From: Arne Jansen <sensille@gmx.net>
Date: Mon, 23 May 2011 12:25:41 +0000 (+0200)
Subject: btrfs: add READAHEAD extent buffer flag
X-Git-Tag: v3.2-rc1~21^2~9^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ab0fff03055d2d1b01a7581badeba18db9c4f55c;p=pandora-kernel.git

btrfs: add READAHEAD extent buffer flag

Add a READAHEAD extent buffer flag.
Add a function to trigger a read with this flag set.

Changes v2:
 - use extent buffer flags instead of extent state flags

Changes v5:
 - adapt to changed read_extent_buffer_pages interface
 - don't return eb from reada_tree_block_flagged if it has CORRUPT flag set

Signed-off-by: Arne Jansen <sensille@gmx.net>
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