Re: [PATCH 4/4] xfs: allocate direct I/O COW blocks in iomap_begin

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On Thu, Feb 09, 2017 at 08:58:41AM +0100, Christoph Hellwig wrote:
> On Wed, Feb 08, 2017 at 11:53:22PM -0800, Darrick J. Wong wrote:
> > Testing isn't done yet, but xfs/222 seems to be blowing up at
> > ASSERT(!rwsem_is_locked(&inode->i_rwsem)) in xfs_super.c fairly
> > consistently with blocksize=1k.  I haven't been able to reproduce it
> > quickly (i.e. without running the whole test suite) so I can't tell if
> > that's a side effect of something else blowing up or what.  generic/300
> > seems to blow up periodically and then blows the same assert on umount,
> > also in the 1k case.  xfs/348 fuzzes the fs, causes "kernel memory
> > exposure!" BUGs and then asserts with the same i_rwsem thing.
> 
> I'll take a look at the umount assert while you're asleep.  348 is
> a pretty new test, so I doubt it's a regrewssion.

I could not reproduce the issue here.
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