ext4: fix forgetten xattr lock protection in ext4_expand_extra_isize
We should avoid the contention between the i_extra_isize update and the inline data insertion, so move the xattr trylock in front of i_extra_isize update. Signed-off-by: NMiao Xie <miaoxie@huawei.com> Reviewed-by: NWang Shilong <wshilong@ddn.com>
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