[RFC][E2FSPROGS][PATCH 0/8]

hello!

we've updated Laurent's patches that add 64bit support to e2fsprogs-1.38 to
apply on e2fsprogs-1.39.

[patch 1/8] move-bg_flags

	move the new 'bg_flags' field of the ext2_group_desc structure in
	order to make room for the MSB of the 64bit fields.

The rest of the patches aren't novel; here i just recall Laurent's comments:

[patch 2/8] 64bit-pblk_t

	Introduce the pblk_t type. This type is used to store physical block
	numbers and has the size of physical block numbers (32bit) as stored
	in the inode (it is the on-disk block number type).

[patch 3/8] 64bit-blk_t

	Change some unsigned int, unsigned long, etc to blk_t. At this stage
	its size is still 32bit. But in the following patches it becomes
	64bit wide while pblk_t stays 32bit.

[patch 4/8] 64bit

	Introduce 64bit management. blk_t becomes 64bit wide. Manage
	meta-data structures as introduced by kernel patch "[RFC 3/5]
	support >32 bit ext3: 64 bit superblock changes".

[patch 5/8] extents

	Partial support of extents. Allows to run e2fsck and debug2fs on
	file-systems with extents. debug2fs allows to use "cat" and "stat" on
	files with extents. e2fsck allows to fsck a file-system with extents
	but cannot repair it.

[patch 6/8] extents-physical-block64

	Introduce 64bit extents physical block number.

[patch 7/8] extents-logical-block64

	Introduce 64bit extents logical block number.

[patch 8/8] big_bg

	Introduce management of larger block groups. The patch allows
	bitmaps of each block group to be spread over several blocks and
	also allows groups to be larger than (8 * blocksize) blocks.


regards,

-- 
Alexandre


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