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author	Rusty Russell <rusty@rustcorp.com.au>
	Thu, 24 Sep 2009 04:26:31 +0000 (22:26 -0600)
committer	Rusty Russell <rusty@rustcorp.com.au>
	Wed, 23 Sep 2009 12:56:31 +0000 (22:26 +0930)
commit	3c1b27d5043086a485f8526353ae9fe37bfa1065
tree	e3b6eda3c66bcd1fc3af6e7fa6e4e3af77459474	tree \| snapshot
parent	f68d24082e22ccee3077d11aeb6dc5354f0ca7f1	commit \| diff

virtio: make add_buf return capacity remaining

This API change means that virtio_net can tell how much capacity
remains for buffers. It's necessarily fuzzy, since
VIRTIO_RING_F_INDIRECT_DESC means we can fit any number of descriptors
in one, *if* we can kmalloc.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Dinesh Subhraveti <dineshs@us.ibm.com>

John Crispins staging tree

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drivers/block/virtio_blk.c		diff \| blob \| history
drivers/char/hw_random/virtio-rng.c		diff \| blob \| history
drivers/char/virtio_console.c		diff \| blob \| history
drivers/net/virtio_net.c		diff \| blob \| history
drivers/virtio/virtio_balloon.c		diff \| blob \| history
drivers/virtio/virtio_ring.c		diff \| blob \| history
include/linux/virtio.h		diff \| blob \| history
net/9p/trans_virtio.c		diff \| blob \| history