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Subject[PATCH] xen-blk[front|back] FUA additions.
I am proposing these two patches for 3.2. They allow the backend
to process the REQ_FUA request as well. Previous to these patches
it only did REQ_FLUSH. There is also a bug-fix for the logic
of how barrier/flushes were handled.

The patches are based on a branch which also has 'feature-discard'
patches, so they won't apply nativly on top of 3.1-rc5.

Please review and if there are no concerns I will send a proper
git pull to Jens to pick up the whole branch for 3.2.

drivers/block/xen-blkback/blkback.c | 11 ++++++-----
drivers/block/xen-blkfront.c | 12 ++++++------
drivers/block/xen-blkfront.c | 8 ++++----
3 files changed, 16 insertions(+), 15 deletions(-)

The full git tree is currently at my backup git tree:

git:// stable/for-jens-3.2

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