From: Santosh Jodh santosh.j...@citrix.com
Add support for multi page ring for block devices.
The number of pages is configurable for blkback via module parameter.
blkback reports max-ring-page-order to blkfront via xenstore.
blkfront reports its supported ring-page-order to blkback via xenstore
Great feedback. I removed unsigned for the first, changed the error code and
added module param name in the printk.
Please see latest patch:
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diff --git a/drivers/block/xen-blkback/blkback.c
b/drivers/block/xen-blkback/blkback.c
index 0088bf6..cc238e7 100644
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