From: Chris Mason Date: Thu, 24 Jan 2008 21:13:08 +0000 (-0500) Subject: Btrfs: Split the extent_map code into two parts X-Git-Tag: v2.6.29-rc1~27^2~9^2~55^2~56^2~30^2~321 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d1310b2e0cd98eb1348553e69b73827b436dca7b;p=pandora-kernel.git Btrfs: Split the extent_map code into two parts There is now extent_map for mapping offsets in the file to disk and extent_io for state tracking, IO submission and extent_bufers. The new extent_map code shifts from [start,end] pairs to [start,len], and pushes the locking out into the caller. This allows a few performance optimizations and is easier to use. A number of extent_map usage bugs were fixed, mostly with failing to remove extent_map entries when changing the file. Signed-off-by: Chris Mason --- Reading git-diff-tree failed