tree fc86826db4b41589e939aa3a4dff56be67056273
parent 66b4993e95c17e0ee30f0d72f0d6e00e5c035a98
author Su Yue <suy.fnst@cn.fujitsu.com> 1496743020 +0800
committer David Sterba <dsterba@suse.com> 1498065364 +0200

btrfs: Introduce btrfs_is_name_len_valid to avoid reading beyond boundary

Introduce function btrfs_is_name_len_valid.

The function compares parameter @name_len with item boundary then
returns true if name_len is valid.

Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ s/btrfs_leaf_data/BTRFS_LEAF_DATA_OFFSET/ ]
Signed-off-by: David Sterba <dsterba@suse.com>