> +static void btrfs_direct_read_iodone(struct kiocb *iocb, loff_t offset,
> + ssize_t bytes, void *private, int ret,
> + bool is_async)
> +{
> + struct inode *inode = iocb->ki_filp->f_mapping->host;
> + u64 lockend;
> +
> + if (get_state_private(&BTRFS_I(inode)->io_tree, offset, &lockend)) {
> + WARN_ON(1);
> + goto out;
> + }
> +
> + unlock_extent(&BTRFS_I(inode)->io_tree, offset, lockend);
> +out:
> + if (is_async)
> + aio_complete(iocb, ret, 0);
> + inode_dio_done(inode);
> +}
Hmm. I'm worried that this can be called from interrupt context and the
state/extent calls there seem to use bare spin locks. Did you run this
with lockdep? Am I confused?
- z
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