Re: linux-next: build failure after merge of the aio tree

From: Linus Torvalds
Date: Fri Aug 30 2013 - 13:38:31 EST


On Fri, Aug 30, 2013 at 12:55 AM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> - aio_ring_file->f_path.dentry->d_count,
> + aio_ring_file->f_path.dentry->d_lockref.count,

This is wrong. If you really want the dentry count (which I doubt, I
don't see why this code would care _even_ just for a debug printout),
you should use

d_count(aio_ring_file->f_dentry)

instead these days. That will get the count from the right place,
regardless of any lockref issues or anything else (and f_dentry may be
the "old" way to get the dentry, but it's still supported and unlikely
to go away. No point in writing out "f_path.dentry" unless you *want*
to be aware of the fact that f_path has both a dentry and a mnt member
- but most people really don't care about the mnt information).

Linus
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