed to handle
> > 64-bit block numbers.  Im concentrating mainly in providing the API
> > call first and if the interfaces are sane, we can go ahead and start
> > using them in the rest of libext2fs and the user space programs.
> > 
> > I've run checkpatch and make check on each individual patch in the
> > series so they should be ready to add to the main repository if the
> > interfaces are acceptable.
> 
> Jose, running "make check" with these configure options resulted in a
> failure:
> 
> '--enable-elf-shlibs' '--enable-blkid-debug' '--enable-testio-debug' '--enable-maintainer-mode' '--enable-blkid-devmapper' '--enable-jbd-debug'
> 
> Part of the problem was the test_io manager didn't have 64-bit
> support.  I fixed that, and rebased your patch series, but it still
> died with a seg fault in the test u_undoe2fs_mke2fs.  
> 
> Checking out the undo_io manager, it's obvious why; it doesn't yet
> have 64-bit support.  I'm not sure how you missed this, if you were
> running "make check" after each patch.  What version of e2fsprogs was
> your patches based off of?

I did this off the "next" branch which has undo_io manager support but
after "make check", the last line looks like this:

u_undoe2fs_mke2fs: undoe2fs with mke2fs: u_undoe2fs_tune2fs: undoe2fs with tune2fs: 97 tests succeeded  0 tests failed

There is no log file for any of the undo manager test case so it seems
that they didn't even run.  I ran this on a system using Ubuntu, so it
may be a bash vs. dash issues.

> 
>           					- Ted
> 
> 
> % more u_undoe2fs_mke2fs.log 
> mke2fs -q -F -o Linux -b 1024 test.img
> mke2fs 1.41-WIP (27-Apr-2008)
> Filesystem label=
> OS type: Linux
> Block size=1024 (log=0)
> Fragment size=1024 (log=0)
> 64 inodes, 512 blocks
> 25 blocks (4.88%) reserved for the super user
> First data block=1
> Maximum filesystem blocks=524288
> 1 block group
> 8192 blocks per group, 8192 fragments per group
> 64 inodes per group
> 
> Writing inode tables: done                            
> Writing superblocks and filesystem accounting information: done
> 
> md5sum before mke2fs 4a393ac4351a41501aca1ad2917430b9
> using mke2fs to test undoe2fs
> Overwriting existing filesystem; this can be undone using the command:
>     e2undo .//mke2fs-test.img.e2undo ./test.img
> 
> md5sum after mke2fs a34e9c16307770eb318a6afa39e127f6
> check_filesystem: Unknown code ext2 104 Failed tdb_fetch Record does not exist
> 
> md5sum after undoe2fs a34e9c16307770eb318a6afa39e127f6



-JRS

Re: [Take2 PATCH 06/10][e2fsprogs] Add 64-bit alloc interface.

[Jose R. Santos]

On Wed, 21 May 2008 12:54:04 -0500
"Jose R. Santos" <jrs@us.ibm.com> wrote:

> From: Jose R. Santos <jrs@us.ibm.com>
> 
> Add 64-bit alloc interface.
> 
> Add new ext2fs_new_block2(), ext2fs_get_free_blocks2() and
> ext2fs_alloc_block2() that take and return blk64_t.
> 
> Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
> --
> 
>  lib/ext2fs/alloc.c  |   59
> +++++++++++++++++++++++++++++++++++++++++----------
> lib/ext2fs/ext2fs.h |    8 +++++++ 2 files changed, 55 insertions(+),
> 12 deletions(-)

Hi Ted,

This patch seems like it was added incorrectly into the pu branch.  None
of the changes to alloc.c show up.

Commit: db1856299023306583f6ca8bcb450c01735da8cb

Thanks

-JRS

Re: [Take2 PATCH 06/10][e2fsprogs] Add 64-bit alloc interface.

[Jose R. Santos]

On Fri, 13 Jun 2008 14:31:44 -0500
"Jose R. Santos" <jrs@us.ibm.com> wrote:

> On Wed, 21 May 2008 12:54:04 -0500
> "Jose R. Santos" <jrs@us.ibm.com> wrote:
> 
> > From: Jose R. Santos <jrs@us.ibm.com>
> > 
> > Add 64-bit alloc interface.
> > 
> > Add new ext2fs_new_block2(), ext2fs_get_free_blocks2() and
> > ext2fs_alloc_block2() that take and return blk64_t.
> > 
> > Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
> > --
> > 
> >  lib/ext2fs/alloc.c  |   59
> > +++++++++++++++++++++++++++++++++++++++++----------
> > lib/ext2fs/ext2fs.h |    8 +++++++ 2 files changed, 55
> > insertions(+), 12 deletions(-)
> 
> Hi Ted,
> 
> This patch seems like it was added incorrectly into the pu branch.
> None of the changes to alloc.c show up.
> 
> Commit: db1856299023306583f6ca8bcb450c01735da8cb
> 
> Thanks
> 
> -JRS

Looks like this was caused by a conflict with Commit:
f5c562e2324a8950d659ebfc8db4356121d6104e.  Fix patch bellow

-JRS

commit 397367a12d29703e9a056770c2ce39cbaa585a70
Author: Jose R. Santos <jrs@us.ibm.com>
Date:   Fri Jun 13 15:37:55 2008 -0500

Add 64-bit alloc interface.

Add new ext2fs_new_block2(), ext2fs_get_free_blocks2() and
ext2fs_alloc_block2() that take and return blk64_t.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
--

lib/ext2fs/alloc.c  |   59 +++++++++++++++++++++++++++++++++++++++++----------
lib/ext2fs/ext2fs.h |    8 +++++++
2 files changed, 55 insertions(+), 12 deletions(-)

diff --git a/lib/ext2fs/alloc.c b/lib/ext2fs/alloc.c
index f8d8a5f..38db123 100644
--- a/lib/ext2fs/alloc.c
+++ b/lib/ext2fs/alloc.c
@@ -73,10 +73,10 @@ errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir,
  * Stupid algorithm --- we now just search forward starting from the
  * goal.  Should put in a smarter one someday....
  */
-errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
-			   ext2fs_block_bitmap map, blk_t *ret)
+errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
+			   ext2fs_block_bitmap map, blk64_t *ret)
 {
-	blk_t	i;
+	blk64_t	i;
 
 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
 
@@ -88,6 +88,7 @@ errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
 		goal = fs->super->s_first_data_block;
 	i = goal;
 	do {
+		/* FIXME-64 */
 		if (!ext2fs_fast_test_block_bitmap(map, i)) {
 			*ret = i;
 			return 0;
@@ -99,15 +100,26 @@ errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
 	return EXT2_ET_BLOCK_ALLOC_FAIL;
 }
 
+errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
+			   ext2fs_block_bitmap map, blk_t *ret)
+{
+	errcode_t retval;
+	blk64_t val;
+	retval = ext2fs_new_block2(fs, goal, map, &val);
+	if (!retval)
+		*ret = (blk_t) val;
+	return retval;
+}
+
 /*
  * This function zeros out the allocated block, and updates all of the
  * appropriate filesystem records.
  */
-errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
-			     char *block_buf, blk_t *ret)
+errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
+			     char *block_buf, blk64_t *ret)
 {
 	errcode_t	retval;
-	blk_t		block;
+	blk64_t		block;
 	char		*buf = 0;
 
 	if (!block_buf) {
@@ -119,29 +131,27 @@ errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
 	memset(block_buf, 0, fs->blocksize);
 
 	if (fs->get_alloc_block) {
-		blk64_t	new;
-
-		retval = (fs->get_alloc_block)(fs, (blk64_t) goal, &new);
+		retval = (fs->get_alloc_block)(fs, goal, &block);
 		if (retval)
 			goto fail;
-		block = (blk_t) new;
 	} else {
 		if (!fs->block_map) {
+			/* FIXME-64 */
 			retval = ext2fs_read_block_bitmap(fs);
 			if (retval)
 				goto fail;
 		}
 
-		retval = ext2fs_new_block(fs, goal, 0, &block);
+		retval = ext2fs_new_block2(fs, goal, 0, &block);
 		if (retval)
 			goto fail;
 	}
 
-	retval = io_channel_write_blk(fs->io, block, 1, block_buf);
+	retval = io_channel_write_blk64(fs->io, block, 1, block_buf);
 	if (retval)
 		goto fail;
 	
-	ext2fs_block_alloc_stats(fs, block, +1);
+	ext2fs_block_alloc_stats2(fs, block, +1);
 	*ret = block;
 
 fail:
@@ -150,10 +160,21 @@ fail:
 	return retval;
 }
 
-errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,
-				 int num, ext2fs_block_bitmap map, blk_t *ret)
+errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
+			     char *block_buf, blk_t *ret)
+{
+	errcode_t retval;
+	blk64_t	val;
+	retval = ext2fs_alloc_block2(fs, goal, block_buf, &val);
+	if (!retval)
+		*ret = (blk_t) val;
+	return retval;
+}
+
+errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start, blk64_t finish,
+				 int num, ext2fs_block_bitmap map, blk64_t *ret)
 {
-	blk_t	b = start;
+	blk64_t	b = start;
 
 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
 
@@ -170,6 +191,7 @@ errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,
 	do {
 		if (b+num-1 > fs->super->s_blocks_count)
 			b = fs->super->s_first_data_block;
+		/* FIXME-64 */
 		if (ext2fs_fast_test_block_bitmap_range(map, b, num)) {
 			*ret = b;
 			return 0;
@@ -179,6 +201,17 @@ errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,
 	return EXT2_ET_BLOCK_ALLOC_FAIL;
 }
 
+errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,
+				 int num, ext2fs_block_bitmap map, blk_t *ret)
+{
+	errcode_t retval;
+	blk64_t val;
+	retval = ext2fs_get_free_blocks2(fs, start, finish, num, map, &val);
+	if(!retval)
+		*ret = (blk_t) val;
+	return retval;
+}
+
 void ext2fs_set_alloc_block_callback(ext2_filsys fs, 
 				     errcode_t (*func)(ext2_filsys fs,
 						       blk64_t goal,
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index e256a97..32e17e0 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -554,12 +554,20 @@ extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
 				  ext2fs_inode_bitmap map, ext2_ino_t *ret);
 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
 				  ext2fs_block_bitmap map, blk_t *ret);
+extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
+				   ext2fs_block_bitmap map, blk64_t *ret);
 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
 					blk_t finish, int num,
 					ext2fs_block_bitmap map,
 					blk_t *ret);
+extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
+					 blk64_t finish, int num,
+					 ext2fs_block_bitmap map,
+					 blk64_t *ret);
 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
 				    char *block_buf, blk_t *ret);
+extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
+				     char *block_buf, blk64_t *ret);
 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs, 
 					    errcode_t (*func)(ext2_filsys fs,
 							      blk64_t goal,