Changes:
o Only perform torn log write detection on dirty logs. This prevents
failures being detected due to a clean filesystem being moved
between machines or kernels of different architectures (e.g. 32
-> 64 bit, BE -> LE, etc). This fixes a regression introduced by
the torn log write detection in 4.5-rc1.
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Merge tag 'xfs-for-linus-4.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs fixes from Dave Chinner:
"This is a fix for a regression introduced in 4.5-rc1 by the new torn
log write detection code. The regression only affects people moving a
clean filesystem between machines/kernels of different architecture
(such as changing between 32 bit and 64 bit kernels), but this is the
recommended (and only!) safe way to migrate a filesystem between
architectures so we really need to ensure it works.
The changes are larger than I'd prefer right at the end of the release
cycle, but the majority of the change is just factoring code to enable
the detection of a clean log at the correct time to avoid this issue.
Changes:
- Only perform torn log write detection on dirty logs. This prevents
failures being detected due to a clean filesystem being moved
between machines or kernels of different architectures (e.g. 32 ->
64 bit, BE -> LE, etc). This fixes a regression introduced by the
torn log write detection in 4.5-rc1"
* tag 'xfs-for-linus-4.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: only run torn log write detection on dirty logs
xfs: refactor in-core log state update to helper
xfs: refactor unmount record detection into helper
xfs: separate log head record discovery from verification
2a62ec0af2