ext4: Remove wait for unwritten extents in ext4_ind_direct_IO()
We don't have to wait for unwritten extent conversion in ext4_ind_direct_IO() as all writes that happened before DIO are flushed by the generic code and extent conversion has happened before we cleared PageWriteback bit. Reviewed-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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@ -675,11 +675,6 @@ ssize_t ext4_ind_direct_IO(int rw, struct kiocb *iocb,
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retry:
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if (rw == READ && ext4_should_dioread_nolock(inode)) {
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if (unlikely(atomic_read(&EXT4_I(inode)->i_unwritten))) {
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mutex_lock(&inode->i_mutex);
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ext4_flush_unwritten_io(inode);
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mutex_unlock(&inode->i_mutex);
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}
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/*
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* Nolock dioread optimization may be dynamically disabled
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* via ext4_inode_block_unlocked_dio(). Check inode's state
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