[PATCH 0/6 v2] xfs: delalloc, dio and corruption...

[Dave Chinner]

Hi folks,

This is version 2 of the DIO vs delalloc patchset I posted here:

http://oss.sgi.com/archives/xfs/2014-03/msg00313.html

The changes to this version are:

	- the bug fix to patch 2 that Brain noticed,
	- I dropped the delalloc extent splittting patch because
	  with the fix to patch 2 I can't trigger that bug anymore,
	  and that patch was causing transaction overruns in
	  xfs/297. Hence without an existing reproducer, I won't try
	  to fix that problem.
	- the last patch is new, and is a bug in the collapse range
	  code where it fails to shift the last N extents correctly
	  if there are N delalloc extents before the shifted range.

With these 6 patches, all of the xfstests fsx/fsstress tests pass
on 1k, 2k and 4k block size filesystems, with and without CRCs
enabled, on 1, 2 and 16p test VMs.

I'm much happier with these patches now - I don't think that there
are more problems lurking, but only time will tell. I'd like to get
these fixes to Linus for 3.15 (probably for -rc2), so eyeballs and
testing would be appreciated.

Cheers,

Dave.