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Date:	Sat, 23 Apr 2011 01:44:14 -0700
From:	Yongqiang Yang <>
Subject: [PATCH RFC v1 0/5]Factor common code from convert and split unwritten.

   fix a bug in ext4_ext_convert_to_initialized() reported by
   Allison <>.

   optimize ext4_ext_convert_to_initialized().

-- factor common code
   These patches factor common code from ext4_ext_convert_to_initialized() and
   ext4_split_unwritten_extents() so that extent-move-on-write in snapshot and
   punch hole can be built on the common code.

-- optimization
   the 4th and the 5th patch optimize ext4_ext_convert_to_initialized() by
   zeroing out in memory.

[PATCH RFC v1 1/5] ext4:Add a function merging extent right and left.
[PATCH RFC v1 2/5] ext4:Add two functions splitting an extent.
[PATCH RFC v1 3/5] ext4:Reimplement convert and split_unwritten.
[PATCH RFC v1 4/5] ext4: Add a function ext4_ext_zeroout_mem().
[PATCH RFC v1 5/5] ext4: optimize ext4_ext_convert_to_initialized().
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