[Xen-devel] [PATCH] xen-blkfront patches for 2.6.40.

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

I am proposing these three patches for 2.6.40. 

 [PATCH 1/3] xen-blkfront: fix data size for xenbus_gather in blkfront_connect

fixes a bug, while these two:
 [PATCH 2/3] xen-blkfront: Provide for 'feature-flush-cache' the 
BLKIF_OP_WRITE_FLUSH_CACHE operation.
 [PATCH 3/3] xen-blkfront: Introduce BLKIF_OP_FLUSH_DISKCACHE support.

Provide the functionality to use the BLKIF_OP_WRITE_FLUSH_CACHE operation, 
which is
negotiated with the backend if the 'feature-flush-cache' is advertised. 
Currently there
are three OSes that advertise this flag: NetBSD 5.1 (and unstable), Linux
(devel/xen-blkback-v3.1), and Solaris.

I've tested it with success on NetBSD 5.1 Dom0, and with Linux v2.6.39-rc6 with
the devel/xen-blkback-v3.1 patches.

The git tree with these patches is:
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/blkfront


 drivers/block/xen-blkfront.c     |   51 +++++++++++++++++++++++++++----------
 include/xen/interface/io/blkif.h |   13 +++++++++
 2 files changed, 50 insertions(+), 14 deletions(-)


Konrad Rzeszutek Wilk (2):
      xen-blkfront: Provide for 'feature-flush-cache' the 
BLKIF_OP_WRITE_FLUSH_CACHE operation.
      xen-blkfront: Introduce BLKIF_OP_FLUSH_DISKCACHE support.

Marek Marczykowski (1):
      xen-blkfront: fix data size for xenbus_gather in blkfront_connect


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