ext4: Fix lock inversion in ext4_ext_truncate()
We cannot call ext4_orphan_add() from under i_data_sem because that causes a lock ordering violation between i_data_sem and and the superblock lock. Updated with Aneesh's locking order fix Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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