Re: [PATCH RFC 01/16] btrfs-progs: fsck: Introduce function to check tree block backref in extent tree

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On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi <lufq.fnst@xxxxxxxxxxxxxx>

Introduce function check_tree_block_ref() to check whether a tree block
has correct backref in extent tree.

Unlike old extent tree check method, we only use search_slot() to search
reference, no extra structure will be allocated in heap to record what we
have checked.

This method may cause a little more IO, but should work for super large
fs without triggering OOM.

Signed-off-by: Lu Fengqi <lufq.fnst@xxxxxxxxxxxxxx>
Signed-off-by: Qu Wenruo <quwenruo@xxxxxxxxxxxxxx>

Reviewed-by: Josef Bacik <jbacik@xxxxxx>

Thanks,

Josef
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