On Thu, 01 Mar 2007 09:37:06 +0100 Miklos Szeredi <[EMAIL PROTECTED]> wrote:
> > Sigh. What's this about i_mutex? That appears to be some critical
> > information which _still_ isn't being communicated.
> >
>
> This:
>
> ssize_t generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
> unsigned long nr_segs, loff_t pos)
> {
> struct file *file = iocb->ki_filp;
> struct address_space *mapping = file->f_mapping;
> struct inode *inode = mapping->host;
> ssize_t ret;
>
> BUG_ON(iocb->ki_pos != pos);
>
> mutex_lock(&inode->i_mutex);
> ret = __generic_file_aio_write_nolock(iocb, iov, nr_segs,
> &iocb->ki_pos);
> mutex_unlock(&inode->i_mutex);
>
>
> It's in the stack trace. I thought it was obvious.
No, it is not obvious.
I'm just not going to apply weird hacks to work around a bug which
I do not understand, and I have spent way too much time trying to understand
this one.
So let us persist.
Please fully describe the role of i_mutex in this hang.
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