xen/blkback: Add support for BLKIF_OP_FLUSH_DISKCACHE and drop BLKIF_OP_WRITE_BARRIER.

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We drop the support for 'feature-barrier' and add in the support
for the 'feature-flush-cache' if the real backend storage supports
flushing.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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Konrad Rzeszutek Wilk 2011-05-04 17:07:27 -04:00

parent 73d842af27

commit 24f567f952

3 changed files with 34 additions and 25 deletions

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33

drivers/block/xen-blkback/blkback.c

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7

drivers/block/xen-blkback/common.h

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19

drivers/block/xen-blkback/xenbus.c

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